./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i --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/goblint-regression/28-race_reach_27-funptr_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:49:44,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:49:44,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:49:44,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:49:44,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:49:44,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:49:44,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:49:44,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:49:44,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:49:44,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:49:44,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:49:44,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:49:44,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:49:44,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:49:44,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:49:44,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:49:44,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:49:44,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:49:44,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:49:44,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:49:44,542 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:49:44,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:49:44,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:49:44,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:49:44,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:49:44,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:49:44,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:49:44,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:49:44,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:49:44,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:49:44,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:49:44,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:49:44,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:49:44,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:49:44,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:49:44,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:49:44,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:49:44,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:49:44,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:49:44,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:49:44,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:49:44,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:49:44,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:49:44,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:49:44,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:49:44,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:49:44,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:49:44,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:49:44,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:49:44,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:49:44,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:49:44,583 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:49:44,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:49:44,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:49:44,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:49:44,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:49:44,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:49:44,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:49:44,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:49:44,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:49:44,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:49:44,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:49:44,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:49:44,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:49:44,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:49:44,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:49:44,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:49:44,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:49:44,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:49:44,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:49:44,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:49:44,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:49:44,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d [2022-04-18 15:49:44,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:49:44,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:49:44,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:49:44,801 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:49:44,801 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:49:44,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i [2022-04-18 15:49:44,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc2ba0b5/e805a75f3df746edb9792a3539a7e006/FLAG4d066eb68 [2022-04-18 15:49:45,301 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:49:45,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i [2022-04-18 15:49:45,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc2ba0b5/e805a75f3df746edb9792a3539a7e006/FLAG4d066eb68 [2022-04-18 15:49:45,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc2ba0b5/e805a75f3df746edb9792a3539a7e006 [2022-04-18 15:49:45,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:49:45,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:49:45,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:49:45,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:49:45,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:49:45,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2fa70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45, skipping insertion in model container [2022-04-18 15:49:45,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:49:45,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:49:45,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i[41323,41336] [2022-04-18 15:49:45,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:49:45,718 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:49:45,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_27-funptr_racing.i[41323,41336] [2022-04-18 15:49:45,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:49:45,788 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:49:45,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45 WrapperNode [2022-04-18 15:49:45,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:49:45,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:49:45,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:49:45,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:49:45,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,845 INFO L137 Inliner]: procedures = 273, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 185 [2022-04-18 15:49:45,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:49:45,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:49:45,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:49:45,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:49:45,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:49:45,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:49:45,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:49:45,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:49:45,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (1/1) ... [2022-04-18 15:49:45,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:49:45,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:49:45,926 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 15:49:45,943 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 15:49:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:49:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:49:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:49:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:49:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:49:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:49:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 15:49:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 15:49:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:49:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:49:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:49:45,962 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 15:49:46,066 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:49:46,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:49:46,287 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:49:46,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:49:46,296 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-04-18 15:49:46,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:46 BoogieIcfgContainer [2022-04-18 15:49:46,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:49:46,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:49:46,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:49:46,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:49:46,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:49:45" (1/3) ... [2022-04-18 15:49:46,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74658678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:46, skipping insertion in model container [2022-04-18 15:49:46,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:45" (2/3) ... [2022-04-18 15:49:46,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74658678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:46, skipping insertion in model container [2022-04-18 15:49:46,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:46" (3/3) ... [2022-04-18 15:49:46,307 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2022-04-18 15:49:46,311 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:49:46,312 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:49:46,312 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-04-18 15:49:46,312 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:49:46,392 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 15:49:46,439 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:49:46,445 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 15:49:46,446 INFO L341 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-04-18 15:49:46,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 203 transitions, 414 flow [2022-04-18 15:49:46,549 INFO L129 PetriNetUnfolder]: 24/256 cut-off events. [2022-04-18 15:49:46,550 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:49:46,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 256 events. 