./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_46-escape_racefree.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_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:49:52,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:49:52,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:49:52,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:49:52,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:49:52,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:49:52,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:49:52,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:49:52,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:49:52,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:49:52,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:49:52,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:49:52,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:49:52,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:49:52,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:49:52,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:49:52,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:49:52,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:49:52,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:49:52,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:49:52,773 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:49:52,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:49:52,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:49:52,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:49:52,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:49:52,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:49:52,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:49:52,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:49:52,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:49:52,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:49:52,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:49:52,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:49:52,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:49:52,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:49:52,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:49:52,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:49:52,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:49:52,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:49:52,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:49:52,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:49:52,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:49:52,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:49:52,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:49:52,820 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:49:52,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:49:52,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:49:52,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:49:52,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:49:52,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:49:52,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:49:52,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:49:52,823 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:49:52,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:49:52,824 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:49:52,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:49:52,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:49:52,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:49:52,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:49:52,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:49:52,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:49:52,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:49:52,826 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:49:52,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:49:52,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:49:52,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:49:52,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:49:52,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:49:52,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:49:52,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:49:52,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:49:52,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:49:52,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:49:52,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:49:52,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:49:52,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:49:52,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:49:52,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:49:52,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:49:52,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-04-18 15:49:53,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:49:53,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:49:53,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:49:53,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:49:53,096 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:49:53,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-04-18 15:49:53,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21792ce95/da7a8aa911474000a2e4e4f022ed7bb4/FLAG3b478ccd6 [2022-04-18 15:49:53,588 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:49:53,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-04-18 15:49:53,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21792ce95/da7a8aa911474000a2e4e4f022ed7bb4/FLAG3b478ccd6 [2022-04-18 15:49:53,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21792ce95/da7a8aa911474000a2e4e4f022ed7bb4 [2022-04-18 15:49:53,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:49:53,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:49:53,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:49:53,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:49:53,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:49:53,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:53" (1/1) ... [2022-04-18 15:49:53,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae99f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:53, skipping insertion in model container [2022-04-18 15:49:53,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:53" (1/1) ... [2022-04-18 15:49:53,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:49:53,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:49:53,946 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_46-escape_racefree.i[30176,30189] [2022-04-18 15:49:53,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:49:53,990 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:49:54,032 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_46-escape_racefree.i[30176,30189] [2022-04-18 15:49:54,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:49:54,102 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:49:54,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54 WrapperNode [2022-04-18 15:49:54,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:49:54,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:49:54,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:49:54,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:49:54,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,169 INFO L137 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-04-18 15:49:54,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:49:54,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:49:54,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:49:54,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:49:54,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:49:54,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:49:54,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:49:54,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:49:54,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (1/1) ... [2022-04-18 15:49:54,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:49:54,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:49:54,246 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 15:49:54,255 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 15:49:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:49:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:49:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:49:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:49:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:49:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 15:49:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 15:49:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:49:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:49:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:49:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:49:54,282 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 15:49:54,395 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:49:54,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:49:54,641 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:49:54,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:49:54,648 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-04-18 15:49:54,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:54 BoogieIcfgContainer [2022-04-18 15:49:54,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:49:54,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:49:54,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:49:54,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:49:54,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:49:53" (1/3) ... [2022-04-18 15:49:54,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bfba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:54, skipping insertion in model container [2022-04-18 15:49:54,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:54" (2/3) ... [2022-04-18 15:49:54,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bfba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:54, skipping insertion in model container [2022-04-18 15:49:54,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:54" (3/3) ... [2022-04-18 15:49:54,658 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-04-18 15:49:54,662 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:49:54,663 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:49:54,663 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-04-18 15:49:54,663 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:49:54,742 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 15:49:54,789 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:49:54,794 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 15:49:54,795 INFO L341 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-04-18 15:49:54,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 306 flow [2022-04-18 15:49:54,877 INFO L129 PetriNetUnfolder]: 9/148 cut-off events. [2022-04-18 15:49:54,877 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:49:54,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 148 events. 9/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-04-18 15:49:54,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 306 flow [2022-04-18 15:49:54,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 138 transitions, 279 flow [2022-04-18 15:49:54,917 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2022-04-18 15:49:54,918 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:49:54,918 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:54,919 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 15:49:54,919 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:54,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash -805644313, now seen corresponding path program 1 times [2022-04-18 15:49:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:54,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607634408] [2022-04-18 15:49:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:55,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607634408] [2022-04-18 15:49:55,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607634408] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:55,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:55,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:55,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606565620] [2022-04-18 15:49:55,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:55,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:55,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:55,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:55,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:55,356 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-04-18 15:49:55,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 138 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:55,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:55,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-04-18 15:49:55,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:55,886 INFO L129 PetriNetUnfolder]: 474/1648 cut-off events. [2022-04-18 15:49:55,887 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:49:55,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1648 events. 