./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.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/chl-match-trans.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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:32:44,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:32:44,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:32:44,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:32:44,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:32:45,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:32:45,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:32:45,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:32:45,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:32:45,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:32:45,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:32:45,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:32:45,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:32:45,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:32:45,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:32:45,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:32:45,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:32:45,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:32:45,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:32:45,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:32:45,024 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:32:45,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:32:45,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:32:45,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:32:45,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:32:45,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:32:45,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:32:45,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:32:45,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:32:45,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:32:45,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:32:45,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:32:45,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:32:45,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:32:45,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:32:45,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:32:45,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:32:45,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:32:45,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:32:45,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:32:45,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:32:45,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:32:45,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:32:45,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:32:45,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:32:45,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:32:45,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:32:45,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:32:45,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:32:45,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:32:45,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:32:45,067 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:32:45,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:32:45,068 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:32:45,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:32:45,069 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:32:45,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:32:45,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:32:45,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:32:45,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:32:45,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:32:45,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:32:45,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:32:45,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:45,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:32:45,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:32:45,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:32:45,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:32:45,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:32:45,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:32:45,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:32:45,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:32:45,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-04-18 16:32:45,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:32:45,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:32:45,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:32:45,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:32:45,286 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:32:45,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2022-04-18 16:32:45,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/721cdfedd/aef953e6b8f34b1d980417b6fe34b924/FLAG470097204 [2022-04-18 16:32:45,639 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:32:45,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2022-04-18 16:32:45,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/721cdfedd/aef953e6b8f34b1d980417b6fe34b924/FLAG470097204 [2022-04-18 16:32:46,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/721cdfedd/aef953e6b8f34b1d980417b6fe34b924 [2022-04-18 16:32:46,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:32:46,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:32:46,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:46,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:32:46,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:32:46,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574c2f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46, skipping insertion in model container [2022-04-18 16:32:46,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:32:46,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:32:46,267 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/chl-match-trans.wvr.c[2954,2967] [2022-04-18 16:32:46,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:46,276 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:32:46,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c[2954,2967] [2022-04-18 16:32:46,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:46,321 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:32:46,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46 WrapperNode [2022-04-18 16:32:46,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:46,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:46,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:32:46,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:32:46,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,357 INFO L137 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 375 [2022-04-18 16:32:46,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:46,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:32:46,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:32:46,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:32:46,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:32:46,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:32:46,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:32:46,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:32:46,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:46,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:46,411 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 16:32:46,429 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 16:32:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:32:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:32:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:32:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:32:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:32:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:32:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:32:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:32:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:32:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:32:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:32:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:32:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:32:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:32:46,484 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 16:32:46,553 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:32:46,554 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:32:46,938 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:32:46,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:32:46,947 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:32:46,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:46 BoogieIcfgContainer [2022-04-18 16:32:46,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:32:46,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:32:46,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:32:46,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:32:46,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:32:46" (1/3) ... [2022-04-18 16:32:46,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4b827b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:46, skipping insertion in model container [2022-04-18 16:32:46,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (2/3) ... [2022-04-18 16:32:46,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4b827b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:46, skipping insertion in model container [2022-04-18 16:32:46,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:46" (3/3) ... [2022-04-18 16:32:46,956 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-04-18 16:32:46,959 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:32:46,960 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:32:46,960 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-04-18 16:32:46,960 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:32:47,075 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:32:47,116 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:32:47,120 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 16:32:47,121 INFO L341 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-04-18 16:32:47,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 492 places, 509 transitions, 1042 flow [2022-04-18 16:32:47,331 INFO L129 PetriNetUnfolder]: 27/506 cut-off events. [2022-04-18 16:32:47,332 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:47,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 506 events. 27/506 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1020 event pairs, 0 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 353. Up to 2 conditions per place. [2022-04-18 16:32:47,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 492 places, 509 transitions, 1042 flow [2022-04-18 16:32:47,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 482 transitions, 982 flow [2022-04-18 16:32:47,367 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2022-04-18 16:32:47,367 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:32:47,367 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,368 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:47,368 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:47,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,374 INFO L85 PathProgramCache]: Analyzing trace with hash 604376553, now seen corresponding path program 1 times [2022-04-18 16:32:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870277844] [2022-04-18 16:32:47,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:47,530 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 16:32:47,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:47,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870277844] [2022-04-18 16:32:47,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870277844] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:47,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:47,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:47,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289051922] [2022-04-18 16:32:47,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:47,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:47,572 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 509 [2022-04-18 16:32:47,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 482 transitions, 982 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:47,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:47,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 509 [2022-04-18 16:32:47,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:47,867 INFO L129 PetriNetUnfolder]: 121/1161 cut-off events. [2022-04-18 16:32:47,868 INFO L130 PetriNetUnfolder]: For 99/138 co-relation queries the response was YES. [2022-04-18 16:32:47,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1354 conditions, 1161 events. 