24/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 879 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 159. Up to 4 conditions per place. [2022-04-18 15:49:46,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 203 transitions, 414 flow [2022-04-18 15:49:46,566 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 203 transitions, 414 flow [2022-04-18 15:49:46,581 INFO L129 PetriNetUnfolder]: 1/53 cut-off events. [2022-04-18 15:49:46,582 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:49:46,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:46,583 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] [2022-04-18 15:49:46,583 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 15:49:46,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash -872793264, now seen corresponding path program 1 times [2022-04-18 15:49:46,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:46,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986793252] [2022-04-18 15:49:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:46,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:46,800 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 15:49:46,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:46,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986793252] [2022-04-18 15:49:46,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986793252] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:46,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:46,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:49:46,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781019986] [2022-04-18 15:49:46,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:46,810 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:46,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:46,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:46,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:46,837 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2022-04-18 15:49:46,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 203 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:46,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:46,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2022-04-18 15:49:46,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:46,898 INFO L129 PetriNetUnfolder]: 1/204 cut-off events. [2022-04-18 15:49:46,898 INFO L130 PetriNetUnfolder]: For 9/20 co-relation queries the response was YES. [2022-04-18 15:49:46,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 204 events. 1/204 cut-off events. For 9/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 343 event pairs, 0 based on Foata normal form. 30/216 useless extension candidates. Maximal degree in co-relation 146. Up to 7 conditions per place. [2022-04-18 15:49:46,902 INFO L132 encePairwiseOnDemand]: 183/203 looper letters, 9 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-04-18 15:49:46,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 187 transitions, 404 flow [2022-04-18 15:49:46,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:46,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 570 transitions. [2022-04-18 15:49:46,923 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9359605911330049 [2022-04-18 15:49:46,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 570 transitions. [2022-04-18 15:49:46,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 570 transitions. [2022-04-18 15:49:46,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:46,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 570 transitions. [2022-04-18 15:49:46,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:46,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:46,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:46,946 INFO L186 Difference]: Start difference. First operand has 187 places, 203 transitions, 414 flow. Second operand 3 states and 570 transitions. [2022-04-18 15:49:46,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 187 transitions, 404 flow [2022-04-18 15:49:46,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 187 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:46,956 INFO L242 Difference]: Finished difference. Result has 189 places, 185 transitions, 386 flow [2022-04-18 15:49:46,958 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2022-04-18 15:49:46,961 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, 2 predicate places. [2022-04-18 15:49:46,961 INFO L478 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 386 flow [2022-04-18 15:49:46,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:46,962 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:46,962 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] [2022-04-18 15:49:46,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:49:46,963 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 15:49:46,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:46,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1251294663, now seen corresponding path program 1 times [2022-04-18 15:49:46,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:46,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348908633] [2022-04-18 15:49:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:46,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:47,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:47,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348908633] [2022-04-18 15:49:47,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348908633] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:47,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:47,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:47,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333572362] [2022-04-18 15:49:47,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:47,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:47,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:47,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:47,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:47,045 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2022-04-18 15:49:47,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:47,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2022-04-18 15:49:47,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:47,117 INFO L129 PetriNetUnfolder]: 13/563 cut-off events. [2022-04-18 15:49:47,117 INFO L130 PetriNetUnfolder]: For 12/19 co-relation queries the response was YES. [2022-04-18 15:49:47,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 563 events. 13/563 cut-off events. For 12/19 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2847 event pairs, 2 based on Foata normal form. 1/502 useless extension candidates. Maximal degree in co-relation 552. Up to 17 conditions per place. [2022-04-18 15:49:47,122 INFO L132 encePairwiseOnDemand]: 199/203 looper letters, 10 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2022-04-18 15:49:47,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 190 transitions, 425 flow [2022-04-18 15:49:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-04-18 15:49:47,124 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8949096880131363 [2022-04-18 15:49:47,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions. [2022-04-18 15:49:47,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions. [2022-04-18 15:49:47,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:47,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions. [2022-04-18 15:49:47,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,128 INFO L186 Difference]: Start difference. First operand has 189 places, 185 transitions, 386 flow. Second operand 3 states and 545 transitions. [2022-04-18 15:49:47,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 190 transitions, 425 flow [2022-04-18 15:49:47,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 190 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:47,135 INFO L242 Difference]: Finished difference. Result has 191 places, 187 transitions, 404 flow [2022-04-18 15:49:47,136 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=191, PETRI_TRANSITIONS=187} [2022-04-18 15:49:47,137 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, 4 predicate places. [2022-04-18 15:49:47,137 INFO L478 AbstractCegarLoop]: Abstraction has has 191 places, 187 transitions, 404 flow [2022-04-18 15:49:47,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,137 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:47,138 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:47,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:49:47,139 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 15:49:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash -39309455, now seen corresponding path program 1 times [2022-04-18 15:49:47,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:47,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747733460] [2022-04-18 15:49:47,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:47,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:49:47,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 15:49:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:49:47,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 15:49:47,245 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 15:49:47,245 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-04-18 15:49:47,247 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-04-18 15:49:47,248 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-04-18 15:49:47,248 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-04-18 15:49:47,248 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-04-18 15:49:47,248 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-04-18 15:49:47,249 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-04-18 15:49:47,249 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-04-18 15:49:47,250 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-04-18 15:49:47,250 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-04-18 15:49:47,250 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-04-18 15:49:47,250 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-04-18 15:49:47,251 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-04-18 15:49:47,251 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-04-18 15:49:47,251 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-04-18 15:49:47,254 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-04-18 15:49:47,254 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-04-18 15:49:47,255 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-04-18 15:49:47,255 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-04-18 15:49:47,255 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-04-18 15:49:47,255 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-04-18 15:49:47,256 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-04-18 15:49:47,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:49:47,259 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 15:49:47,260 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 15:49:47,262 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 15:49:47,302 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 15:49:47,308 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:49:47,308 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 15:49:47,309 INFO L341 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-04-18 15:49:47,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 306 transitions, 630 flow [2022-04-18 15:49:47,369 INFO L129 PetriNetUnfolder]: 45/443 cut-off events. [2022-04-18 15:49:47,369 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 15:49:47,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 443 events. 