474/1648 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10474 event pairs, 34 based on Foata normal form. 225/1692 useless extension candidates. Maximal degree in co-relation 2620. Up to 550 conditions per place. [2022-04-18 15:49:55,902 INFO L132 encePairwiseOnDemand]: 126/149 looper letters, 110 selfloop transitions, 37 changer transitions 0/234 dead transitions. [2022-04-18 15:49:55,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 234 transitions, 765 flow [2022-04-18 15:49:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:55,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 753 transitions. [2022-04-18 15:49:55,924 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8422818791946308 [2022-04-18 15:49:55,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 753 transitions. [2022-04-18 15:49:55,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 753 transitions. [2022-04-18 15:49:55,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:55,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 753 transitions. [2022-04-18 15:49:55,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:55,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:55,945 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:55,947 INFO L186 Difference]: Start difference. First operand has 133 places, 138 transitions, 279 flow. Second operand 6 states and 753 transitions. [2022-04-18 15:49:55,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 234 transitions, 765 flow [2022-04-18 15:49:55,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 234 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:49:55,955 INFO L242 Difference]: Finished difference. Result has 141 places, 164 transitions, 504 flow [2022-04-18 15:49:55,957 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=141, PETRI_TRANSITIONS=164} [2022-04-18 15:49:55,961 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 8 predicate places. [2022-04-18 15:49:55,961 INFO L478 AbstractCegarLoop]: Abstraction has has 141 places, 164 transitions, 504 flow [2022-04-18 15:49:55,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:55,962 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:55,962 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:55,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:49:55,963 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:55,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:55,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1779184503, now seen corresponding path program 1 times [2022-04-18 15:49:55,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:55,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836548648] [2022-04-18 15:49:55,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:55,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:56,074 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 15:49:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836548648] [2022-04-18 15:49:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836548648] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:56,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:56,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794546486] [2022-04-18 15:49:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:56,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:56,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:56,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:56,080 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 149 [2022-04-18 15:49:56,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 164 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:56,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 149 [2022-04-18 15:49:56,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:56,480 INFO L129 PetriNetUnfolder]: 494/1663 cut-off events. [2022-04-18 15:49:56,481 INFO L130 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-04-18 15:49:56,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3364 conditions, 1663 events. 494/1663 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10084 event pairs, 160 based on Foata normal form. 0/1527 useless extension candidates. Maximal degree in co-relation 3312. Up to 645 conditions per place. [2022-04-18 15:49:56,493 INFO L132 encePairwiseOnDemand]: 137/149 looper letters, 122 selfloop transitions, 18 changer transitions 0/226 dead transitions. [2022-04-18 15:49:56,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 226 transitions, 1028 flow [2022-04-18 15:49:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 666 transitions. [2022-04-18 15:49:56,496 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7449664429530202 [2022-04-18 15:49:56,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 666 transitions. [2022-04-18 15:49:56,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 666 transitions. [2022-04-18 15:49:56,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:56,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 666 transitions. [2022-04-18 15:49:56,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.0) internal successors, (666), 6 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 15:49:56,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:56,501 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:56,501 INFO L186 Difference]: Start difference. First operand has 141 places, 164 transitions, 504 flow. Second operand 6 states and 666 transitions. [2022-04-18 15:49:56,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 226 transitions, 1028 flow [2022-04-18 15:49:56,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 226 transitions, 1028 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:56,515 INFO L242 Difference]: Finished difference. Result has 144 places, 162 transitions, 536 flow [2022-04-18 15:49:56,516 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=144, PETRI_TRANSITIONS=162} [2022-04-18 15:49:56,517 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 11 predicate places. [2022-04-18 15:49:56,517 INFO L478 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 536 flow [2022-04-18 15:49:56,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,518 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:56,518 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:56,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:49:56,519 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:56,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:56,520 INFO L85 PathProgramCache]: Analyzing trace with hash -107015263, now seen corresponding path program 1 times [2022-04-18 15:49:56,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:56,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845759078] [2022-04-18 15:49:56,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:56,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:56,709 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 15:49:56,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:56,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845759078] [2022-04-18 15:49:56,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845759078] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:56,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:56,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:56,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979665102] [2022-04-18 15:49:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:56,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:56,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:56,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:56,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:56,713 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-04-18 15:49:56,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 162 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:56,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:56,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-04-18 15:49:56,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:57,158 INFO L129 PetriNetUnfolder]: 591/1945 cut-off events. [2022-04-18 15:49:57,159 INFO L130 PetriNetUnfolder]: For 712/712 co-relation queries the response was YES. [2022-04-18 15:49:57,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 1945 events. 591/1945 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12450 event pairs, 297 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 4074. Up to 1148 conditions per place. [2022-04-18 15:49:57,170 INFO L132 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 48 changer transitions 0/222 dead transitions. [2022-04-18 15:49:57,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 222 transitions, 1028 flow [2022-04-18 15:49:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 660 transitions. [2022-04-18 15:49:57,173 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.738255033557047 [2022-04-18 15:49:57,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 660 transitions. [2022-04-18 15:49:57,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 660 transitions. [2022-04-18 15:49:57,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:57,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 660 transitions. [2022-04-18 15:49:57,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:57,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:57,178 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:57,178 INFO L186 Difference]: Start difference. First operand has 144 places, 162 transitions, 536 flow. Second operand 6 states and 660 transitions. [2022-04-18 15:49:57,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 222 transitions, 1028 flow [2022-04-18 15:49:57,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 222 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:49:57,186 INFO L242 Difference]: Finished difference. Result has 149 places, 205 transitions, 888 flow [2022-04-18 15:49:57,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=149, PETRI_TRANSITIONS=205} [2022-04-18 15:49:57,187 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 16 predicate places. [2022-04-18 15:49:57,187 INFO L478 AbstractCegarLoop]: Abstraction has has 149 places, 205 transitions, 888 flow [2022-04-18 15:49:57,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:57,188 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:57,188 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:57,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:49:57,189 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:57,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:57,189 INFO L85 PathProgramCache]: Analyzing trace with hash 113363352, now seen corresponding path program 1 times [2022-04-18 15:49:57,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:57,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80511689] [2022-04-18 15:49:57,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:57,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:57,333 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 15:49:57,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:57,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80511689] [2022-04-18 15:49:57,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80511689] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:57,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:57,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:57,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627008526] [2022-04-18 15:49:57,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:57,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:57,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:57,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:57,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:57,341 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-04-18 15:49:57,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 205 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:57,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:57,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-04-18 15:49:57,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:57,845 INFO L129 PetriNetUnfolder]: 580/1907 cut-off events. [2022-04-18 15:49:57,846 INFO L130 PetriNetUnfolder]: For 1211/1217 co-relation queries the response was YES. [2022-04-18 15:49:57,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4706 conditions, 1907 events. 