121/1161 cut-off events. For 99/138 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5733 event pairs, 60 based on Foata normal form. 244/1181 useless extension candidates. Maximal degree in co-relation 1055. Up to 142 conditions per place. [2022-04-18 16:32:47,906 INFO L132 encePairwiseOnDemand]: 494/509 looper letters, 21 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2022-04-18 16:32:47,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 469 transitions, 1002 flow [2022-04-18 16:32:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:47,923 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:47,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:47,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:47,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:47,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:47,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:47,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:47,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:47,946 INFO L186 Difference]: Start difference. First operand has 467 places, 482 transitions, 982 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:47,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 469 transitions, 1002 flow [2022-04-18 16:32:47,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 469 transitions, 990 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:32:47,960 INFO L242 Difference]: Finished difference. Result has 462 places, 469 transitions, 948 flow [2022-04-18 16:32:47,962 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=948, PETRI_PLACES=462, PETRI_TRANSITIONS=469} [2022-04-18 16:32:47,965 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -5 predicate places. [2022-04-18 16:32:47,965 INFO L478 AbstractCegarLoop]: Abstraction has has 462 places, 469 transitions, 948 flow [2022-04-18 16:32:47,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:47,966 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,967 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] [2022-04-18 16:32:47,967 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:32:47,967 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash 68722251, now seen corresponding path program 1 times [2022-04-18 16:32:47,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843035829] [2022-04-18 16:32:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,026 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 16:32:48,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843035829] [2022-04-18 16:32:48,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843035829] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439504957] [2022-04-18 16:32:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:48,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:48,033 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 509 [2022-04-18 16:32:48,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 469 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 509 [2022-04-18 16:32:48,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,206 INFO L129 PetriNetUnfolder]: 62/1217 cut-off events. [2022-04-18 16:32:48,206 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:32:48,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 1217 events. 62/1217 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5489 event pairs, 21 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 1250. Up to 58 conditions per place. [2022-04-18 16:32:48,233 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 15 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2022-04-18 16:32:48,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 468 transitions, 980 flow [2022-04-18 16:32:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:48,236 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:48,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:48,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:48,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:48,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,243 INFO L186 Difference]: Start difference. First operand has 462 places, 469 transitions, 948 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:48,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 468 transitions, 980 flow [2022-04-18 16:32:48,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 468 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:48,249 INFO L242 Difference]: Finished difference. Result has 461 places, 468 transitions, 946 flow [2022-04-18 16:32:48,250 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=461, PETRI_TRANSITIONS=468} [2022-04-18 16:32:48,251 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -6 predicate places. [2022-04-18 16:32:48,251 INFO L478 AbstractCegarLoop]: Abstraction has has 461 places, 468 transitions, 946 flow [2022-04-18 16:32:48,252 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,252 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,252 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] [2022-04-18 16:32:48,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:32:48,252 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash -201434390, now seen corresponding path program 1 times [2022-04-18 16:32:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630364929] [2022-04-18 16:32:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,306 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 16:32:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630364929] [2022-04-18 16:32:48,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630364929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:48,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481967748] [2022-04-18 16:32:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:48,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:48,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:48,312 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 509 [2022-04-18 16:32:48,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 468 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 509 [2022-04-18 16:32:48,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,516 INFO L129 PetriNetUnfolder]: 66/1309 cut-off events. [2022-04-18 16:32:48,517 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:32:48,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1382 conditions, 1309 events. 66/1309 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6291 event pairs, 21 based on Foata normal form. 0/1104 useless extension candidates. Maximal degree in co-relation 1335. Up to 58 conditions per place. [2022-04-18 16:32:48,550 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 15 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2022-04-18 16:32:48,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 467 transitions, 978 flow [2022-04-18 16:32:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:48,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:48,554 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:48,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:48,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:48,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:48,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,562 INFO L186 Difference]: Start difference. First operand has 461 places, 468 transitions, 946 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:48,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 467 transitions, 978 flow [2022-04-18 16:32:48,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 467 transitions, 974 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:48,568 INFO L242 Difference]: Finished difference. Result has 460 places, 467 transitions, 944 flow [2022-04-18 16:32:48,569 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=944, PETRI_PLACES=460, PETRI_TRANSITIONS=467} [2022-04-18 16:32:48,570 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -7 predicate places. [2022-04-18 16:32:48,571 INFO L478 AbstractCegarLoop]: Abstraction has has 460 places, 467 transitions, 944 flow [2022-04-18 16:32:48,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,572 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,572 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 16:32:48,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:32:48,572 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:48,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,573 INFO L85 PathProgramCache]: Analyzing trace with hash 350263572, now seen corresponding path program 1 times [2022-04-18 16:32:48,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557588800] [2022-04-18 16:32:48,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,639 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 16:32:48,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557588800] [2022-04-18 16:32:48,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557588800] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:48,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869532757] [2022-04-18 16:32:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:48,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:48,645 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 509 [2022-04-18 16:32:48,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 467 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 509 [2022-04-18 16:32:48,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,945 INFO L129 PetriNetUnfolder]: 248/1841 cut-off events. [2022-04-18 16:32:48,945 INFO L130 PetriNetUnfolder]: For 14/56 co-relation queries the response was YES. [2022-04-18 16:32:48,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2159 conditions, 1841 events. 248/1841 cut-off events. For 14/56 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 11974 event pairs, 132 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 2105. Up to 255 conditions per place. [2022-04-18 16:32:48,983 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 21 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2022-04-18 16:32:48,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 466 transitions, 988 flow [2022-04-18 16:32:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-04-18 16:32:48,986 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9410609037328095 [2022-04-18 16:32:48,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-04-18 16:32:48,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-04-18 16:32:48,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-04-18 16:32:48,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,995 INFO L186 Difference]: Start difference. First operand has 460 places, 467 transitions, 944 flow. Second operand 3 states and 1437 transitions. [2022-04-18 16:32:48,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 466 transitions, 988 flow [2022-04-18 16:32:48,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 466 transitions, 984 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,005 INFO L242 Difference]: Finished difference. Result has 459 places, 466 transitions, 942 flow [2022-04-18 16:32:49,007 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=942, PETRI_PLACES=459, PETRI_TRANSITIONS=466} [2022-04-18 16:32:49,008 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -8 predicate places. [2022-04-18 16:32:49,008 INFO L478 AbstractCegarLoop]: Abstraction has has 459 places, 466 transitions, 942 flow [2022-04-18 16:32:49,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,009 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,009 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:49,009 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:32:49,010 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:49,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,011 INFO L85 PathProgramCache]: Analyzing trace with hash 648522766, now seen corresponding path program 1 times [2022-04-18 16:32:49,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248731884] [2022-04-18 16:32:49,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,067 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 16:32:49,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248731884] [2022-04-18 16:32:49,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248731884] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112851849] [2022-04-18 16:32:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,069 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,071 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 509 [2022-04-18 16:32:49,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 466 transitions, 942 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 509 [2022-04-18 16:32:49,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,264 INFO L129 PetriNetUnfolder]: 100/1531 cut-off events. [2022-04-18 16:32:49,264 INFO L130 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-04-18 16:32:49,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 1531 events. 100/1531 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9425 event pairs, 39 based on Foata normal form. 0/1267 useless extension candidates. Maximal degree in co-relation 1582. Up to 85 conditions per place. [2022-04-18 16:32:49,290 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 15 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2022-04-18 16:32:49,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 465 transitions, 974 flow [2022-04-18 16:32:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:49,293 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:49,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:49,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:49,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:49,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,299 INFO L186 Difference]: Start difference. First operand has 459 places, 466 transitions, 942 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:49,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 465 transitions, 974 flow [2022-04-18 16:32:49,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 465 transitions, 970 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,305 INFO L242 Difference]: Finished difference. Result has 458 places, 465 transitions, 940 flow [2022-04-18 16:32:49,306 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=940, PETRI_PLACES=458, PETRI_TRANSITIONS=465} [2022-04-18 16:32:49,308 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -9 predicate places. [2022-04-18 16:32:49,308 INFO L478 AbstractCegarLoop]: Abstraction has has 458 places, 465 transitions, 940 flow [2022-04-18 16:32:49,309 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,309 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,309 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] [2022-04-18 16:32:49,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:32:49,310 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1379873177, now seen corresponding path program 1 times [2022-04-18 16:32:49,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271800896] [2022-04-18 16:32:49,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,367 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 16:32:49,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271800896] [2022-04-18 16:32:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271800896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413763543] [2022-04-18 16:32:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,373 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 509 [2022-04-18 16:32:49,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 465 transitions, 940 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 509 [2022-04-18 16:32:49,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,572 INFO L129 PetriNetUnfolder]: 100/1500 cut-off events. [2022-04-18 16:32:49,572 INFO L130 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-04-18 16:32:49,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1500 events. 