45/443 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1918 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 282. Up to 8 conditions per place. [2022-04-18 15:49:47,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 306 transitions, 630 flow [2022-04-18 15:49:47,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 306 transitions, 630 flow [2022-04-18 15:49:47,386 INFO L129 PetriNetUnfolder]: 1/52 cut-off events. [2022-04-18 15:49:47,386 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:49:47,386 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:47,387 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] [2022-04-18 15:49:47,387 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:47,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:47,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1927980657, now seen corresponding path program 1 times [2022-04-18 15:49:47,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:47,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31012354] [2022-04-18 15:49:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:47,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:47,438 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 15:49:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:47,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31012354] [2022-04-18 15:49:47,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31012354] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:47,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:47,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:47,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571071570] [2022-04-18 15:49:47,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:47,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:49:47,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:49:47,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:49:47,446 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 306 [2022-04-18 15:49:47,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 306 transitions, 630 flow. Second operand has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:47,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 306 [2022-04-18 15:49:47,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:47,502 INFO L129 PetriNetUnfolder]: 5/400 cut-off events. [2022-04-18 15:49:47,502 INFO L130 PetriNetUnfolder]: For 18/22 co-relation queries the response was YES. [2022-04-18 15:49:47,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 400 events. 5/400 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1494 event pairs, 0 based on Foata normal form. 64/424 useless extension candidates. Maximal degree in co-relation 252. Up to 7 conditions per place. [2022-04-18 15:49:47,508 INFO L132 encePairwiseOnDemand]: 277/306 looper letters, 4 selfloop transitions, 0 changer transitions 0/276 dead transitions. [2022-04-18 15:49:47,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 276 transitions, 578 flow [2022-04-18 15:49:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:49:47,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:49:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 577 transitions. [2022-04-18 15:49:47,511 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9428104575163399 [2022-04-18 15:49:47,511 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 577 transitions. [2022-04-18 15:49:47,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 577 transitions. [2022-04-18 15:49:47,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:47,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 577 transitions. [2022-04-18 15:49:47,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,518 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,518 INFO L186 Difference]: Start difference. First operand has 278 places, 306 transitions, 630 flow. Second operand 2 states and 577 transitions. [2022-04-18 15:49:47,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 276 transitions, 578 flow [2022-04-18 15:49:47,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 276 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:47,524 INFO L242 Difference]: Finished difference. Result has 278 places, 276 transitions, 570 flow [2022-04-18 15:49:47,525 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=570, PETRI_PLACES=278, PETRI_TRANSITIONS=276} [2022-04-18 15:49:47,527 INFO L335 CegarLoopForPetriNet]: 278 programPoint places, 0 predicate places. [2022-04-18 15:49:47,527 INFO L478 AbstractCegarLoop]: Abstraction has has 278 places, 276 transitions, 570 flow [2022-04-18 15:49:47,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,532 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:47,532 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] [2022-04-18 15:49:47,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:49:47,533 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1040476976, now seen corresponding path program 1 times [2022-04-18 15:49:47,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:47,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718653173] [2022-04-18 15:49:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:47,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:47,597 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 15:49:47,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:47,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718653173] [2022-04-18 15:49:47,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718653173] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:47,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:47,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:49:47,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489861345] [2022-04-18 15:49:47,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:47,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:47,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:47,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:47,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:47,601 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 306 [2022-04-18 15:49:47,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 276 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:47,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 306 [2022-04-18 15:49:47,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:47,678 INFO L129 PetriNetUnfolder]: 4/372 cut-off events. [2022-04-18 15:49:47,678 INFO L130 PetriNetUnfolder]: For 14/33 co-relation queries the response was YES. [2022-04-18 15:49:47,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 372 events. 4/372 cut-off events. For 14/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1288 event pairs, 0 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 403. Up to 16 conditions per place. [2022-04-18 15:49:47,684 INFO L132 encePairwiseOnDemand]: 303/306 looper letters, 13 selfloop transitions, 2 changer transitions 0/280 dead transitions. [2022-04-18 15:49:47,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 280 transitions, 608 flow [2022-04-18 15:49:47,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:47,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-04-18 15:49:47,687 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.883442265795207 [2022-04-18 15:49:47,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-04-18 15:49:47,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-04-18 15:49:47,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:47,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-04-18 15:49:47,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,691 INFO L186 Difference]: Start difference. First operand has 278 places, 276 transitions, 570 flow. Second operand 3 states and 811 transitions. [2022-04-18 15:49:47,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 280 transitions, 608 flow [2022-04-18 15:49:47,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 280 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:47,696 INFO L242 Difference]: Finished difference. Result has 281 places, 277 transitions, 582 flow [2022-04-18 15:49:47,696 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=281, PETRI_TRANSITIONS=277} [2022-04-18 15:49:47,698 INFO L335 CegarLoopForPetriNet]: 278 programPoint places, 3 predicate places. [2022-04-18 15:49:47,698 INFO L478 AbstractCegarLoop]: Abstraction has has 281 places, 277 transitions, 582 flow [2022-04-18 15:49:47,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,699 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:47,699 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] [2022-04-18 15:49:47,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:49:47,699 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:47,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:47,700 INFO L85 PathProgramCache]: Analyzing trace with hash 615707756, now seen corresponding path program 1 times [2022-04-18 15:49:47,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:47,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70679046] [2022-04-18 15:49:47,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:47,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:47,744 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 15:49:47,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:47,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70679046] [2022-04-18 15:49:47,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70679046] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:47,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:47,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:47,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204061660] [2022-04-18 15:49:47,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:47,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:47,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:47,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:47,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:47,747 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 306 [2022-04-18 15:49:47,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 277 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:47,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:47,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 306 [2022-04-18 15:49:47,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:48,110 INFO L129 PetriNetUnfolder]: 148/3264 cut-off events. [2022-04-18 15:49:48,110 INFO L130 PetriNetUnfolder]: For 75/119 co-relation queries the response was YES. [2022-04-18 15:49:48,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3560 conditions, 3264 events. 