580/1907 cut-off events. For 1211/1217 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 12474 event pairs, 124 based on Foata normal form. 0/1805 useless extension candidates. Maximal degree in co-relation 4646. Up to 873 conditions per place. [2022-04-18 15:49:57,860 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 165 selfloop transitions, 75 changer transitions 4/332 dead transitions. [2022-04-18 15:49:57,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 332 transitions, 1940 flow [2022-04-18 15:49:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2022-04-18 15:49:57,863 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.785234899328859 [2022-04-18 15:49:57,863 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2022-04-18 15:49:57,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2022-04-18 15:49:57,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:57,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2022-04-18 15:49:57,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:57,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:57,871 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:57,871 INFO L186 Difference]: Start difference. First operand has 149 places, 205 transitions, 888 flow. Second operand 6 states and 702 transitions. [2022-04-18 15:49:57,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 332 transitions, 1940 flow [2022-04-18 15:49:57,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 332 transitions, 1922 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-04-18 15:49:57,886 INFO L242 Difference]: Finished difference. Result has 159 places, 275 transitions, 1646 flow [2022-04-18 15:49:57,887 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1646, PETRI_PLACES=159, PETRI_TRANSITIONS=275} [2022-04-18 15:49:57,888 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 26 predicate places. [2022-04-18 15:49:57,889 INFO L478 AbstractCegarLoop]: Abstraction has has 159 places, 275 transitions, 1646 flow [2022-04-18 15:49:57,889 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:57,893 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:57,894 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:57,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:49:57,894 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2069446709, now seen corresponding path program 1 times [2022-04-18 15:49:57,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:57,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742153568] [2022-04-18 15:49:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:57,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:58,054 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 15:49:58,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:58,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742153568] [2022-04-18 15:49:58,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742153568] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:58,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:58,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 15:49:58,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267081245] [2022-04-18 15:49:58,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:58,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:58,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:58,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:58,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:58,058 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 149 [2022-04-18 15:49:58,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 275 transitions, 1646 flow. Second operand has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:58,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 149 [2022-04-18 15:49:58,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:58,174 INFO L129 PetriNetUnfolder]: 90/572 cut-off events. [2022-04-18 15:49:58,175 INFO L130 PetriNetUnfolder]: For 498/546 co-relation queries the response was YES. [2022-04-18 15:49:58,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 572 events. 90/572 cut-off events. For 498/546 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2443 event pairs, 3 based on Foata normal form. 8/569 useless extension candidates. Maximal degree in co-relation 1296. Up to 112 conditions per place. [2022-04-18 15:49:58,178 INFO L132 encePairwiseOnDemand]: 143/149 looper letters, 17 selfloop transitions, 6 changer transitions 1/189 dead transitions. [2022-04-18 15:49:58,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 189 transitions, 964 flow [2022-04-18 15:49:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 15:49:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 15:49:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2022-04-18 15:49:58,180 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8053691275167785 [2022-04-18 15:49:58,181 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2022-04-18 15:49:58,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2022-04-18 15:49:58,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:58,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2022-04-18 15:49:58,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,184 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,184 INFO L186 Difference]: Start difference. First operand has 159 places, 275 transitions, 1646 flow. Second operand 5 states and 600 transitions. [2022-04-18 15:49:58,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 189 transitions, 964 flow [2022-04-18 15:49:58,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 189 transitions, 836 flow, removed 55 selfloop flow, removed 7 redundant places. [2022-04-18 15:49:58,192 INFO L242 Difference]: Finished difference. Result has 155 places, 188 transitions, 800 flow [2022-04-18 15:49:58,192 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=155, PETRI_TRANSITIONS=188} [2022-04-18 15:49:58,193 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 22 predicate places. [2022-04-18 15:49:58,193 INFO L478 AbstractCegarLoop]: Abstraction has has 155 places, 188 transitions, 800 flow [2022-04-18 15:49:58,194 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,194 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:58,194 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:58,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:49:58,194 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash -120372656, now seen corresponding path program 1 times [2022-04-18 15:49:58,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:58,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472328956] [2022-04-18 15:49:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:58,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:58,311 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 15:49:58,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:58,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472328956] [2022-04-18 15:49:58,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472328956] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:58,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:58,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:58,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000117092] [2022-04-18 15:49:58,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:58,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:58,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:58,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:58,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:58,315 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-04-18 15:49:58,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 188 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:58,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-04-18 15:49:58,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:58,521 INFO L129 PetriNetUnfolder]: 304/965 cut-off events. [2022-04-18 15:49:58,522 INFO L130 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES. [2022-04-18 15:49:58,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2791 conditions, 965 events. 304/965 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4324 event pairs, 110 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 2730. Up to 651 conditions per place. [2022-04-18 15:49:58,528 INFO L132 encePairwiseOnDemand]: 138/149 looper letters, 99 selfloop transitions, 26 changer transitions 15/224 dead transitions. [2022-04-18 15:49:58,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 224 transitions, 1286 flow [2022-04-18 15:49:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:58,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 635 transitions. [2022-04-18 15:49:58,531 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7102908277404921 [2022-04-18 15:49:58,531 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 635 transitions. [2022-04-18 15:49:58,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 635 transitions. [2022-04-18 15:49:58,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:58,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 635 transitions. [2022-04-18 15:49:58,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:58,535 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 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 15:49:58,535 INFO L186 Difference]: Start difference. First operand has 155 places, 188 transitions, 800 flow. Second operand 6 states and 635 transitions. [2022-04-18 15:49:58,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 224 transitions, 1286 flow [2022-04-18 15:49:58,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 224 transitions, 1273 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 15:49:58,546 INFO L242 Difference]: Finished difference. Result has 160 places, 205 transitions, 1005 flow [2022-04-18 15:49:58,546 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1005, PETRI_PLACES=160, PETRI_TRANSITIONS=205} [2022-04-18 15:49:58,547 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 27 predicate places. [2022-04-18 15:49:58,547 INFO L478 AbstractCegarLoop]: Abstraction has has 160 places, 205 transitions, 1005 flow [2022-04-18 15:49:58,548 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,548 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:58,548 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:58,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:49:58,548 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1469556989, now seen corresponding path program 1 times [2022-04-18 15:49:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:58,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539983224] [2022-04-18 15:49:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:58,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:58,784 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 15:49:58,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:58,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539983224] [2022-04-18 15:49:58,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539983224] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:58,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:58,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 15:49:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817489301] [2022-04-18 15:49:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:58,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-18 15:49:58,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-18 15:49:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-18 15:49:58,787 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-04-18 15:49:58,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 205 transitions, 1005 flow. Second operand has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:58,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:58,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-04-18 15:49:58,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:59,234 INFO L129 PetriNetUnfolder]: 324/1036 cut-off events. [2022-04-18 15:49:59,235 INFO L130 PetriNetUnfolder]: For 1454/1463 co-relation queries the response was YES. [2022-04-18 15:49:59,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3207 conditions, 1036 events. 