100/1500 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9146 event pairs, 39 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 1544. Up to 85 conditions per place. [2022-04-18 16:32:49,596 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 15 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2022-04-18 16:32:49,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 464 transitions, 972 flow [2022-04-18 16:32:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:49,599 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:49,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:49,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:49,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:49,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,605 INFO L186 Difference]: Start difference. First operand has 458 places, 465 transitions, 940 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:49,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 464 transitions, 972 flow [2022-04-18 16:32:49,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 464 transitions, 968 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,611 INFO L242 Difference]: Finished difference. Result has 457 places, 464 transitions, 938 flow [2022-04-18 16:32:49,612 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=457, PETRI_TRANSITIONS=464} [2022-04-18 16:32:49,614 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -10 predicate places. [2022-04-18 16:32:49,614 INFO L478 AbstractCegarLoop]: Abstraction has has 457 places, 464 transitions, 938 flow [2022-04-18 16:32:49,616 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,616 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,616 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] [2022-04-18 16:32:49,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:32:49,616 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash 648070912, now seen corresponding path program 1 times [2022-04-18 16:32:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008469110] [2022-04-18 16:32:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,687 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 16:32:49,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008469110] [2022-04-18 16:32:49,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008469110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397091462] [2022-04-18 16:32:49,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,689 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,693 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 509 [2022-04-18 16:32:49,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 464 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 509 [2022-04-18 16:32:49,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,925 INFO L129 PetriNetUnfolder]: 207/1485 cut-off events. [2022-04-18 16:32:49,925 INFO L130 PetriNetUnfolder]: For 58/69 co-relation queries the response was YES. [2022-04-18 16:32:49,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 1485 events. 207/1485 cut-off events. For 58/69 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9480 event pairs, 132 based on Foata normal form. 0/1225 useless extension candidates. Maximal degree in co-relation 1676. Up to 251 conditions per place. [2022-04-18 16:32:49,945 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 21 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:32:49,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 463 transitions, 982 flow [2022-04-18 16:32:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-04-18 16:32:49,948 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9410609037328095 [2022-04-18 16:32:49,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-04-18 16:32:49,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-04-18 16:32:49,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-04-18 16:32:49,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,953 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,954 INFO L186 Difference]: Start difference. First operand has 457 places, 464 transitions, 938 flow. Second operand 3 states and 1437 transitions. [2022-04-18 16:32:49,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 463 transitions, 982 flow [2022-04-18 16:32:49,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 463 transitions, 978 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,959 INFO L242 Difference]: Finished difference. Result has 456 places, 463 transitions, 936 flow [2022-04-18 16:32:49,960 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=456, PETRI_TRANSITIONS=463} [2022-04-18 16:32:49,961 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -11 predicate places. [2022-04-18 16:32:49,961 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 463 transitions, 936 flow [2022-04-18 16:32:49,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,962 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,962 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] [2022-04-18 16:32:49,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:32:49,963 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1369999286, now seen corresponding path program 1 times [2022-04-18 16:32:49,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356614662] [2022-04-18 16:32:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,007 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 16:32:50,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356614662] [2022-04-18 16:32:50,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356614662] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995860896] [2022-04-18 16:32:50,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,011 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 509 [2022-04-18 16:32:50,012 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 463 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 509 [2022-04-18 16:32:50,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,217 INFO L129 PetriNetUnfolder]: 96/1339 cut-off events. [2022-04-18 16:32:50,218 INFO L130 PetriNetUnfolder]: For 21/47 co-relation queries the response was YES. [2022-04-18 16:32:50,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1436 conditions, 1339 events. 96/1339 cut-off events. For 21/47 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6800 event pairs, 39 based on Foata normal form. 0/1106 useless extension candidates. Maximal degree in co-relation 1354. Up to 85 conditions per place. [2022-04-18 16:32:50,236 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 15 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:32:50,236 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 462 transitions, 968 flow [2022-04-18 16:32:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:50,239 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:50,239 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:50,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:50,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:50,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,255 INFO L186 Difference]: Start difference. First operand has 456 places, 463 transitions, 936 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:50,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 462 transitions, 968 flow [2022-04-18 16:32:50,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 462 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,262 INFO L242 Difference]: Finished difference. Result has 455 places, 462 transitions, 934 flow [2022-04-18 16:32:50,263 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=455, PETRI_TRANSITIONS=462} [2022-04-18 16:32:50,265 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -12 predicate places. [2022-04-18 16:32:50,265 INFO L478 AbstractCegarLoop]: Abstraction has has 455 places, 462 transitions, 934 flow [2022-04-18 16:32:50,267 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,267 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,267 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] [2022-04-18 16:32:50,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:32:50,268 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,268 INFO L85 PathProgramCache]: Analyzing trace with hash -365116207, now seen corresponding path program 1 times [2022-04-18 16:32:50,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122619648] [2022-04-18 16:32:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,306 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 16:32:50,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122619648] [2022-04-18 16:32:50,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122619648] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589212455] [2022-04-18 16:32:50,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,310 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 509 [2022-04-18 16:32:50,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 462 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 509 [2022-04-18 16:32:50,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,485 INFO L129 PetriNetUnfolder]: 96/1308 cut-off events. [2022-04-18 16:32:50,485 INFO L130 PetriNetUnfolder]: For 21/38 co-relation queries the response was YES. [2022-04-18 16:32:50,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1308 events. 96/1308 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6595 event pairs, 39 based on Foata normal form. 0/1095 useless extension candidates. Maximal degree in co-relation 1316. Up to 85 conditions per place. [2022-04-18 16:32:50,511 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 15 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-04-18 16:32:50,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 461 transitions, 966 flow [2022-04-18 16:32:50,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:32:50,514 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9489194499017681 [2022-04-18 16:32:50,514 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:32:50,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:32:50,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:32:50,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,519 INFO L186 Difference]: Start difference. First operand has 455 places, 462 transitions, 934 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:32:50,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 461 transitions, 966 flow [2022-04-18 16:32:50,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 461 transitions, 962 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,526 INFO L242 Difference]: Finished difference. Result has 454 places, 461 transitions, 932 flow [2022-04-18 16:32:50,527 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=932, PETRI_PLACES=454, PETRI_TRANSITIONS=461} [2022-04-18 16:32:50,528 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -13 predicate places. [2022-04-18 16:32:50,528 INFO L478 AbstractCegarLoop]: Abstraction has has 454 places, 461 transitions, 932 flow [2022-04-18 16:32:50,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,529 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,529 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 16:32:50,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:32:50,529 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1579350878, now seen corresponding path program 1 times [2022-04-18 16:32:50,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535226378] [2022-04-18 16:32:50,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,561 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 16:32:50,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535226378] [2022-04-18 16:32:50,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535226378] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175162874] [2022-04-18 16:32:50,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,569 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 509 [2022-04-18 16:32:50,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 461 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 509 [2022-04-18 16:32:50,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,717 INFO L129 PetriNetUnfolder]: 53/1207 cut-off events. [2022-04-18 16:32:50,718 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:32:50,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 1207 events. 53/1207 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5432 event pairs, 8 based on Foata normal form. 0/1032 useless extension candidates. Maximal degree in co-relation 1158. Up to 31 conditions per place. [2022-04-18 16:32:50,740 INFO L132 encePairwiseOnDemand]: 505/509 looper letters, 14 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:32:50,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 463 transitions, 970 flow [2022-04-18 16:32:50,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:50,743 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:50,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:50,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:50,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:50,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,748 INFO L186 Difference]: Start difference. First operand has 454 places, 461 transitions, 932 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:50,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 463 transitions, 970 flow [2022-04-18 16:32:50,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 463 transitions, 966 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,754 INFO L242 Difference]: Finished difference. Result has 453 places, 461 transitions, 938 flow [2022-04-18 16:32:50,755 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=453, PETRI_TRANSITIONS=461} [2022-04-18 16:32:50,756 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -14 predicate places. [2022-04-18 16:32:50,756 INFO L478 AbstractCegarLoop]: Abstraction has has 453 places, 461 transitions, 938 flow [2022-04-18 16:32:50,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,757 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,757 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] [2022-04-18 16:32:50,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:32:50,757 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1632775424, now seen corresponding path program 1 times [2022-04-18 16:32:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655354797] [2022-04-18 16:32:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,783 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 16:32:50,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655354797] [2022-04-18 16:32:50,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655354797] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873954538] [2022-04-18 16:32:50,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,786 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 509 [2022-04-18 16:32:50,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 461 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 509 [2022-04-18 16:32:50,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,968 INFO L129 PetriNetUnfolder]: 58/1286 cut-off events. [2022-04-18 16:32:50,968 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:32:50,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1340 conditions, 1286 events. 