148/3264 cut-off events. For 75/119 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 31769 event pairs, 32 based on Foata normal form. 6/2875 useless extension candidates. Maximal degree in co-relation 3553. Up to 156 conditions per place. [2022-04-18 15:49:48,137 INFO L132 encePairwiseOnDemand]: 299/306 looper letters, 18 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2022-04-18 15:49:48,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 287 transitions, 659 flow [2022-04-18 15:49:48,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:48,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:48,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-04-18 15:49:48,139 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8867102396514162 [2022-04-18 15:49:48,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-04-18 15:49:48,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-04-18 15:49:48,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:48,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-04-18 15:49:48,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,144 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,144 INFO L186 Difference]: Start difference. First operand has 281 places, 277 transitions, 582 flow. Second operand 3 states and 814 transitions. [2022-04-18 15:49:48,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 287 transitions, 659 flow [2022-04-18 15:49:48,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 287 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:49:48,148 INFO L242 Difference]: Finished difference. Result has 284 places, 282 transitions, 624 flow [2022-04-18 15:49:48,149 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=284, PETRI_TRANSITIONS=282} [2022-04-18 15:49:48,151 INFO L335 CegarLoopForPetriNet]: 278 programPoint places, 6 predicate places. [2022-04-18 15:49:48,151 INFO L478 AbstractCegarLoop]: Abstraction has has 284 places, 282 transitions, 624 flow [2022-04-18 15:49:48,152 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,152 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:48,152 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] [2022-04-18 15:49:48,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:49:48,153 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash -755402237, now seen corresponding path program 1 times [2022-04-18 15:49:48,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:48,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888235358] [2022-04-18 15:49:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:48,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:48,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:48,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888235358] [2022-04-18 15:49:48,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888235358] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 15:49:48,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287811478] [2022-04-18 15:49:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:48,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:49:48,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:49:48,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:49:48,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 15:49:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:48,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 15:49:48,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:49:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 15:49:48,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:49:48,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287811478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:48,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 15:49:48,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-04-18 15:49:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645317255] [2022-04-18 15:49:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:48,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:48,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:48,432 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 306 [2022-04-18 15:49:48,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 282 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:48,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 306 [2022-04-18 15:49:48,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:48,903 INFO L129 PetriNetUnfolder]: 212/5195 cut-off events. [2022-04-18 15:49:48,903 INFO L130 PetriNetUnfolder]: For 263/376 co-relation queries the response was YES. [2022-04-18 15:49:48,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5858 conditions, 5195 events. 212/5195 cut-off events. For 263/376 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 58562 event pairs, 50 based on Foata normal form. 5/4645 useless extension candidates. Maximal degree in co-relation 5850. Up to 242 conditions per place. [2022-04-18 15:49:48,947 INFO L132 encePairwiseOnDemand]: 300/306 looper letters, 25 selfloop transitions, 8 changer transitions 0/294 dead transitions. [2022-04-18 15:49:48,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 294 transitions, 742 flow [2022-04-18 15:49:48,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2022-04-18 15:49:48,960 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8769063180827886 [2022-04-18 15:49:48,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2022-04-18 15:49:48,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2022-04-18 15:49:48,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:48,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2022-04-18 15:49:48,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,964 INFO L186 Difference]: Start difference. First operand has 284 places, 282 transitions, 624 flow. Second operand 3 states and 805 transitions. [2022-04-18 15:49:48,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 294 transitions, 742 flow [2022-04-18 15:49:48,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 294 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:48,971 INFO L242 Difference]: Finished difference. Result has 286 places, 288 transitions, 680 flow [2022-04-18 15:49:48,972 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=286, PETRI_TRANSITIONS=288} [2022-04-18 15:49:48,973 INFO L335 CegarLoopForPetriNet]: 278 programPoint places, 8 predicate places. [2022-04-18 15:49:48,973 INFO L478 AbstractCegarLoop]: Abstraction has has 286 places, 288 transitions, 680 flow [2022-04-18 15:49:48,974 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:48,974 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:48,974 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] [2022-04-18 15:49:48,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 15:49:49,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:49:49,188 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:49,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:49,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1616920704, now seen corresponding path program 1 times [2022-04-18 15:49:49,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:49,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829006786] [2022-04-18 15:49:49,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:49,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:49,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:49,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829006786] [2022-04-18 15:49:49,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829006786] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 15:49:49,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119058216] [2022-04-18 15:49:49,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:49,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:49:49,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:49:49,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:49:49,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 15:49:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:49,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 15:49:49,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:49:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:49,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:49:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:49,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119058216] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:49:49,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 15:49:49,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-04-18 15:49:49,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219993758] [2022-04-18 15:49:49,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 15:49:49,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 15:49:49,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:49,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 15:49:49,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-04-18 15:49:49,504 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 306 [2022-04-18 15:49:49,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 288 transitions, 680 flow. Second operand has 10 states, 10 states have (on average 266.3) internal successors, (2663), 10 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:49,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:49,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 306 [2022-04-18 15:49:49,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:49,594 INFO L129 PetriNetUnfolder]: 9/492 cut-off events. [2022-04-18 15:49:49,594 INFO L130 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2022-04-18 15:49:49,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 492 events. 