324/1036 cut-off events. For 1454/1463 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4583 event pairs, 35 based on Foata normal form. 11/1040 useless extension candidates. Maximal degree in co-relation 3133. Up to 533 conditions per place. [2022-04-18 15:49:59,242 INFO L132 encePairwiseOnDemand]: 138/149 looper letters, 156 selfloop transitions, 30 changer transitions 10/267 dead transitions. [2022-04-18 15:49:59,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 267 transitions, 1785 flow [2022-04-18 15:49:59,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 15:49:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-04-18 15:49:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 953 transitions. [2022-04-18 15:49:59,245 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.5814521049420378 [2022-04-18 15:49:59,245 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 953 transitions. [2022-04-18 15:49:59,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 953 transitions. [2022-04-18 15:49:59,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:59,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 953 transitions. [2022-04-18 15:49:59,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.63636363636364) internal successors, (953), 11 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,251 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,251 INFO L186 Difference]: Start difference. First operand has 160 places, 205 transitions, 1005 flow. Second operand 11 states and 953 transitions. [2022-04-18 15:49:59,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 267 transitions, 1785 flow [2022-04-18 15:49:59,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 267 transitions, 1727 flow, removed 25 selfloop flow, removed 1 redundant places. [2022-04-18 15:49:59,264 INFO L242 Difference]: Finished difference. Result has 168 places, 204 transitions, 1005 flow [2022-04-18 15:49:59,264 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1005, PETRI_PLACES=168, PETRI_TRANSITIONS=204} [2022-04-18 15:49:59,265 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 35 predicate places. [2022-04-18 15:49:59,265 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 204 transitions, 1005 flow [2022-04-18 15:49:59,266 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,266 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:59,266 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:59,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 15:49:59,267 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:49:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1135191630, now seen corresponding path program 1 times [2022-04-18 15:49:59,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:59,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337081500] [2022-04-18 15:49:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:59,515 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 15:49:59,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:59,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337081500] [2022-04-18 15:49:59,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337081500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:59,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:59,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:49:59,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407121671] [2022-04-18 15:49:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:59,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:49:59,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:59,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:49:59,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:49:59,519 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:49:59,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 204 transitions, 1005 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:49:59,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:59,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:49:59,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:00,365 INFO L129 PetriNetUnfolder]: 361/1211 cut-off events. [2022-04-18 15:50:00,365 INFO L130 PetriNetUnfolder]: For 1499/1503 co-relation queries the response was YES. [2022-04-18 15:50:00,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3807 conditions, 1211 events. 361/1211 cut-off events. For 1499/1503 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5917 event pairs, 56 based on Foata normal form. 19/1226 useless extension candidates. Maximal degree in co-relation 3730. Up to 476 conditions per place. [2022-04-18 15:50:00,375 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 163 selfloop transitions, 52 changer transitions 37/326 dead transitions. [2022-04-18 15:50:00,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 326 transitions, 1989 flow [2022-04-18 15:50:00,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1146 transitions. [2022-04-18 15:50:00,379 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6409395973154363 [2022-04-18 15:50:00,379 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1146 transitions. [2022-04-18 15:50:00,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1146 transitions. [2022-04-18 15:50:00,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:00,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1146 transitions. [2022-04-18 15:50:00,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 95.5) internal successors, (1146), 12 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:00,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:00,385 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:00,386 INFO L186 Difference]: Start difference. First operand has 168 places, 204 transitions, 1005 flow. Second operand 12 states and 1146 transitions. [2022-04-18 15:50:00,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 326 transitions, 1989 flow [2022-04-18 15:50:00,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 326 transitions, 1903 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-04-18 15:50:00,402 INFO L242 Difference]: Finished difference. Result has 176 places, 212 transitions, 1256 flow [2022-04-18 15:50:00,402 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1256, PETRI_PLACES=176, PETRI_TRANSITIONS=212} [2022-04-18 15:50:00,403 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 43 predicate places. [2022-04-18 15:50:00,403 INFO L478 AbstractCegarLoop]: Abstraction has has 176 places, 212 transitions, 1256 flow [2022-04-18 15:50:00,404 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:00,404 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:00,404 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, 1, 1, 1, 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 15:50:00,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 15:50:00,404 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1485590250, now seen corresponding path program 2 times [2022-04-18 15:50:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:00,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290899659] [2022-04-18 15:50:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:00,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:00,576 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 15:50:00,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:00,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290899659] [2022-04-18 15:50:00,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290899659] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:00,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:00,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 15:50:00,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897492861] [2022-04-18 15:50:00,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:00,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-18 15:50:00,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:00,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-18 15:50:00,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-18 15:50:00,579 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:00,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 212 transitions, 1256 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:00,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:00,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:00,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:01,228 INFO L129 PetriNetUnfolder]: 468/1405 cut-off events. [2022-04-18 15:50:01,228 INFO L130 PetriNetUnfolder]: For 3434/3440 co-relation queries the response was YES. [2022-04-18 15:50:01,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 1405 events. 468/1405 cut-off events. For 3434/3440 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7040 event pairs, 24 based on Foata normal form. 32/1434 useless extension candidates. Maximal degree in co-relation 5068. Up to 436 conditions per place. [2022-04-18 15:50:01,240 INFO L132 encePairwiseOnDemand]: 138/149 looper letters, 241 selfloop transitions, 45 changer transitions 39/399 dead transitions. [2022-04-18 15:50:01,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 399 transitions, 2936 flow [2022-04-18 15:50:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-04-18 15:50:01,261 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6303131991051454 [2022-04-18 15:50:01,261 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-04-18 15:50:01,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-04-18 15:50:01,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:01,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-04-18 15:50:01,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.91666666666667) internal successors, (1127), 12 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:01,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:01,268 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:01,269 INFO L186 Difference]: Start difference. First operand has 176 places, 212 transitions, 1256 flow. Second operand 12 states and 1127 transitions. [2022-04-18 15:50:01,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 399 transitions, 2936 flow [2022-04-18 15:50:01,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 399 transitions, 2927 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-04-18 15:50:01,297 INFO L242 Difference]: Finished difference. Result has 186 places, 237 transitions, 1668 flow [2022-04-18 15:50:01,298 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1247, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1668, PETRI_PLACES=186, PETRI_TRANSITIONS=237} [2022-04-18 15:50:01,298 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 53 predicate places. [2022-04-18 15:50:01,299 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 237 transitions, 1668 flow [2022-04-18 15:50:01,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:01,299 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:01,299 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:01,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 15:50:01,300 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:01,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:01,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1051723022, now seen corresponding path program 3 times [2022-04-18 15:50:01,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:01,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000300508] [2022-04-18 15:50:01,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:01,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:50:01,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:01,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000300508] [2022-04-18 15:50:01,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000300508] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:01,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:01,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:01,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51748289] [2022-04-18 15:50:01,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:01,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:01,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:01,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:01,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:01,522 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:01,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 237 transitions, 1668 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:01,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:01,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:01,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:02,506 INFO L129 PetriNetUnfolder]: 488/1574 cut-off events. [2022-04-18 15:50:02,506 INFO L130 PetriNetUnfolder]: For 5939/5943 co-relation queries the response was YES. [2022-04-18 15:50:02,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6459 conditions, 1574 events. 488/1574 cut-off events. For 5939/5943 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8582 event pairs, 58 based on Foata normal form. 30/1600 useless extension candidates. Maximal degree in co-relation 6370. Up to 636 conditions per place. [2022-04-18 15:50:02,520 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 208 selfloop transitions, 58 changer transitions 51/391 dead transitions. [2022-04-18 15:50:02,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 391 transitions, 2971 flow [2022-04-18 15:50:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1165 transitions. [2022-04-18 15:50:02,524 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.651565995525727 [2022-04-18 15:50:02,524 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1165 transitions. [2022-04-18 15:50:02,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1165 transitions. [2022-04-18 15:50:02,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:02,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1165 transitions. [2022-04-18 15:50:02,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.08333333333333) internal successors, (1165), 12 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:02,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:02,531 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:02,531 INFO L186 Difference]: Start difference. First operand has 186 places, 237 transitions, 1668 flow. Second operand 12 states and 1165 transitions. [2022-04-18 15:50:02,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 391 transitions, 2971 flow [2022-04-18 15:50:02,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 391 transitions, 2959 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:50:02,577 INFO L242 Difference]: Finished difference. Result has 196 places, 246 transitions, 1975 flow [2022-04-18 15:50:02,578 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1659, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1975, PETRI_PLACES=196, PETRI_TRANSITIONS=246} [2022-04-18 