58/1286 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6120 event pairs, 6 based on Foata normal form. 0/1107 useless extension candidates. Maximal degree in co-relation 1128. Up to 33 conditions per place. [2022-04-18 16:32:50,988 INFO L132 encePairwiseOnDemand]: 505/509 looper letters, 14 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:32:50,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 463 transitions, 976 flow [2022-04-18 16:32:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:50,993 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:50,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:50,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:50,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:50,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,998 INFO L186 Difference]: Start difference. First operand has 453 places, 461 transitions, 938 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:50,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 463 transitions, 976 flow [2022-04-18 16:32:51,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 463 transitions, 976 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:51,004 INFO L242 Difference]: Finished difference. Result has 454 places, 461 transitions, 948 flow [2022-04-18 16:32:51,005 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=948, PETRI_PLACES=454, PETRI_TRANSITIONS=461} [2022-04-18 16:32:51,005 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -13 predicate places. [2022-04-18 16:32:51,005 INFO L478 AbstractCegarLoop]: Abstraction has has 454 places, 461 transitions, 948 flow [2022-04-18 16:32:51,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,006 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,006 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 16:32:51,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:32:51,007 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash 759674313, now seen corresponding path program 1 times [2022-04-18 16:32:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904386701] [2022-04-18 16:32:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,030 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 16:32:51,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904386701] [2022-04-18 16:32:51,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904386701] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286584901] [2022-04-18 16:32:51,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,034 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 509 [2022-04-18 16:32:51,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 461 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 509 [2022-04-18 16:32:51,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,253 INFO L129 PetriNetUnfolder]: 101/1975 cut-off events. [2022-04-18 16:32:51,253 INFO L130 PetriNetUnfolder]: For 5/9 co-relation queries the response was YES. [2022-04-18 16:32:51,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1975 events. 101/1975 cut-off events. For 5/9 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 13848 event pairs, 11 based on Foata normal form. 0/1688 useless extension candidates. Maximal degree in co-relation 1749. Up to 43 conditions per place. [2022-04-18 16:32:51,287 INFO L132 encePairwiseOnDemand]: 505/509 looper letters, 14 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:32:51,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 463 transitions, 986 flow [2022-04-18 16:32:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:51,290 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:51,290 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:51,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:51,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:51,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,295 INFO L186 Difference]: Start difference. First operand has 454 places, 461 transitions, 948 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:51,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 463 transitions, 986 flow [2022-04-18 16:32:51,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 463 transitions, 986 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:51,300 INFO L242 Difference]: Finished difference. Result has 455 places, 461 transitions, 958 flow [2022-04-18 16:32:51,301 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=455, PETRI_TRANSITIONS=461} [2022-04-18 16:32:51,302 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -12 predicate places. [2022-04-18 16:32:51,302 INFO L478 AbstractCegarLoop]: Abstraction has has 455 places, 461 transitions, 958 flow [2022-04-18 16:32:51,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,303 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,303 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] [2022-04-18 16:32:51,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:32:51,303 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -97384917, now seen corresponding path program 1 times [2022-04-18 16:32:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003452604] [2022-04-18 16:32:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,334 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 16:32:51,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003452604] [2022-04-18 16:32:51,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003452604] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543174596] [2022-04-18 16:32:51,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,336 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,337 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 509 [2022-04-18 16:32:51,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 461 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 509 [2022-04-18 16:32:51,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,525 INFO L129 PetriNetUnfolder]: 90/1549 cut-off events. [2022-04-18 16:32:51,525 INFO L130 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-04-18 16:32:51,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 1549 events. 90/1549 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9816 event pairs, 5 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 1430. Up to 50 conditions per place. [2022-04-18 16:32:51,551 INFO L132 encePairwiseOnDemand]: 505/509 looper letters, 14 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:32:51,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 463 transitions, 996 flow [2022-04-18 16:32:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:51,554 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:51,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:51,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:51,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:51,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,558 INFO L186 Difference]: Start difference. First operand has 455 places, 461 transitions, 958 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:51,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 463 transitions, 996 flow [2022-04-18 16:32:51,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 463 transitions, 996 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:51,565 INFO L242 Difference]: Finished difference. Result has 456 places, 461 transitions, 968 flow [2022-04-18 16:32:51,566 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=968, PETRI_PLACES=456, PETRI_TRANSITIONS=461} [2022-04-18 16:32:51,566 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -11 predicate places. [2022-04-18 16:32:51,566 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 461 transitions, 968 flow [2022-04-18 16:32:51,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,567 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,567 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 16:32:51,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:32:51,567 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:51,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,568 INFO L85 PathProgramCache]: Analyzing trace with hash 967234504, now seen corresponding path program 1 times [2022-04-18 16:32:51,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394466122] [2022-04-18 16:32:51,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,669 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 16:32:51,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394466122] [2022-04-18 16:32:51,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394466122] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:51,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501246712] [2022-04-18 16:32:51,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:51,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:51,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:51,673 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 509 [2022-04-18 16:32:51,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 461 transitions, 968 flow. Second operand has 6 states, 6 states have (on average 467.0) internal successors, (2802), 6 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 509 [2022-04-18 16:32:51,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,840 INFO L129 PetriNetUnfolder]: 33/814 cut-off events. [2022-04-18 16:32:51,841 INFO L130 PetriNetUnfolder]: For 3/25 co-relation queries the response was YES. [2022-04-18 16:32:51,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 814 events. 33/814 cut-off events. For 3/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3463 event pairs, 0 based on Foata normal form. 12/724 useless extension candidates. Maximal degree in co-relation 684. Up to 31 conditions per place. [2022-04-18 16:32:51,855 INFO L132 encePairwiseOnDemand]: 504/509 looper letters, 23 selfloop transitions, 4 changer transitions 0/460 dead transitions. [2022-04-18 16:32:51,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 460 transitions, 1020 flow [2022-04-18 16:32:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:51,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2818 transitions. [2022-04-18 16:32:51,859 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.922724296005239 [2022-04-18 16:32:51,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2818 transitions. [2022-04-18 16:32:51,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2818 transitions. [2022-04-18 16:32:51,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2818 transitions. [2022-04-18 16:32:51,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 469.6666666666667) internal successors, (2818), 6 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 509.0) internal successors, (3563), 7 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,867 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 509.0) internal successors, (3563), 7 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,867 INFO L186 Difference]: Start difference. First operand has 456 places, 461 transitions, 968 flow. Second operand 6 states and 2818 transitions. [2022-04-18 16:32:51,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 460 transitions, 1020 flow [2022-04-18 16:32:51,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 460 transitions, 1020 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:51,873 INFO L242 Difference]: Finished difference. Result has 460 places, 460 transitions, 974 flow [2022-04-18 16:32:51,874 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=966, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=974, PETRI_PLACES=460, PETRI_TRANSITIONS=460} [2022-04-18 16:32:51,874 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -7 predicate places. [2022-04-18 16:32:51,874 INFO L478 AbstractCegarLoop]: Abstraction has has 460 places, 460 transitions, 974 flow [2022-04-18 16:32:51,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 467.0) internal successors, (2802), 6 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,875 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,875 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 16:32:51,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:32:51,875 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:51,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash 828077499, now seen corresponding path program 1 times [2022-04-18 16:32:51,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779795765] [2022-04-18 16:32:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,901 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 16:32:51,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779795765] [2022-04-18 16:32:51,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779795765] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213735482] [2022-04-18 16:32:51,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,902 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,904 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 509 [2022-04-18 16:32:51,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 460 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 509 [2022-04-18 16:32:51,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,194 INFO L129 PetriNetUnfolder]: 133/2075 cut-off events. [2022-04-18 16:32:52,195 INFO L130 PetriNetUnfolder]: For 19/25 co-relation queries the response was YES. [2022-04-18 16:32:52,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2197 conditions, 2075 events. 