9/492 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2351 event pairs, 2 based on Foata normal form. 2/448 useless extension candidates. Maximal degree in co-relation 536. Up to 12 conditions per place. [2022-04-18 15:49:49,599 INFO L132 encePairwiseOnDemand]: 301/306 looper letters, 9 selfloop transitions, 7 changer transitions 0/234 dead transitions. [2022-04-18 15:49:49,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 234 transitions, 538 flow [2022-04-18 15:49:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 15:49:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 15:49:49,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2394 transitions. [2022-04-18 15:49:49,603 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.869281045751634 [2022-04-18 15:49:49,603 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2394 transitions. [2022-04-18 15:49:49,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2394 transitions. [2022-04-18 15:49:49,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:49,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2394 transitions. [2022-04-18 15:49:49,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:49,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 306.0) internal successors, (3060), 10 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:49,611 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 306.0) internal successors, (3060), 10 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:49,611 INFO L186 Difference]: Start difference. First operand has 286 places, 288 transitions, 680 flow. Second operand 9 states and 2394 transitions. [2022-04-18 15:49:49,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 234 transitions, 538 flow [2022-04-18 15:49:49,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 234 transitions, 528 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-04-18 15:49:49,615 INFO L242 Difference]: Finished difference. Result has 242 places, 230 transitions, 502 flow [2022-04-18 15:49:49,616 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=502, PETRI_PLACES=242, PETRI_TRANSITIONS=230} [2022-04-18 15:49:49,616 INFO L335 CegarLoopForPetriNet]: 278 programPoint places, -36 predicate places. [2022-04-18 15:49:49,616 INFO L478 AbstractCegarLoop]: Abstraction has has 242 places, 230 transitions, 502 flow [2022-04-18 15:49:49,617 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 266.3) internal successors, (2663), 10 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:49,617 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:49,618 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 15:49:49,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 15:49:49,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-04-18 15:49:49,835 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:49,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:49,836 INFO L85 PathProgramCache]: Analyzing trace with hash 984929279, now seen corresponding path program 1 times [2022-04-18 15:49:49,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:49,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832887769] [2022-04-18 15:49:49,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:49,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:49,855 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 15:49:49,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:49,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832887769] [2022-04-18 15:49:49,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832887769] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:49,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:49,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:49,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845189540] [2022-04-18 15:49:49,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:49,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:49,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:49,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:49,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:49,857 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 306 [2022-04-18 15:49:49,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 230 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:49,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:49,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 306 [2022-04-18 15:49:49,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:50,166 INFO L129 PetriNetUnfolder]: 708/3286 cut-off events. [2022-04-18 15:49:50,166 INFO L130 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-04-18 15:49:50,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 3286 events. 708/3286 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 29112 event pairs, 268 based on Foata normal form. 0/2860 useless extension candidates. Maximal degree in co-relation 4888. Up to 839 conditions per place. [2022-04-18 15:49:50,187 INFO L132 encePairwiseOnDemand]: 274/306 looper letters, 67 selfloop transitions, 24 changer transitions 0/271 dead transitions. [2022-04-18 15:49:50,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 271 transitions, 771 flow [2022-04-18 15:49:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 762 transitions. [2022-04-18 15:49:50,189 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8300653594771242 [2022-04-18 15:49:50,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 762 transitions. [2022-04-18 15:49:50,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 762 transitions. [2022-04-18 15:49:50,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:50,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 762 transitions. [2022-04-18 15:49:50,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,192 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,192 INFO L186 Difference]: Start difference. First operand has 242 places, 230 transitions, 502 flow. Second operand 3 states and 762 transitions. [2022-04-18 15:49:50,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 271 transitions, 771 flow [2022-04-18 15:49:50,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 271 transitions, 756 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-04-18 15:49:50,196 INFO L242 Difference]: Finished difference. Result has 241 places, 254 transitions, 695 flow [2022-04-18 15:49:50,196 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=241, PETRI_TRANSITIONS=254} [2022-04-18 15:49:50,197 INFO L335 CegarLoopForPetriNet]: 278 programPoint places, -37 predicate places. [2022-04-18 15:49:50,197 INFO L478 AbstractCegarLoop]: Abstraction has has 241 places, 254 transitions, 695 flow [2022-04-18 15:49:50,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,197 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:50,197 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:50,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 15:49:50,197 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-04-18 15:49:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1452311185, now seen corresponding path program 1 times [2022-04-18 15:49:50,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:50,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792894809] [2022-04-18 15:49:50,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:50,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:49:50,210 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 15:49:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:49:50,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 15:49:50,224 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 15:49:50,224 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-04-18 15:49:50,224 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-04-18 15:49:50,224 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-04-18 15:49:50,224 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-04-18 15:49:50,225 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-04-18 15:49:50,226 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-04-18 15:49:50,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-04-18 15:49:50,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-04-18 15:49:50,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-04-18 15:49:50,227 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-04-18 15:49:50,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 15:49:50,227 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:50,227 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 15:49:50,227 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 15:49:50,250 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 15:49:50,251 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:49:50,251 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 15:49:50,251 INFO L341 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-04-18 15:49:50,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 409 transitions, 848 flow [2022-04-18 15:49:50,346 INFO L129 PetriNetUnfolder]: 71/675 cut-off events. [2022-04-18 15:49:50,346 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-04-18 15:49:50,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 675 events. 71/675 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3211 event pairs, 1 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 451. Up to 16 conditions per place. [2022-04-18 15:49:50,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 409 transitions, 848 flow [2022-04-18 15:49:50,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 409 transitions, 848 flow [2022-04-18 15:49:50,370 INFO L129 PetriNetUnfolder]: 1/51 cut-off events. [2022-04-18 15:49:50,370 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:49:50,370 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:50,371 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] [2022-04-18 15:49:50,371 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-04-18 15:49:50,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:50,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2086717007, now seen corresponding path program 1 times [2022-04-18 15:49:50,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:50,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266702512] [2022-04-18 15:49:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:50,385 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 15:49:50,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:50,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266702512] [2022-04-18 15:49:50,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266702512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:50,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:50,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:50,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059233242] [2022-04-18 15:49:50,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:50,386 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:49:50,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:50,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:49:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:49:50,388 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 409 [2022-04-18 15:49:50,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 409 transitions, 848 flow. Second operand has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:50,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 409 [2022-04-18 15:49:50,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:50,516 INFO L129 PetriNetUnfolder]: 11/611 cut-off events. [2022-04-18 15:49:50,516 INFO L130 PetriNetUnfolder]: For 56/73 co-relation queries the response was YES. [2022-04-18 15:49:50,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 611 events. 