15:50:02,579 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 63 predicate places. [2022-04-18 15:50:02,579 INFO L478 AbstractCegarLoop]: Abstraction has has 196 places, 246 transitions, 1975 flow [2022-04-18 15:50:02,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:02,580 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:02,580 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:02,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 15:50:02,580 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:02,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:02,581 INFO L85 PathProgramCache]: Analyzing trace with hash 208957478, now seen corresponding path program 4 times [2022-04-18 15:50:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:02,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692865310] [2022-04-18 15:50:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:02,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:02,821 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 15:50:02,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:02,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692865310] [2022-04-18 15:50:02,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692865310] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:02,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:02,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:02,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020221395] [2022-04-18 15:50:02,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:02,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:02,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:02,823 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:02,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 246 transitions, 1975 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:02,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:02,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:02,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:03,678 INFO L129 PetriNetUnfolder]: 461/1535 cut-off events. [2022-04-18 15:50:03,678 INFO L130 PetriNetUnfolder]: For 7242/7246 co-relation queries the response was YES. [2022-04-18 15:50:03,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6747 conditions, 1535 events. 461/1535 cut-off events. For 7242/7246 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8443 event pairs, 64 based on Foata normal form. 19/1549 useless extension candidates. Maximal degree in co-relation 6653. Up to 613 conditions per place. [2022-04-18 15:50:03,691 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 170 selfloop transitions, 65 changer transitions 41/350 dead transitions. [2022-04-18 15:50:03,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 350 transitions, 2915 flow [2022-04-18 15:50:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 15:50:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-04-18 15:50:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1055 transitions. [2022-04-18 15:50:03,694 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6436851738865161 [2022-04-18 15:50:03,694 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1055 transitions. [2022-04-18 15:50:03,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1055 transitions. [2022-04-18 15:50:03,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:03,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1055 transitions. [2022-04-18 15:50:03,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.9090909090909) internal successors, (1055), 11 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:03,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:03,700 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:03,700 INFO L186 Difference]: Start difference. First operand has 196 places, 246 transitions, 1975 flow. Second operand 11 states and 1055 transitions. [2022-04-18 15:50:03,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 350 transitions, 2915 flow [2022-04-18 15:50:03,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 350 transitions, 2859 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-04-18 15:50:03,758 INFO L242 Difference]: Finished difference. Result has 203 places, 246 transitions, 2074 flow [2022-04-18 15:50:03,758 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2074, PETRI_PLACES=203, PETRI_TRANSITIONS=246} [2022-04-18 15:50:03,759 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 70 predicate places. [2022-04-18 15:50:03,759 INFO L478 AbstractCegarLoop]: Abstraction has has 203 places, 246 transitions, 2074 flow [2022-04-18 15:50:03,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:03,760 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:03,760 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:03,760 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 15:50:03,760 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:03,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1677989122, now seen corresponding path program 5 times [2022-04-18 15:50:03,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:03,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697521589] [2022-04-18 15:50:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:03,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:03,953 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 15:50:03,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:03,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697521589] [2022-04-18 15:50:03,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697521589] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:03,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:03,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:03,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299770189] [2022-04-18 15:50:03,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:03,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:03,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:03,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:03,955 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:03,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 246 transitions, 2074 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:03,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:03,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:03,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:04,770 INFO L129 PetriNetUnfolder]: 656/2085 cut-off events. [2022-04-18 15:50:04,771 INFO L130 PetriNetUnfolder]: For 14741/14746 co-relation queries the response was YES. [2022-04-18 15:50:04,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9509 conditions, 2085 events. 656/2085 cut-off events. For 14741/14746 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 12717 event pairs, 90 based on Foata normal form. 31/2104 useless extension candidates. Maximal degree in co-relation 9412. Up to 629 conditions per place. [2022-04-18 15:50:04,790 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 281 selfloop transitions, 77 changer transitions 56/488 dead transitions. [2022-04-18 15:50:04,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 488 transitions, 4504 flow [2022-04-18 15:50:04,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1170 transitions. [2022-04-18 15:50:04,794 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2022-04-18 15:50:04,794 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1170 transitions. [2022-04-18 15:50:04,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1170 transitions. [2022-04-18 15:50:04,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:04,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1170 transitions. [2022-04-18 15:50:04,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.5) internal successors, (1170), 12 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:04,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:04,801 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:04,801 INFO L186 Difference]: Start difference. First operand has 203 places, 246 transitions, 2074 flow. Second operand 12 states and 1170 transitions. [2022-04-18 15:50:04,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 488 transitions, 4504 flow [2022-04-18 15:50:04,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 488 transitions, 4385 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-04-18 15:50:04,880 INFO L242 Difference]: Finished difference. Result has 209 places, 284 transitions, 2800 flow [2022-04-18 15:50:04,880 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1991, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2800, PETRI_PLACES=209, PETRI_TRANSITIONS=284} [2022-04-18 15:50:04,881 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 76 predicate places. [2022-04-18 15:50:04,881 INFO L478 AbstractCegarLoop]: Abstraction has has 209 places, 284 transitions, 2800 flow [2022-04-18 15:50:04,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:04,882 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:04,882 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:04,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 15:50:04,882 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:04,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:04,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2118779142, now seen corresponding path program 6 times [2022-04-18 15:50:04,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:04,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532813778] [2022-04-18 15:50:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:04,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:50:05,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:05,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532813778] [2022-04-18 15:50:05,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532813778] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:05,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:05,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276710393] [2022-04-18 15:50:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:05,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:05,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:05,104 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:05,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 284 transitions, 2800 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:05,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:05,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:05,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:06,153 INFO L129 PetriNetUnfolder]: 677/2193 cut-off events. [2022-04-18 15:50:06,153 INFO L130 PetriNetUnfolder]: For 19883/19888 co-relation queries the response was YES. [2022-04-18 15:50:06,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10409 conditions, 2193 events. 677/2193 cut-off events. For 19883/19888 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13835 event pairs, 97 based on Foata normal form. 31/2216 useless extension candidates. Maximal degree in co-relation 10307. Up to 931 conditions per place. [2022-04-18 15:50:06,173 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 226 selfloop transitions, 84 changer transitions 52/436 dead transitions. [2022-04-18 15:50:06,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 436 transitions, 4314 flow [2022-04-18 15:50:06,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 15:50:06,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-04-18 15:50:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1240 transitions. [2022-04-18 15:50:06,176 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6401652039235932 [2022-04-18 15:50:06,176 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1240 transitions. [2022-04-18 15:50:06,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1240 transitions. [2022-04-18 15:50:06,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:06,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1240 transitions. [2022-04-18 15:50:06,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:06,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:06,183 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:06,183 INFO L186 Difference]: Start difference. First operand has 209 places, 284 transitions, 2800 flow. Second operand 13 states and 1240 transitions. [2022-04-18 15:50:06,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 436 transitions, 4314 flow [2022-04-18 15:50:06,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 436 transitions, 4221 flow, removed 39 selfloop flow, removed 5 redundant places. [2022-04-18 15:50:06,334 INFO L242 Difference]: Finished difference. Result has 223 places, 295 transitions, 3205 flow [2022-04-18 15:50:06,336 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2713, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3205, PETRI_PLACES=223, PETRI_TRANSITIONS=295} [2022-04-18 15:50:06,337 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 90 predicate places. [2022-04-18 15:50:06,337 INFO L478 AbstractCegarLoop]: Abstraction has has 223 places, 295 transitions, 3205 flow [2022-04-18 15:50:06,338 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:06,344 