133/2075 cut-off events. For 19/25 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 13140 event pairs, 18 based on Foata normal form. 0/1754 useless extension candidates. Maximal degree in co-relation 1986. Up to 70 conditions per place. [2022-04-18 16:32:52,218 INFO L132 encePairwiseOnDemand]: 505/509 looper letters, 14 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:32:52,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 462 transitions, 1012 flow [2022-04-18 16:32:52,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:52,221 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:52,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:52,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:52,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:52,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,227 INFO L186 Difference]: Start difference. First operand has 460 places, 460 transitions, 974 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:52,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 462 transitions, 1012 flow [2022-04-18 16:32:52,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 462 transitions, 1005 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:52,233 INFO L242 Difference]: Finished difference. Result has 457 places, 460 transitions, 977 flow [2022-04-18 16:32:52,233 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=977, PETRI_PLACES=457, PETRI_TRANSITIONS=460} [2022-04-18 16:32:52,234 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -10 predicate places. [2022-04-18 16:32:52,234 INFO L478 AbstractCegarLoop]: Abstraction has has 457 places, 460 transitions, 977 flow [2022-04-18 16:32:52,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,235 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,235 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 16:32:52,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:32:52,235 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:52,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1213568477, now seen corresponding path program 1 times [2022-04-18 16:32:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366120390] [2022-04-18 16:32:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,267 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 16:32:52,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366120390] [2022-04-18 16:32:52,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366120390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:52,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040615404] [2022-04-18 16:32:52,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:52,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:52,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:52,273 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 509 [2022-04-18 16:32:52,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 460 transitions, 977 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 509 [2022-04-18 16:32:52,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,569 INFO L129 PetriNetUnfolder]: 154/2311 cut-off events. [2022-04-18 16:32:52,570 INFO L130 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2022-04-18 16:32:52,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2454 conditions, 2311 events. 154/2311 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 15256 event pairs, 19 based on Foata normal form. 0/1963 useless extension candidates. Maximal degree in co-relation 2249. Up to 80 conditions per place. [2022-04-18 16:32:52,603 INFO L132 encePairwiseOnDemand]: 505/509 looper letters, 14 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:32:52,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 462 transitions, 1015 flow [2022-04-18 16:32:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:52,637 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:52,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:52,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:52,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:52,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,642 INFO L186 Difference]: Start difference. First operand has 457 places, 460 transitions, 977 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:52,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 462 transitions, 1015 flow [2022-04-18 16:32:52,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 462 transitions, 1015 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:52,649 INFO L242 Difference]: Finished difference. Result has 458 places, 460 transitions, 987 flow [2022-04-18 16:32:52,650 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=987, PETRI_PLACES=458, PETRI_TRANSITIONS=460} [2022-04-18 16:32:52,650 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -9 predicate places. [2022-04-18 16:32:52,650 INFO L478 AbstractCegarLoop]: Abstraction has has 458 places, 460 transitions, 987 flow [2022-04-18 16:32:52,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,652 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,652 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:52,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:32:52,653 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:52,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,653 INFO L85 PathProgramCache]: Analyzing trace with hash 333122242, now seen corresponding path program 1 times [2022-04-18 16:32:52,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155026579] [2022-04-18 16:32:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,677 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 16:32:52,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155026579] [2022-04-18 16:32:52,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155026579] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:52,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56427106] [2022-04-18 16:32:52,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,679 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:52,681 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 509 [2022-04-18 16:32:52,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 460 transitions, 987 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 509 [2022-04-18 16:32:52,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,998 INFO L129 PetriNetUnfolder]: 323/2680 cut-off events. [2022-04-18 16:32:52,998 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-04-18 16:32:53,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3068 conditions, 2680 events. 323/2680 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 20130 event pairs, 84 based on Foata normal form. 0/2247 useless extension candidates. Maximal degree in co-relation 2722. Up to 293 conditions per place. [2022-04-18 16:32:53,040 INFO L132 encePairwiseOnDemand]: 503/509 looper letters, 18 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2022-04-18 16:32:53,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 460 transitions, 1029 flow [2022-04-18 16:32:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1446 transitions. [2022-04-18 16:32:53,043 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9469548133595285 [2022-04-18 16:32:53,044 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1446 transitions. [2022-04-18 16:32:53,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1446 transitions. [2022-04-18 16:32:53,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:53,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1446 transitions. [2022-04-18 16:32:53,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,048 INFO L186 Difference]: Start difference. First operand has 458 places, 460 transitions, 987 flow. Second operand 3 states and 1446 transitions. [2022-04-18 16:32:53,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 460 transitions, 1029 flow [2022-04-18 16:32:53,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 460 transitions, 1029 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:53,094 INFO L242 Difference]: Finished difference. Result has 457 places, 458 transitions, 993 flow [2022-04-18 16:32:53,094 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=993, PETRI_PLACES=457, PETRI_TRANSITIONS=458} [2022-04-18 16:32:53,095 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -10 predicate places. [2022-04-18 16:32:53,095 INFO L478 AbstractCegarLoop]: Abstraction has has 457 places, 458 transitions, 993 flow [2022-04-18 16:32:53,095 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,095 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:53,095 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:53,096 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:32:53,096 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:53,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1992033308, now seen corresponding path program 1 times [2022-04-18 16:32:53,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:53,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441480049] [2022-04-18 16:32:53,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:53,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:53,117 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 16:32:53,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:53,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441480049] [2022-04-18 16:32:53,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441480049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:53,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:53,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:53,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157365403] [2022-04-18 16:32:53,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:53,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:53,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:53,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:53,121 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 509 [2022-04-18 16:32:53,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 458 transitions, 993 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:53,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 509 [2022-04-18 16:32:53,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:53,423 INFO L129 PetriNetUnfolder]: 237/2136 cut-off events. [2022-04-18 16:32:53,423 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-04-18 16:32:53,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2438 conditions, 2136 events. 237/2136 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14761 event pairs, 28 based on Foata normal form. 0/1842 useless extension candidates. Maximal degree in co-relation 2091. Up to 152 conditions per place. [2022-04-18 16:32:53,458 INFO L132 encePairwiseOnDemand]: 503/509 looper letters, 18 selfloop transitions, 2 changer transitions 0/458 dead transitions. [2022-04-18 16:32:53,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 458 transitions, 1035 flow [2022-04-18 16:32:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1446 transitions. [2022-04-18 16:32:53,461 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9469548133595285 [2022-04-18 16:32:53,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1446 transitions. [2022-04-18 16:32:53,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1446 transitions. [2022-04-18 16:32:53,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:53,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1446 transitions. [2022-04-18 16:32:53,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,466 INFO L186 Difference]: Start difference. First operand has 457 places, 458 transitions, 993 flow. Second operand 3 states and 1446 transitions. [2022-04-18 16:32:53,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 458 transitions, 1035 flow [2022-04-18 16:32:53,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 458 transitions, 1035 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:53,472 INFO L242 Difference]: Finished difference. Result has 456 places, 456 transitions, 999 flow [2022-04-18 16:32:53,472 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=999, PETRI_PLACES=456, PETRI_TRANSITIONS=456} [2022-04-18 16:32:53,472 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -11 predicate places. [2022-04-18 16:32:53,472 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 456 transitions, 999 flow [2022-04-18 16:32:53,473 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,473 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:53,473 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:53,473 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:32:53,473 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:53,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:53,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1599280435, now seen corresponding path program 1 times [2022-04-18 16:32:53,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:53,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565862357] [2022-04-18 16:32:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:53,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:53,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:53,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:53,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565862357] [2022-04-18 16:32:53,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565862357] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:53,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:53,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:53,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677060129] [2022-04-18 16:32:53,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:53,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:53,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:53,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:53,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:53,502 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 509 [2022-04-18 16:32:53,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 456 transitions, 999 flow. Second operand has 3 states, 3 states have (on average 482.3333333333333) internal successors, (1447), 3 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:53,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 509 [2022-04-18 16:32:53,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:53,773 INFO L129 PetriNetUnfolder]: 132/1941 cut-off events. [2022-04-18 16:32:53,773 INFO L130 PetriNetUnfolder]: For 5/15 co-relation queries the response was YES. [2022-04-18 16:32:53,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2165 conditions, 1941 events. 