11/611 cut-off events. For 56/73 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2767 event pairs, 1 based on Foata normal form. 172/721 useless extension candidates. Maximal degree in co-relation 414. Up to 16 conditions per place. [2022-04-18 15:49:50,530 INFO L132 encePairwiseOnDemand]: 368/409 looper letters, 6 selfloop transitions, 0 changer transitions 0/367 dead transitions. [2022-04-18 15:49:50,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 367 transitions, 776 flow [2022-04-18 15:49:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:49:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:49:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 769 transitions. [2022-04-18 15:49:50,532 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9400977995110025 [2022-04-18 15:49:50,532 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 769 transitions. [2022-04-18 15:49:50,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 769 transitions. [2022-04-18 15:49:50,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:50,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 769 transitions. [2022-04-18 15:49:50,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 384.5) internal successors, (769), 2 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,535 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,535 INFO L186 Difference]: Start difference. First operand has 369 places, 409 transitions, 848 flow. Second operand 2 states and 769 transitions. [2022-04-18 15:49:50,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 367 transitions, 776 flow [2022-04-18 15:49:50,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 367 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:50,540 INFO L242 Difference]: Finished difference. Result has 369 places, 367 transitions, 764 flow [2022-04-18 15:49:50,540 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=764, PETRI_PLACES=369, PETRI_TRANSITIONS=367} [2022-04-18 15:49:50,541 INFO L335 CegarLoopForPetriNet]: 369 programPoint places, 0 predicate places. [2022-04-18 15:49:50,541 INFO L478 AbstractCegarLoop]: Abstraction has has 369 places, 367 transitions, 764 flow [2022-04-18 15:49:50,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,541 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:50,541 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] [2022-04-18 15:49:50,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 15:49:50,541 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-04-18 15:49:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1320746608, now seen corresponding path program 1 times [2022-04-18 15:49:50,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:50,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218841400] [2022-04-18 15:49:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:50,557 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 15:49:50,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:50,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218841400] [2022-04-18 15:49:50,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218841400] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:50,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:50,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:49:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407887598] [2022-04-18 15:49:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:50,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:50,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:50,560 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 409 [2022-04-18 15:49:50,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 367 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:50,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 409 [2022-04-18 15:49:50,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:50,649 INFO L129 PetriNetUnfolder]: 10/583 cut-off events. [2022-04-18 15:49:50,649 INFO L130 PetriNetUnfolder]: For 79/196 co-relation queries the response was YES. [2022-04-18 15:49:50,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 583 events. 10/583 cut-off events. For 79/196 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2565 event pairs, 1 based on Foata normal form. 1/526 useless extension candidates. Maximal degree in co-relation 641. Up to 30 conditions per place. [2022-04-18 15:49:50,663 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 15 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-04-18 15:49:50,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 371 transitions, 806 flow [2022-04-18 15:49:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1080 transitions. [2022-04-18 15:49:50,685 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8801955990220048 [2022-04-18 15:49:50,685 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1080 transitions. [2022-04-18 15:49:50,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1080 transitions. [2022-04-18 15:49:50,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:50,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1080 transitions. [2022-04-18 15:49:50,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,690 INFO L186 Difference]: Start difference. First operand has 369 places, 367 transitions, 764 flow. Second operand 3 states and 1080 transitions. [2022-04-18 15:49:50,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 371 transitions, 806 flow [2022-04-18 15:49:50,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 371 transitions, 806 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:50,694 INFO L242 Difference]: Finished difference. Result has 372 places, 368 transitions, 776 flow [2022-04-18 15:49:50,695 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=372, PETRI_TRANSITIONS=368} [2022-04-18 15:49:50,695 INFO L335 CegarLoopForPetriNet]: 369 programPoint places, 3 predicate places. [2022-04-18 15:49:50,695 INFO L478 AbstractCegarLoop]: Abstraction has has 372 places, 368 transitions, 776 flow [2022-04-18 15:49:50,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,696 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:50,696 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] [2022-04-18 15:49:50,696 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 15:49:50,696 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-04-18 15:49:50,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1228940335, now seen corresponding path program 1 times [2022-04-18 15:49:50,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:50,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815945580] [2022-04-18 15:49:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:50,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:50,712 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 15:49:50,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:50,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815945580] [2022-04-18 15:49:50,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815945580] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:50,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:50,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:50,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477092827] [2022-04-18 15:49:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:50,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:50,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:50,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:50,714 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 409 [2022-04-18 15:49:50,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 368 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:50,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:50,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 409 [2022-04-18 15:49:50,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:52,706 INFO L129 PetriNetUnfolder]: 1069/17207 cut-off events. [2022-04-18 15:49:52,706 INFO L130 PetriNetUnfolder]: For 729/1179 co-relation queries the response was YES. [2022-04-18 15:49:52,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18960 conditions, 17207 events. 