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:06,344 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:06,344 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 15:50:06,345 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:06,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:06,345 INFO L85 PathProgramCache]: Analyzing trace with hash 818916668, now seen corresponding path program 7 times [2022-04-18 15:50:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:06,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090530966] [2022-04-18 15:50:06,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:06,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:06,566 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 15:50:06,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:06,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090530966] [2022-04-18 15:50:06,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090530966] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:06,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:06,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:06,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424276326] [2022-04-18 15:50:06,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:06,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:06,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:06,569 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:06,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 295 transitions, 3205 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:06,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:06,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:06,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:07,566 INFO L129 PetriNetUnfolder]: 607/2076 cut-off events. [2022-04-18 15:50:07,566 INFO L130 PetriNetUnfolder]: For 21938/21943 co-relation queries the response was YES. [2022-04-18 15:50:07,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10167 conditions, 2076 events. 607/2076 cut-off events. For 21938/21943 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13091 event pairs, 89 based on Foata normal form. 31/2095 useless extension candidates. Maximal degree in co-relation 10059. Up to 822 conditions per place. [2022-04-18 15:50:07,582 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 260 selfloop transitions, 81 changer transitions 61/476 dead transitions. [2022-04-18 15:50:07,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 476 transitions, 5030 flow [2022-04-18 15:50:07,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:07,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1167 transitions. [2022-04-18 15:50:07,585 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6526845637583892 [2022-04-18 15:50:07,585 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1167 transitions. [2022-04-18 15:50:07,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1167 transitions. [2022-04-18 15:50:07,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:07,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1167 transitions. [2022-04-18 15:50:07,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.25) internal successors, (1167), 12 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:07,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:07,591 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:07,591 INFO L186 Difference]: Start difference. First operand has 223 places, 295 transitions, 3205 flow. Second operand 12 states and 1167 transitions. [2022-04-18 15:50:07,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 476 transitions, 5030 flow [2022-04-18 15:50:07,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 476 transitions, 4835 flow, removed 18 selfloop flow, removed 8 redundant places. [2022-04-18 15:50:07,675 INFO L242 Difference]: Finished difference. Result has 230 places, 313 transitions, 3567 flow [2022-04-18 15:50:07,676 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3025, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3567, PETRI_PLACES=230, PETRI_TRANSITIONS=313} [2022-04-18 15:50:07,676 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 97 predicate places. [2022-04-18 15:50:07,676 INFO L478 AbstractCegarLoop]: Abstraction has has 230 places, 313 transitions, 3567 flow [2022-04-18 15:50:07,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:07,677 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:07,677 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:07,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 15:50:07,677 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:07,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:07,678 INFO L85 PathProgramCache]: Analyzing trace with hash 284753226, now seen corresponding path program 8 times [2022-04-18 15:50:07,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:07,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311310744] [2022-04-18 15:50:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:07,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:07,870 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 15:50:07,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:07,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311310744] [2022-04-18 15:50:07,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311310744] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:07,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:07,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915082676] [2022-04-18 15:50:07,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:07,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:07,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:07,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:07,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:07,873 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:07,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 313 transitions, 3567 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:07,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:07,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:07,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:08,906 INFO L129 PetriNetUnfolder]: 745/2520 cut-off events. [2022-04-18 15:50:08,906 INFO L130 PetriNetUnfolder]: For 34868/34875 co-relation queries the response was YES. [2022-04-18 15:50:08,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12566 conditions, 2520 events. 745/2520 cut-off events. For 34868/34875 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17047 event pairs, 102 based on Foata normal form. 33/2538 useless extension candidates. Maximal degree in co-relation 12453. Up to 873 conditions per place. [2022-04-18 15:50:08,925 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 287 selfloop transitions, 96 changer transitions 53/510 dead transitions. [2022-04-18 15:50:08,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 510 transitions, 5799 flow [2022-04-18 15:50:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-04-18 15:50:08,928 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-04-18 15:50:08,928 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-04-18 15:50:08,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-04-18 15:50:08,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:08,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-04-18 15:50:08,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:08,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:08,933 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:08,933 INFO L186 Difference]: Start difference. First operand has 230 places, 313 transitions, 3567 flow. Second operand 12 states and 1162 transitions. [2022-04-18 15:50:08,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 510 transitions, 5799 flow [2022-04-18 15:50:09,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 510 transitions, 5659 flow, removed 46 selfloop flow, removed 6 redundant places. [2022-04-18 15:50:09,133 INFO L242 Difference]: Finished difference. Result has 241 places, 339 transitions, 4219 flow [2022-04-18 15:50:09,134 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3440, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4219, PETRI_PLACES=241, PETRI_TRANSITIONS=339} [2022-04-18 15:50:09,135 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 108 predicate places. [2022-04-18 15:50:09,135 INFO L478 AbstractCegarLoop]: Abstraction has has 241 places, 339 transitions, 4219 flow [2022-04-18 15:50:09,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:09,136 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:09,136 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:09,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 15:50:09,136 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash -232682746, now seen corresponding path program 9 times [2022-04-18 15:50:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:09,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778296859] [2022-04-18 15:50:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:09,315 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 15:50:09,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:09,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778296859] [2022-04-18 15:50:09,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778296859] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:09,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:09,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:09,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565802174] [2022-04-18 15:50:09,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:09,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:09,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:09,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:09,318 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:09,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 339 transitions, 4219 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:09,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:09,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:09,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:10,492 INFO L129 PetriNetUnfolder]: 810/2799 cut-off events. [2022-04-18 15:50:10,492 INFO L130 PetriNetUnfolder]: For 46579/46587 co-relation queries the response was YES. [2022-04-18 15:50:10,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14473 conditions, 2799 events. 810/2799 cut-off events. For 46579/46587 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 19641 event pairs, 134 based on Foata normal form. 34/2816 useless extension candidates. Maximal degree in co-relation 14355. Up to 646 conditions per place. [2022-04-18 15:50:10,513 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 309 selfloop transitions, 100 changer transitions 54/537 dead transitions. [2022-04-18 15:50:10,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 537 transitions, 6445 flow [2022-04-18 15:50:10,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-04-18 15:50:10,521 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-04-18 15:50:10,521 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-04-18 15:50:10,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-04-18 15:50:10,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:10,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-04-18 15:50:10,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:10,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:10,526 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:10,526 INFO L186 Difference]: Start difference. First operand has 241 places, 339 transitions, 4219 flow. Second operand 12 states and 1162 transitions. [2022-04-18 15:50:10,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 537 transitions, 6445 flow [2022-04-18 15:50:10,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 537 transitions, 6255 flow, removed 61 selfloop flow, removed 5 redundant places. [2022-04-18 15:50:10,802 INFO L242 Difference]: Finished difference. Result has 254 places, 362 transitions, 4839 flow [2022-04-18 15:50:10,802 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4037, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4839, PETRI_PLACES=254, PETRI_TRANSITIONS=362} [2022-04-18 15:50:10,803 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 121 predicate places. [2022-04-18 15:50:10,803 INFO L478 AbstractCegarLoop]: Abstraction has has 254 places, 362 transitions, 4839 flow [2022-04-18 15:50:10,803 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:10,803 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:10,804 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:10,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 15:50:10,804 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 538657098, now seen corresponding path program 10 times [2022-04-18 15:50:10,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:10,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461869497] [2022-04-18 15:50:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:10,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:11,022 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 15:50:11,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:11,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461869497] [2022-04-18 15:50:11,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461869497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:11,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:11,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:11,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942033875] [2022-04-18 15:50:11,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:11,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:11,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:11,025 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:11,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 362 transitions, 4839 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:11,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:11,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:11,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:12,168 INFO L129 PetriNetUnfolder]: 804/2825 cut-off events. [2022-04-18 15:50:12,168 INFO L130 PetriNetUnfolder]: For 56733/56741 co-relation queries the response was YES. [2022-04-18 15:50:12,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15040 conditions, 2825 events. 