132/1941 cut-off events. For 5/15 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11941 event pairs, 8 based on Foata normal form. 1/1715 useless extension candidates. Maximal degree in co-relation 1800. Up to 38 conditions per place. [2022-04-18 16:32:53,806 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 13 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2022-04-18 16:32:53,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 457 transitions, 1033 flow [2022-04-18 16:32:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:53,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1459 transitions. [2022-04-18 16:32:53,809 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9554682383759004 [2022-04-18 16:32:53,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1459 transitions. [2022-04-18 16:32:53,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1459 transitions. [2022-04-18 16:32:53,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:53,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1459 transitions. [2022-04-18 16:32:53,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,817 INFO L186 Difference]: Start difference. First operand has 456 places, 456 transitions, 999 flow. Second operand 3 states and 1459 transitions. [2022-04-18 16:32:53,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 457 transitions, 1033 flow [2022-04-18 16:32:53,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 457 transitions, 1033 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:53,825 INFO L242 Difference]: Finished difference. Result has 457 places, 455 transitions, 1001 flow [2022-04-18 16:32:53,826 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1001, PETRI_PLACES=457, PETRI_TRANSITIONS=455} [2022-04-18 16:32:53,827 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -10 predicate places. [2022-04-18 16:32:53,827 INFO L478 AbstractCegarLoop]: Abstraction has has 457 places, 455 transitions, 1001 flow [2022-04-18 16:32:53,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.3333333333333) internal successors, (1447), 3 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,828 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:53,828 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:53,828 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:32:53,828 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:53,829 INFO L85 PathProgramCache]: Analyzing trace with hash -444329457, now seen corresponding path program 1 times [2022-04-18 16:32:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:53,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806507519] [2022-04-18 16:32:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:53,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:53,853 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 16:32:53,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:53,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806507519] [2022-04-18 16:32:53,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806507519] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:53,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:53,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:53,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897915118] [2022-04-18 16:32:53,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:53,854 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:53,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:53,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:53,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:53,856 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 509 [2022-04-18 16:32:53,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 455 transitions, 1001 flow. Second operand has 3 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:53,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 509 [2022-04-18 16:32:53,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:54,277 INFO L129 PetriNetUnfolder]: 393/2813 cut-off events. [2022-04-18 16:32:54,277 INFO L130 PetriNetUnfolder]: For 49/53 co-relation queries the response was YES. [2022-04-18 16:32:54,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3302 conditions, 2813 events. 393/2813 cut-off events. For 49/53 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 20159 event pairs, 76 based on Foata normal form. 0/2448 useless extension candidates. Maximal degree in co-relation 3069. Up to 346 conditions per place. [2022-04-18 16:32:54,346 INFO L132 encePairwiseOnDemand]: 503/509 looper letters, 18 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2022-04-18 16:32:54,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 455 transitions, 1043 flow [2022-04-18 16:32:54,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1446 transitions. [2022-04-18 16:32:54,356 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9469548133595285 [2022-04-18 16:32:54,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1446 transitions. [2022-04-18 16:32:54,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1446 transitions. [2022-04-18 16:32:54,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:54,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1446 transitions. [2022-04-18 16:32:54,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,362 INFO L186 Difference]: Start difference. First operand has 457 places, 455 transitions, 1001 flow. Second operand 3 states and 1446 transitions. [2022-04-18 16:32:54,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 455 transitions, 1043 flow [2022-04-18 16:32:54,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 455 transitions, 1039 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:54,368 INFO L242 Difference]: Finished difference. Result has 454 places, 453 transitions, 1003 flow [2022-04-18 16:32:54,369 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1003, PETRI_PLACES=454, PETRI_TRANSITIONS=453} [2022-04-18 16:32:54,369 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -13 predicate places. [2022-04-18 16:32:54,369 INFO L478 AbstractCegarLoop]: Abstraction has has 454 places, 453 transitions, 1003 flow [2022-04-18 16:32:54,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,370 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:54,370 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:54,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:32:54,370 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:54,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:54,371 INFO L85 PathProgramCache]: Analyzing trace with hash 924876088, now seen corresponding path program 1 times [2022-04-18 16:32:54,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:54,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223342878] [2022-04-18 16:32:54,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:54,398 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 16:32:54,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:54,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223342878] [2022-04-18 16:32:54,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223342878] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:54,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:54,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:54,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351490965] [2022-04-18 16:32:54,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:54,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:54,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:54,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:54,402 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 509 [2022-04-18 16:32:54,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 453 transitions, 1003 flow. Second operand has 3 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:54,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 509 [2022-04-18 16:32:54,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:54,693 INFO L129 PetriNetUnfolder]: 153/2053 cut-off events. [2022-04-18 16:32:54,694 INFO L130 PetriNetUnfolder]: For 9/21 co-relation queries the response was YES. [2022-04-18 16:32:54,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2303 conditions, 2053 events. 153/2053 cut-off events. For 9/21 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12630 event pairs, 6 based on Foata normal form. 1/1843 useless extension candidates. Maximal degree in co-relation 2059. Up to 48 conditions per place. [2022-04-18 16:32:54,725 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 13 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2022-04-18 16:32:54,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 454 transitions, 1037 flow [2022-04-18 16:32:54,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1459 transitions. [2022-04-18 16:32:54,738 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9554682383759004 [2022-04-18 16:32:54,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1459 transitions. [2022-04-18 16:32:54,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1459 transitions. [2022-04-18 16:32:54,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:54,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1459 transitions. [2022-04-18 16:32:54,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,742 INFO L186 Difference]: Start difference. First operand has 454 places, 453 transitions, 1003 flow. Second operand 3 states and 1459 transitions. [2022-04-18 16:32:54,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 454 transitions, 1037 flow [2022-04-18 16:32:54,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 454 transitions, 1037 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:54,748 INFO L242 Difference]: Finished difference. Result has 455 places, 452 transitions, 1005 flow [2022-04-18 16:32:54,748 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1005, PETRI_PLACES=455, PETRI_TRANSITIONS=452} [2022-04-18 16:32:54,749 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -12 predicate places. [2022-04-18 16:32:54,749 INFO L478 AbstractCegarLoop]: Abstraction has has 455 places, 452 transitions, 1005 flow [2022-04-18 16:32:54,749 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,749 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:54,749 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:54,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:32:54,750 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:54,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:54,750 INFO L85 PathProgramCache]: Analyzing trace with hash -65499244, now seen corresponding path program 1 times [2022-04-18 16:32:54,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:54,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650779172] [2022-04-18 16:32:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:54,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:54,773 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 16:32:54,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:54,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650779172] [2022-04-18 16:32:54,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650779172] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:54,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:54,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:54,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320680455] [2022-04-18 16:32:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:54,774 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:54,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:54,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:54,776 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 509 [2022-04-18 16:32:54,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 452 transitions, 1005 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:54,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 509 [2022-04-18 16:32:54,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:54,994 INFO L129 PetriNetUnfolder]: 146/1701 cut-off events. [2022-04-18 16:32:54,994 INFO L130 PetriNetUnfolder]: For 33/39 co-relation queries the response was YES. [2022-04-18 16:32:55,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1701 events. 146/1701 cut-off events. For 33/39 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9952 event pairs, 14 based on Foata normal form. 0/1540 useless extension candidates. Maximal degree in co-relation 1918. Up to 77 conditions per place. [2022-04-18 16:32:55,016 INFO L132 encePairwiseOnDemand]: 506/509 looper letters, 12 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2022-04-18 16:32:55,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 453 transitions, 1037 flow [2022-04-18 16:32:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-04-18 16:32:55,019 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9548133595284872 [2022-04-18 16:32:55,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-04-18 16:32:55,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-04-18 16:32:55,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:55,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-04-18 16:32:55,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,023 INFO L186 Difference]: Start difference. First operand has 455 places, 452 transitions, 1005 flow. Second operand 3 states and 1458 transitions. [2022-04-18 16:32:55,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 453 transitions, 1037 flow [2022-04-18 16:32:55,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 453 transitions, 1033 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:55,028 INFO L242 Difference]: Finished difference. Result has 454 places, 451 transitions, 1003 flow [2022-04-18 16:32:55,029 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1003, PETRI_PLACES=454, PETRI_TRANSITIONS=451} [2022-04-18 16:32:55,029 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -13 predicate places. [2022-04-18 16:32:55,029 INFO L478 AbstractCegarLoop]: Abstraction has has 454 places, 451 transitions, 1003 flow [2022-04-18 16:32:55,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,030 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:55,030 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:55,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:32:55,030 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:55,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1893246008, now seen corresponding path program 1 times [2022-04-18 16:32:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:55,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512493768] [2022-04-18 16:32:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:55,109 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 16:32:55,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:55,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512493768] [2022-04-18 16:32:55,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512493768] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:55,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:55,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:55,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186114767] [2022-04-18 16:32:55,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:55,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:55,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:55,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:55,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:55,113 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 509 [2022-04-18 16:32:55,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 451 transitions, 1003 flow. Second operand has 6 states, 6 states have (on average 468.0) internal successors, (2808), 6 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:55,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 509 [2022-04-18 16:32:55,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:55,348 INFO L129 PetriNetUnfolder]: 118/1544 cut-off events. [2022-04-18 16:32:55,348 INFO L130 PetriNetUnfolder]: For 5/57 co-relation queries the response was YES. [2022-04-18 16:32:55,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1786 conditions, 1544 events. 