1069/17207 cut-off events. For 729/1179 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 235354 event pairs, 290 based on Foata normal form. 23/15094 useless extension candidates. Maximal degree in co-relation 18952. Up to 1038 conditions per place. [2022-04-18 15:49:52,994 INFO L132 encePairwiseOnDemand]: 399/409 looper letters, 25 selfloop transitions, 7 changer transitions 0/382 dead transitions. [2022-04-18 15:49:52,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 382 transitions, 889 flow [2022-04-18 15:49:52,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1082 transitions. [2022-04-18 15:49:52,997 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8818255908720456 [2022-04-18 15:49:52,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1082 transitions. [2022-04-18 15:49:52,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1082 transitions. [2022-04-18 15:49:52,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:52,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1082 transitions. [2022-04-18 15:49:52,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.6666666666667) internal successors, (1082), 3 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:53,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:53,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:53,001 INFO L186 Difference]: Start difference. First operand has 372 places, 368 transitions, 776 flow. Second operand 3 states and 1082 transitions. [2022-04-18 15:49:53,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 382 transitions, 889 flow [2022-04-18 15:49:53,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 382 transitions, 887 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:49:53,008 INFO L242 Difference]: Finished difference. Result has 375 places, 375 transitions, 836 flow [2022-04-18 15:49:53,008 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=375, PETRI_TRANSITIONS=375} [2022-04-18 15:49:53,009 INFO L335 CegarLoopForPetriNet]: 369 programPoint places, 6 predicate places. [2022-04-18 15:49:53,009 INFO L478 AbstractCegarLoop]: Abstraction has has 375 places, 375 transitions, 836 flow [2022-04-18 15:49:53,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:53,010 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:53,010 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] [2022-04-18 15:49:53,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 15:49:53,010 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-04-18 15:49:53,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash 395818824, now seen corresponding path program 1 times [2022-04-18 15:49:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:53,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275424425] [2022-04-18 15:49:53,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:53,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:53,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275424425] [2022-04-18 15:49:53,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275424425] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 15:49:53,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374987837] [2022-04-18 15:49:53,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:53,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:49:53,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:49:53,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:49:53,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 15:49:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:53,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 15:49:53,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:49:53,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 15:49:53,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:49:53,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374987837] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:53,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 15:49:53,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-04-18 15:49:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965824673] [2022-04-18 15:49:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:53,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:53,192 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 409 [2022-04-18 15:49:53,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 375 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:53,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:53,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 409 [2022-04-18 15:49:53,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:56,139 INFO L129 PetriNetUnfolder]: 1485/27397 cut-off events. [2022-04-18 15:49:56,140 INFO L130 PetriNetUnfolder]: For 1958/4017 co-relation queries the response was YES. [2022-04-18 15:49:56,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31479 conditions, 27397 events. 1485/27397 cut-off events. For 1958/4017 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 419982 event pairs, 395 based on Foata normal form. 18/24488 useless extension candidates. Maximal degree in co-relation 31470. Up to 1514 conditions per place. [2022-04-18 15:49:56,506 INFO L132 encePairwiseOnDemand]: 402/409 looper letters, 35 selfloop transitions, 10 changer transitions 0/392 dead transitions. [2022-04-18 15:49:56,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 392 transitions, 1002 flow [2022-04-18 15:49:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:56,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1071 transitions. [2022-04-18 15:49:56,509 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8728606356968215 [2022-04-18 15:49:56,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1071 transitions. [2022-04-18 15:49:56,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1071 transitions. [2022-04-18 15:49:56,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:56,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1071 transitions. [2022-04-18 15:49:56,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,524 INFO L186 Difference]: Start difference. First operand has 375 places, 375 transitions, 836 flow. Second operand 3 states and 1071 transitions. [2022-04-18 15:49:56,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 392 transitions, 1002 flow [2022-04-18 15:49:56,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 392 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:56,532 INFO L242 Difference]: Finished difference. Result has 377 places, 383 transitions, 908 flow [2022-04-18 15:49:56,533 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=377, PETRI_TRANSITIONS=383} [2022-04-18 15:49:56,534 INFO L335 CegarLoopForPetriNet]: 369 programPoint places, 8 predicate places. [2022-04-18 15:49:56,534 INFO L478 AbstractCegarLoop]: Abstraction has has 377 places, 383 transitions, 908 flow [2022-04-18 15:49:56,534 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,534 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:56,534 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] [2022-04-18 15:49:56,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-18 15:49:56,747 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:49:56,747 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-04-18 15:49:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1413264712, now seen corresponding path program 1 times [2022-04-18 15:49:56,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:56,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97008845] [2022-04-18 15:49:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:56,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97008845] [2022-04-18 15:49:56,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97008845] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 15:49:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267874866] [2022-04-18 15:49:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:56,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:49:56,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:49:56,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:49:56,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-18 15:49:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:56,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 15:49:56,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:49:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:56,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:49:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:56,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267874866] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:49:56,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 15:49:56,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-04-18 15:49:56,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471213019] [2022-04-18 15:49:56,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 15:49:56,991 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 15:49:56,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:56,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 15:49:56,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-04-18 15:49:56,993 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 409 [2022-04-18 15:49:56,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 383 transitions, 908 flow. Second operand has 10 states, 10 states have (on average 355.3) internal successors, (3553), 10 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:56,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 409 [2022-04-18 15:49:56,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:59,182 INFO L129 PetriNetUnfolder]: 703/17328 cut-off events. [2022-04-18 15:49:59,182 INFO L130 PetriNetUnfolder]: For 1209/1480 co-relation queries the response was YES. [2022-04-18 15:49:59,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19291 conditions, 17328 events. 703/17328 cut-off events. For 1209/1480 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 254075 event pairs, 156 based on Foata normal form. 15/15387 useless extension candidates. Maximal degree in co-relation 19281. Up to 682 conditions per place. [2022-04-18 15:49:59,379 INFO L132 encePairwiseOnDemand]: 403/409 looper letters, 16 selfloop transitions, 9 changer transitions 0/393 dead transitions. [2022-04-18 15:49:59,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 393 transitions, 980 flow [2022-04-18 15:49:59,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 15:49:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 15:49:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3204 transitions. [2022-04-18 15:49:59,384 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8704156479217604 [2022-04-18 15:49:59,384 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3204 transitions. [2022-04-18 15:49:59,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3204 transitions. [2022-04-18 15:49:59,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:59,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3204 transitions. [2022-04-18 15:49:59,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 356.0) internal successors, (3204), 9 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 409.0) internal successors, (4090), 10 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,394 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 409.0) internal successors, (4090), 10 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,394 INFO L186 Difference]: Start difference. First operand has 377 places, 383 transitions, 908 flow. Second operand 9 states and 3204 transitions. [2022-04-18 15:49:59,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 393 transitions, 980 flow [2022-04-18 15:49:59,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 393 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:59,401 INFO L242 Difference]: Finished difference. Result has 386 places, 389 transitions, 938 flow [2022-04-18 15:49:59,402 