804/2825 cut-off events. For 56733/56741 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 20236 event pairs, 143 based on Foata normal form. 23/2830 useless extension candidates. Maximal degree in co-relation 14914. Up to 1256 conditions per place. [2022-04-18 15:50:12,200 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 249 selfloop transitions, 97 changer transitions 46/466 dead transitions. [2022-04-18 15:50:12,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 466 transitions, 6033 flow [2022-04-18 15:50:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-04-18 15:50:12,203 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6331096196868009 [2022-04-18 15:50:12,203 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-04-18 15:50:12,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-04-18 15:50:12,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:12,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-04-18 15:50:12,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:12,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:12,208 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:12,208 INFO L186 Difference]: Start difference. First operand has 254 places, 362 transitions, 4839 flow. Second operand 12 states and 1132 transitions. [2022-04-18 15:50:12,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 466 transitions, 6033 flow [2022-04-18 15:50:12,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 466 transitions, 5836 flow, removed 96 selfloop flow, removed 3 redundant places. [2022-04-18 15:50:12,463 INFO L242 Difference]: Finished difference. Result has 266 places, 364 transitions, 4898 flow [2022-04-18 15:50:12,464 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4646, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4898, PETRI_PLACES=266, PETRI_TRANSITIONS=364} [2022-04-18 15:50:12,464 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 133 predicate places. [2022-04-18 15:50:12,464 INFO L478 AbstractCegarLoop]: Abstraction has has 266 places, 364 transitions, 4898 flow [2022-04-18 15:50:12,465 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:12,465 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:12,465 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:12,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 15:50:12,465 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash 592689648, now seen corresponding path program 11 times [2022-04-18 15:50:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:12,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969618102] [2022-04-18 15:50:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:12,686 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 15:50:12,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:12,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969618102] [2022-04-18 15:50:12,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969618102] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:12,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:12,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102980305] [2022-04-18 15:50:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:12,687 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:12,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:12,689 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:12,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 364 transitions, 4898 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:12,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:12,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:12,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:13,795 INFO L129 PetriNetUnfolder]: 834/2940 cut-off events. [2022-04-18 15:50:13,795 INFO L130 PetriNetUnfolder]: For 65000/65008 co-relation queries the response was YES. [2022-04-18 15:50:13,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15906 conditions, 2940 events. 834/2940 cut-off events. For 65000/65008 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 21289 event pairs, 159 based on Foata normal form. 34/2953 useless extension candidates. Maximal degree in co-relation 15775. Up to 1256 conditions per place. [2022-04-18 15:50:13,818 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 275 selfloop transitions, 99 changer transitions 57/505 dead transitions. [2022-04-18 15:50:13,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 505 transitions, 6621 flow [2022-04-18 15:50:13,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 15:50:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-04-18 15:50:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1222 transitions. [2022-04-18 15:50:13,822 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6308724832214765 [2022-04-18 15:50:13,822 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1222 transitions. [2022-04-18 15:50:13,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1222 transitions. [2022-04-18 15:50:13,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:13,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1222 transitions. [2022-04-18 15:50:13,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:13,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:13,828 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:13,828 INFO L186 Difference]: Start difference. First operand has 266 places, 364 transitions, 4898 flow. Second operand 13 states and 1222 transitions. [2022-04-18 15:50:13,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 505 transitions, 6621 flow [2022-04-18 15:50:14,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 505 transitions, 6387 flow, removed 19 selfloop flow, removed 8 redundant places. [2022-04-18 15:50:14,035 INFO L242 Difference]: Finished difference. Result has 277 places, 376 transitions, 5328 flow [2022-04-18 15:50:14,035 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4678, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5328, PETRI_PLACES=277, PETRI_TRANSITIONS=376} [2022-04-18 15:50:14,036 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 144 predicate places. [2022-04-18 15:50:14,036 INFO L478 AbstractCegarLoop]: Abstraction has has 277 places, 376 transitions, 5328 flow [2022-04-18 15:50:14,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:14,036 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:14,036 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:14,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 15:50:14,037 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 907866524, now seen corresponding path program 12 times [2022-04-18 15:50:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045033522] [2022-04-18 15:50:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:14,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:14,225 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 15:50:14,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:14,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045033522] [2022-04-18 15:50:14,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045033522] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:14,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:14,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:14,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612308607] [2022-04-18 15:50:14,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:14,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:14,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:14,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:14,229 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:14,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 376 transitions, 5328 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:14,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:14,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:14,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:15,491 INFO L129 PetriNetUnfolder]: 764/2806 cut-off events. [2022-04-18 15:50:15,491 INFO L130 PetriNetUnfolder]: For 63952/63960 co-relation queries the response was YES. [2022-04-18 15:50:15,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15162 conditions, 2806 events. 764/2806 cut-off events. For 63952/63960 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 20404 event pairs, 139 based on Foata normal form. 34/2822 useless extension candidates. Maximal degree in co-relation 15024. Up to 1175 conditions per place. [2022-04-18 15:50:15,509 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 277 selfloop transitions, 105 changer transitions 58/514 dead transitions. [2022-04-18 15:50:15,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 514 transitions, 6975 flow [2022-04-18 15:50:15,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 15:50:15,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-04-18 15:50:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1228 transitions. [2022-04-18 15:50:15,512 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6339700567888488 [2022-04-18 15:50:15,512 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1228 transitions. [2022-04-18 15:50:15,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1228 transitions. [2022-04-18 15:50:15,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:15,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1228 transitions. [2022-04-18 15:50:15,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.46153846153847) internal successors, (1228), 13 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:15,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:15,516 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:15,516 INFO L186 Difference]: Start difference. First operand has 277 places, 376 transitions, 5328 flow. Second operand 13 states and 1228 transitions. [2022-04-18 15:50:15,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 514 transitions, 6975 flow [2022-04-18 15:50:15,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 514 transitions, 6666 flow, removed 58 selfloop flow, removed 7 redundant places. [2022-04-18 15:50:15,717 INFO L242 Difference]: Finished difference. Result has 286 places, 382 transitions, 5478 flow [2022-04-18 15:50:15,717 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5028, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5478, PETRI_PLACES=286, PETRI_TRANSITIONS=382} [2022-04-18 15:50:15,718 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 153 predicate places. [2022-04-18 15:50:15,718 INFO L478 AbstractCegarLoop]: Abstraction has has 286 places, 382 transitions, 5478 flow [2022-04-18 15:50:15,718 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:15,718 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:15,719 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:15,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 15:50:15,719 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1675345018, now seen corresponding path program 13 times [2022-04-18 15:50:15,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:15,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131091223] [2022-04-18 15:50:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:15,904 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 15:50:15,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:15,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131091223] [2022-04-18 15:50:15,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131091223] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:15,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:15,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 15:50:15,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970339284] [2022-04-18 15:50:15,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:15,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 15:50:15,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:15,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 15:50:15,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-18 15:50:15,906 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-04-18 15:50:15,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 382 transitions, 5478 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:15,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:15,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-04-18 15:50:15,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:16,961 INFO L129 PetriNetUnfolder]: 692/2673 cut-off events. [2022-04-18 15:50:16,962 INFO L130 PetriNetUnfolder]: For 56657/56665 co-relation queries the response was YES. [2022-04-18 15:50:16,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14213 conditions, 2673 events. 