118/1544 cut-off events. For 5/57 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8459 event pairs, 0 based on Foata normal form. 8/1410 useless extension candidates. Maximal degree in co-relation 1647. Up to 38 conditions per place. [2022-04-18 16:32:55,376 INFO L132 encePairwiseOnDemand]: 504/509 looper letters, 22 selfloop transitions, 4 changer transitions 0/450 dead transitions. [2022-04-18 16:32:55,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 450 transitions, 1053 flow [2022-04-18 16:32:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:55,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2817 transitions. [2022-04-18 16:32:55,380 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9223968565815324 [2022-04-18 16:32:55,381 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2817 transitions. [2022-04-18 16:32:55,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2817 transitions. [2022-04-18 16:32:55,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:55,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2817 transitions. [2022-04-18 16:32:55,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 469.5) internal successors, (2817), 6 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 509.0) internal successors, (3563), 7 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,387 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 509.0) internal successors, (3563), 7 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,387 INFO L186 Difference]: Start difference. First operand has 454 places, 451 transitions, 1003 flow. Second operand 6 states and 2817 transitions. [2022-04-18 16:32:55,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 450 transitions, 1053 flow [2022-04-18 16:32:55,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 450 transitions, 1049 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:55,394 INFO L242 Difference]: Finished difference. Result has 456 places, 450 transitions, 1005 flow [2022-04-18 16:32:55,394 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1005, PETRI_PLACES=456, PETRI_TRANSITIONS=450} [2022-04-18 16:32:55,395 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -11 predicate places. [2022-04-18 16:32:55,395 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 450 transitions, 1005 flow [2022-04-18 16:32:55,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 468.0) internal successors, (2808), 6 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,396 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:55,396 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:55,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:32:55,396 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:55,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash 132844494, now seen corresponding path program 1 times [2022-04-18 16:32:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:55,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361270259] [2022-04-18 16:32:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:55,473 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 16:32:55,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:55,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361270259] [2022-04-18 16:32:55,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361270259] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:55,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:55,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:55,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879737197] [2022-04-18 16:32:55,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:55,475 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:55,477 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 509 [2022-04-18 16:32:55,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 450 transitions, 1005 flow. Second operand has 6 states, 6 states have (on average 469.0) internal successors, (2814), 6 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:55,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 509 [2022-04-18 16:32:55,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:55,720 INFO L129 PetriNetUnfolder]: 118/1543 cut-off events. [2022-04-18 16:32:55,720 INFO L130 PetriNetUnfolder]: For 8/61 co-relation queries the response was YES. [2022-04-18 16:32:55,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1756 conditions, 1543 events. 118/1543 cut-off events. For 8/61 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8455 event pairs, 0 based on Foata normal form. 4/1406 useless extension candidates. Maximal degree in co-relation 1670. Up to 38 conditions per place. [2022-04-18 16:32:55,733 INFO L132 encePairwiseOnDemand]: 504/509 looper letters, 21 selfloop transitions, 4 changer transitions 0/449 dead transitions. [2022-04-18 16:32:55,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 449 transitions, 1053 flow [2022-04-18 16:32:55,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2816 transitions. [2022-04-18 16:32:55,737 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9220694171578258 [2022-04-18 16:32:55,737 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2816 transitions. [2022-04-18 16:32:55,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2816 transitions. [2022-04-18 16:32:55,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:55,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2816 transitions. [2022-04-18 16:32:55,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 469.3333333333333) internal successors, (2816), 6 states have internal predecessors, (2816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 509.0) internal successors, (3563), 7 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 509.0) internal successors, (3563), 7 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,744 INFO L186 Difference]: Start difference. First operand has 456 places, 450 transitions, 1005 flow. Second operand 6 states and 2816 transitions. [2022-04-18 16:32:55,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 449 transitions, 1053 flow [2022-04-18 16:32:55,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 449 transitions, 1046 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:55,749 INFO L242 Difference]: Finished difference. Result has 456 places, 449 transitions, 1004 flow [2022-04-18 16:32:55,750 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1004, PETRI_PLACES=456, PETRI_TRANSITIONS=449} [2022-04-18 16:32:55,750 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -11 predicate places. [2022-04-18 16:32:55,750 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 449 transitions, 1004 flow [2022-04-18 16:32:55,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 469.0) internal successors, (2814), 6 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,751 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:55,751 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:55,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:32:55,751 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:55,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:55,751 INFO L85 PathProgramCache]: Analyzing trace with hash -410024330, now seen corresponding path program 1 times [2022-04-18 16:32:55,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:55,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618902323] [2022-04-18 16:32:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:55,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:55,795 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 16:32:55,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:55,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618902323] [2022-04-18 16:32:55,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618902323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:55,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:55,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960270142] [2022-04-18 16:32:55,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:55,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:55,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:55,798 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 509 [2022-04-18 16:32:55,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 449 transitions, 1004 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:55,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 509 [2022-04-18 16:32:55,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:56,040 INFO L129 PetriNetUnfolder]: 154/2065 cut-off events. [2022-04-18 16:32:56,040 INFO L130 PetriNetUnfolder]: For 5/14 co-relation queries the response was YES. [2022-04-18 16:32:56,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 2065 events. 154/2065 cut-off events. For 5/14 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 12588 event pairs, 8 based on Foata normal form. 0/1880 useless extension candidates. Maximal degree in co-relation 2282. Up to 50 conditions per place. [2022-04-18 16:32:56,070 INFO L132 encePairwiseOnDemand]: 507/509 looper letters, 9 selfloop transitions, 1 changer transitions 0/448 dead transitions. [2022-04-18 16:32:56,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 448 transitions, 1022 flow [2022-04-18 16:32:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:56,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1460 transitions. [2022-04-18 16:32:56,073 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9561231172233137 [2022-04-18 16:32:56,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1460 transitions. [2022-04-18 16:32:56,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1460 transitions. [2022-04-18 16:32:56,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:56,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1460 transitions. [2022-04-18 16:32:56,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.6666666666667) internal successors, (1460), 3 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,077 INFO L186 Difference]: Start difference. First operand has 456 places, 449 transitions, 1004 flow. Second operand 3 states and 1460 transitions. [2022-04-18 16:32:56,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 448 transitions, 1022 flow [2022-04-18 16:32:56,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 448 transitions, 1015 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:56,083 INFO L242 Difference]: Finished difference. Result has 453 places, 448 transitions, 997 flow [2022-04-18 16:32:56,083 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=995, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=997, PETRI_PLACES=453, PETRI_TRANSITIONS=448} [2022-04-18 16:32:56,084 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -14 predicate places. [2022-04-18 16:32:56,084 INFO L478 AbstractCegarLoop]: Abstraction has has 453 places, 448 transitions, 997 flow [2022-04-18 16:32:56,084 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,084 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:56,084 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:56,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 16:32:56,085 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:56,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:56,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1827342436, now seen corresponding path program 1 times [2022-04-18 16:32:56,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:56,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079054105] [2022-04-18 16:32:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:56,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:56,129 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 16:32:56,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:56,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079054105] [2022-04-18 16:32:56,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079054105] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:56,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:56,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:56,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969647163] [2022-04-18 16:32:56,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:56,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:56,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:56,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:56,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:56,132 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 509 [2022-04-18 16:32:56,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 448 transitions, 997 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:56,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 509 [2022-04-18 16:32:56,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:56,405 INFO L129 PetriNetUnfolder]: 146/2017 cut-off events. [2022-04-18 16:32:56,405 INFO L130 PetriNetUnfolder]: For 7/15 co-relation queries the response was YES. [2022-04-18 16:32:56,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2253 conditions, 2017 events. 146/2017 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 12156 event pairs, 6 based on Foata normal form. 0/1838 useless extension candidates. Maximal degree in co-relation 2222. Up to 48 conditions per place. [2022-04-18 16:32:56,425 INFO L132 encePairwiseOnDemand]: 507/509 looper letters, 9 selfloop transitions, 1 changer transitions 0/447 dead transitions. [2022-04-18 16:32:56,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 447 transitions, 1015 flow [2022-04-18 16:32:56,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1460 transitions. [2022-04-18 16:32:56,427 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9561231172233137 [2022-04-18 16:32:56,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1460 transitions. [2022-04-18 16:32:56,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1460 transitions. [2022-04-18 16:32:56,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:56,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1460 transitions. [2022-04-18 16:32:56,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.6666666666667) internal successors, (1460), 3 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,431 INFO L186 Difference]: Start difference. First operand has 453 places, 448 transitions, 997 flow. Second operand 3 states and 1460 transitions. [2022-04-18 16:32:56,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 447 transitions, 1015 flow [2022-04-18 16:32:56,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 447 transitions, 1014 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:56,437 INFO L242 Difference]: Finished difference. Result has 453 places, 447 transitions, 996 flow [2022-04-18 16:32:56,437 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=996, PETRI_PLACES=453, PETRI_TRANSITIONS=447} [2022-04-18 16:32:56,438 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -14 predicate places. [2022-04-18 16:32:56,438 INFO L478 AbstractCegarLoop]: Abstraction has has 453 places, 447 transitions, 996 flow [2022-04-18 16:32:56,438 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,438 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:56,439 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:56,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 16:32:56,439 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 16:32:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:56,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1986719698, now seen corresponding path program 1 times [2022-04-18 16:32:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:56,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169844537] [2022-04-18 16:32:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:56,485 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 16:32:56,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:56,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169844537] [2022-04-18 16:32:56,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169844537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:56,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:56,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:56,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841487036] [2022-04-18 16:32:56,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:56,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:56,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:56,488 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 509 [2022-04-18 16:32:56,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 447 transitions, 996 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:56,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 509 [2022-04-18 16:32:56,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:56,692 INFO L129 PetriNetUnfolder]: 131/1669 cut-off events. [2022-04-18 16:32:56,693 INFO L130 PetriNetUnfolder]: For 19/25 co-relation queries the response was YES. [2022-04-18 16:32:56,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1669 events. 131/1669 cut-off events. For 19/25 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9479 event pairs, 14 based on Foata normal form. 2/1524 useless extension candidates. Maximal degree in co-relation 1902. Up to 75 conditions per place. [2022-04-18 16:32:56,717 INFO L132 encePairwiseOnDemand]: 507/509 looper letters, 0 selfloop transitions, 0 changer transitions 446/446 dead transitions. [2022-04-18 16:32:56,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 446 transitions, 1012 flow [2022-04-18 16:32:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:56,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:56,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1459 transitions. [2022-04-18 16:32:56,720 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9554682383759004 [2022-04-18 16:32:56,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1459 transitions. [2022-04-18 16:32:56,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1459 transitions. [2022-04-18 16:32:56,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:56,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1459 transitions. [2022-04-18 16:32:56,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,723 INFO L186 Difference]: Start difference. First operand has 453 places, 447 transitions, 996 flow. Second operand 3 states and 1459 transitions. [2022-04-18 16:32:56,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 446 transitions, 1012 flow [2022-04-18 16:32:56,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 446 transitions, 1011 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:56,728 INFO L242 Difference]: Finished difference. Result has 453 places, 0 transitions, 0 flow [2022-04-18 16:32:56,728 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=453, PETRI_TRANSITIONS=0} [2022-04-18 16:32:56,729 INFO L335 CegarLoopForPetriNet]: 467 programPoint places, -14 predicate places. [2022-04-18 16:32:56,729 INFO L478 AbstractCegarLoop]: Abstraction has has 453 places, 0 transitions, 0 flow [2022-04-18 16:32:56,729 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,731 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (71 of 72 remaining) [2022-04-18 16:32:56,731 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (70 of 72 remaining) [2022-04-18 16:32:56,732 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (69 of 72 remaining) [2022-04-18 16:32:56,732 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (68 of 72 remaining) [2022-04-18 16:32:56,732 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (67 of 72 remaining) [2022-04-18 16:32:56,732 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (66 of 72 remaining) [2022-04-18 16:32:56,732 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (65 of 72 remaining) [2022-04-18 16:32:56,732 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (64 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (63 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (62 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (61 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (60 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (58 of 72 remaining) [2022-04-18 16:32:56,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (57 of 72 remaining) [2022-04-18 16:32:56,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (56 of 72 remaining) [2022-04-18 16:32:56,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (55 of 72 remaining) [2022-04-18 16:32:56,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (54 of 72 remaining) [2022-04-18 16:32:56,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (53 of 72 remaining) [2022-04-18 16:32:56,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (52 of 72 remaining) [2022-04-18 16:32:56,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (51 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (50 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (49 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (48 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (47 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (46 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (45 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 72 remaining) [2022-04-18 16:32:56,735 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (39 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (37 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (36 of 72 remaining) [2022-04-18 16:32:56,736 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (35 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (34 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (33 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (32 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (31 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (30 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 72 remaining) [2022-04-18 16:32:56,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 72 remaining) [2022-04-18 16:32:56,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 72 remaining) [2022-04-18 16:32:56,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 72 remaining) [2022-04-18 16:32:56,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 72 remaining) [2022-04-18 16:32:56,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 72 remaining) [2022-04-18 16:32:56,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 72 remaining) [2022-04-18 16:32:56,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 72 remaining) [2022-04-18 16:32:56,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 16:32:56,744 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:56,751 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:32:56,751 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:32:56,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:32:56 BasicIcfg [2022-04-18 16:32:56,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:32:56,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:32:56,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:32:56,768 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:32:56,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:46" (3/4) ... [2022-04-18 16:32:56,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:32:56,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:32:56,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:32:56,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:32:56,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-04-18 16:32:56,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:32:56,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:32:56,795 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:32:56,835 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:32:56,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:32:56,836 INFO L158 Benchmark]: Toolchain (without parser) took 10753.75ms. Allocated memory was 163.6MB in the beginning and 771.8MB in the end (delta: 608.2MB). Free memory was 131.2MB in the beginning and 494.4MB in the end (delta: -363.2MB). Peak memory consumption was 244.6MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,836 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:32:56,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.31ms. Allocated memory is still 163.6MB. Free memory was 131.2MB in the beginning and 133.5MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 163.6MB. Free memory was 133.5MB in the beginning and 130.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,837 INFO L158 Benchmark]: Boogie Preprocessor took 30.90ms. Allocated memory is still 163.6MB. Free memory was 130.0MB in the beginning and 128.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,837 INFO L158 Benchmark]: RCFGBuilder took 558.83ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 101.3MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,837 INFO L158 Benchmark]: TraceAbstraction took 9816.56ms. Allocated memory was 163.6MB in the beginning and 771.8MB in the end (delta: 608.2MB). Free memory was 100.7MB in the beginning and 498.6MB in the end (delta: -397.9MB). Peak memory consumption was 212.5MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,838 INFO L158 Benchmark]: Witness Printer took 68.15ms. Allocated memory is still 771.8MB. Free memory was 498.6MB in the beginning and 494.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:56,842 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 92.3MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.31ms. Allocated memory is still 163.6MB. Free memory was 131.2MB in the beginning and 133.5MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 163.6MB. Free memory was 133.5MB in the beginning and 130.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.90ms. Allocated memory is still 163.6MB. Free memory was 130.0MB in the beginning and 128.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.83ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 101.3MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9816.56ms. Allocated memory was 163.6MB in the beginning and 771.8MB in the end (delta: 608.2MB). Free memory was 100.7MB in the beginning and 498.6MB in the end (delta: -397.9MB). Peak memory consumption was 212.5MB. Max. memory is 16.1GB. * Witness Printer took 68.15ms. Allocated memory is still 771.8MB. Free memory was 498.6MB in the beginning and 494.4MB 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: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: 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: 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: 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: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: 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: 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: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 789 locations, 72 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: 9.6s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 223 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 142 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 605 IncrementalHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 223 mSDtfsCounter, 605 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1005occurred in iteration=21, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 3820 NumberOfCodeBlocks, 3820 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3793 ConstructedInterpolants, 0 QuantifiedInterpolants, 4084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:32:56,878 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