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=938, PETRI_PLACES=386, PETRI_TRANSITIONS=389} [2022-04-18 15:49:59,403 INFO L335 CegarLoopForPetriNet]: 369 programPoint places, 17 predicate places. [2022-04-18 15:49:59,403 INFO L478 AbstractCegarLoop]: Abstraction has has 386 places, 389 transitions, 938 flow [2022-04-18 15:49:59,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 355.3) internal successors, (3553), 10 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,404 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:59,404 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 15:49:59,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-18 15:49:59,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-04-18 15:49:59,620 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-04-18 15:49:59,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:59,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2048044580, now seen corresponding path program 1 times [2022-04-18 15:49:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:59,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307368542] [2022-04-18 15:49:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:59,644 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 15:49:59,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:59,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307368542] [2022-04-18 15:49:59,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307368542] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:59,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:59,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:59,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313587524] [2022-04-18 15:49:59,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:59,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:59,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:59,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:59,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:59,647 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 409 [2022-04-18 15:49:59,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 389 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:59,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 409 [2022-04-18 15:49:59,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:18,965 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:18,965 INFO L384 tUnfolder$Statistics]: this new event has 144 ancestors and is cut-off event [2022-04-18 15:50:18,965 INFO L387 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-04-18 15:50:18,965 INFO L387 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-04-18 15:50:18,965 INFO L387 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-04-18 15:50:20,561 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:20,562 INFO L384 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,562 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,562 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,562 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,601 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:20,602 INFO L384 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,602 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,602 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,602 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,626 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:20,626 INFO L384 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,626 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,626 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,626 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,629 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 169#L938-9true, 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:20,629 INFO L384 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,629 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,630 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,630 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,632 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:20,632 INFO L384 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,632 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,632 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:20,632 INFO L387 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-04-18 15:50:22,482 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true, 222#L942-8true]) [2022-04-18 15:50:22,483 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,483 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,483 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,483 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,505 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,505 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,505 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,505 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,505 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,506 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 169#L938-9true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,506 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,506 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,506 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,506 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,507 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,508 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,508 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,508 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,508 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,548 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,548 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,548 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,548 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,548 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,549 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 169#L938-9true, 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,549 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,549 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,549 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,549 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,550 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,550 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,550 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,550 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,550 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,570 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,571 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,571 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,571 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,571 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,572 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 39#L961-4true, 169#L938-9true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:22,572 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,572 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,572 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:22,572 INFO L387 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-04-18 15:50:24,452 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true, 222#L942-8true]) [2022-04-18 15:50:24,453 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,453 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,453 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,453 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,493 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true, 222#L942-8true]) [2022-04-18 15:50:24,493 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,493 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,493 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,493 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,518 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 28#t_funErr6ASSERT_VIOLATIONDATA_RACEtrue, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:24,519 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,519 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,519 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,519 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,521 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, 306#L942-9true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 249#L961-3true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:24,521 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,521 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,521 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,521 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,523 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true, 222#L942-8true]) [2022-04-18 15:50:24,524 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,524 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,524 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,524 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,553 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:24,553 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,553 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,553 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,553 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,555 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 169#L938-9true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:24,555 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,555 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,555 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,555 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,601 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:24,602 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,602 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,602 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,602 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,604 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [Black: 380#true, 322#L938-9true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 39#L961-4true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), 169#L938-9true, Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 327#L942-3true]) [2022-04-18 15:50:24,604 INFO L384 tUnfolder$Statistics]: this new event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,604 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,604 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event [2022-04-18 15:50:24,604 INFO L387 tUnfolder$Statistics]: existing Event has 147 ancestors and is cut-off event