692/2673 cut-off events. For 56657/56665 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 19497 event pairs, 125 based on Foata normal form. 34/2688 useless extension candidates. Maximal degree in co-relation 14073. Up to 1002 conditions per place. [2022-04-18 15:50:16,984 INFO L132 encePairwiseOnDemand]: 130/149 looper letters, 286 selfloop transitions, 110 changer transitions 70/530 dead transitions. [2022-04-18 15:50:16,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 530 transitions, 7087 flow [2022-04-18 15:50:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 15:50:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 15:50:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1152 transitions. [2022-04-18 15:50:16,987 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6442953020134228 [2022-04-18 15:50:16,987 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1152 transitions. [2022-04-18 15:50:16,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1152 transitions. [2022-04-18 15:50:16,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:16,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1152 transitions. [2022-04-18 15:50:16,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.0) internal successors, (1152), 12 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:16,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:16,991 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:16,991 INFO L186 Difference]: Start difference. First operand has 286 places, 382 transitions, 5478 flow. Second operand 12 states and 1152 transitions. [2022-04-18 15:50:16,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 530 transitions, 7087 flow [2022-04-18 15:50:17,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 530 transitions, 6821 flow, removed 38 selfloop flow, removed 17 redundant places. [2022-04-18 15:50:17,207 INFO L242 Difference]: Finished difference. Result has 280 places, 369 transitions, 5470 flow [2022-04-18 15:50:17,207 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5196, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5470, PETRI_PLACES=280, PETRI_TRANSITIONS=369} [2022-04-18 15:50:17,207 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 147 predicate places. [2022-04-18 15:50:17,208 INFO L478 AbstractCegarLoop]: Abstraction has has 280 places, 369 transitions, 5470 flow [2022-04-18 15:50:17,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:17,208 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:50:17,208 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:17,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 15:50:17,208 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-04-18 15:50:17,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:50:17,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1648901000, now seen corresponding path program 1 times [2022-04-18 15:50:17,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:50:17,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844489256] [2022-04-18 15:50:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:50:17,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:50:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:50:17,380 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 15:50:17,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:50:17,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844489256] [2022-04-18 15:50:17,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844489256] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:50:17,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:50:17,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 15:50:17,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002704634] [2022-04-18 15:50:17,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:50:17,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-18 15:50:17,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:50:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-18 15:50:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-18 15:50:17,384 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-04-18 15:50:17,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 369 transitions, 5470 flow. Second operand has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:17,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:50:17,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-04-18 15:50:17,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:50:18,020 INFO L129 PetriNetUnfolder]: 591/2031 cut-off events. [2022-04-18 15:50:18,020 INFO L130 PetriNetUnfolder]: For 45958/45958 co-relation queries the response was YES. [2022-04-18 15:50:18,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12402 conditions, 2031 events. 591/2031 cut-off events. For 45958/45958 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13337 event pairs, 218 based on Foata normal form. 44/2049 useless extension candidates. Maximal degree in co-relation 12269. Up to 1183 conditions per place. [2022-04-18 15:50:18,038 INFO L132 encePairwiseOnDemand]: 139/149 looper letters, 0 selfloop transitions, 0 changer transitions 477/477 dead transitions. [2022-04-18 15:50:18,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 477 transitions, 8524 flow [2022-04-18 15:50:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 15:50:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-04-18 15:50:18,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 941 transitions. [2022-04-18 15:50:18,041 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.574130567419158 [2022-04-18 15:50:18,041 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 941 transitions. [2022-04-18 15:50:18,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 941 transitions. [2022-04-18 15:50:18,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:50:18,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 941 transitions. [2022-04-18 15:50:18,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.54545454545455) internal successors, (941), 11 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:18,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:18,044 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:18,045 INFO L186 Difference]: Start difference. First operand has 280 places, 369 transitions, 5470 flow. Second operand 11 states and 941 transitions. [2022-04-18 15:50:18,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 477 transitions, 8524 flow [2022-04-18 15:50:18,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 477 transitions, 7679 flow, removed 182 selfloop flow, removed 19 redundant places. [2022-04-18 15:50:18,186 INFO L242 Difference]: Finished difference. Result has 259 places, 0 transitions, 0 flow [2022-04-18 15:50:18,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4813, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=259, PETRI_TRANSITIONS=0} [2022-04-18 15:50:18,187 INFO L335 CegarLoopForPetriNet]: 133 programPoint places, 126 predicate places. [2022-04-18 15:50:18,187 INFO L478 AbstractCegarLoop]: Abstraction has has 259 places, 0 transitions, 0 flow [2022-04-18 15:50:18,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:50:18,190 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-04-18 15:50:18,190 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-04-18 15:50:18,190 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-04-18 15:50:18,190 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-04-18 15:50:18,191 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-04-18 15:50:18,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 15:50:18,195 INFO L719 BasicCegarLoop]: Path program histogram: [13, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:50:18,198 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:50:18,198 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:50:18,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:50:18 BasicIcfg [2022-04-18 15:50:18,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:50:18,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:50:18,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:50:18,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:50:18,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:54" (3/4) ... [2022-04-18 15:50:18,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 15:50:18,209 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-04-18 15:50:18,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-04-18 15:50:18,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 15:50:18,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 15:50:18,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 15:50:18,247 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 15:50:18,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:50:18,248 INFO L158 Benchmark]: Toolchain (without parser) took 24636.44ms. Allocated memory was 88.1MB in the beginning and 1.0GB in the end (delta: 912.3MB). Free memory was 54.8MB in the beginning and 556.6MB in the end (delta: -501.8MB). Peak memory consumption was 410.1MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,248 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 44.6MB in the beginning and 44.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:50:18,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.37ms. Allocated memory is still 88.1MB. Free memory was 54.6MB in the beginning and 54.3MB in the end (delta: 285.3kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.04ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 52.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,249 INFO L158 Benchmark]: Boogie Preprocessor took 44.18ms. Allocated memory is still 88.1MB. Free memory was 52.1MB in the beginning and 49.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,249 INFO L158 Benchmark]: RCFGBuilder took 435.64ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 49.8MB in the beginning and 83.3MB in the end (delta: -33.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,249 INFO L158 Benchmark]: TraceAbstraction took 23548.37ms. Allocated memory was 109.1MB in the beginning and 1.0GB in the end (delta: 891.3MB). Free memory was 82.7MB in the beginning and 559.8MB in the end (delta: -477.0MB). Peak memory consumption was 414.3MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,249 INFO L158 Benchmark]: Witness Printer took 46.25ms. Allocated memory is still 1.0GB. Free memory was 559.8MB in the beginning and 556.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 15:50:18,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 44.6MB in the beginning and 44.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.37ms. Allocated memory is still 88.1MB. Free memory was 54.6MB in the beginning and 54.3MB in the end (delta: 285.3kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.04ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 52.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.18ms. Allocated memory is still 88.1MB. Free memory was 52.1MB in the beginning and 49.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.64ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 49.8MB in the beginning and 83.3MB in the end (delta: -33.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 23548.37ms. Allocated memory was 109.1MB in the beginning and 1.0GB in the end (delta: 891.3MB). Free memory was 82.7MB in the beginning and 559.8MB in the end (delta: -477.0MB). Peak memory consumption was 414.3MB. Max. memory is 16.1GB. * Witness Printer took 46.25ms. Allocated memory is still 1.0GB. Free memory was 559.8MB in the beginning and 556.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 198 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 23.4s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3164 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3164 mSDsluCounter, 1721 SdHoareTripleChecker+Invalid, 6.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 997 mSDsCounter, 1680 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11419 IncrementalHoareTripleChecker+Invalid, 13099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1680 mSolverCounterUnsat, 729 mSDtfsCounter, 11419 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 323 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5478occurred in iteration=19, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1723 NumberOfCodeBlocks, 1723 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1702 ConstructedInterpolants, 0 QuantifiedInterpolants, 11893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 15:50:18,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE