./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.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/13-privatized_27-multiple-protecting2_true.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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:48:47,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:48:47,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:48:47,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:48:47,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:48:47,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:48:47,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:48:47,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:48:47,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:48:47,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:48:47,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:48:47,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:48:47,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:48:47,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:48:47,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:48:47,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:48:47,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:48:47,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:48:47,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:48:47,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:48:47,102 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:48:47,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:48:47,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:48:47,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:48:47,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:48:47,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:48:47,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:48:47,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:48:47,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:48:47,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:48:47,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:48:47,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:48:47,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:48:47,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:48:47,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:48:47,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:48:47,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:48:47,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:48:47,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:48:47,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:48:47,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:48:47,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:48:47,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:48:47,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:48:47,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:48:47,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:48:47,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:48:47,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:48:47,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:48:47,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:48:47,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:48:47,146 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:48:47,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:48:47,147 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:48:47,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:48:47,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:48:47,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:48:47,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:48:47,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:48:47,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:48:47,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:48:47,148 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:48:47,149 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:48:47,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:48:47,149 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:48:47,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:48:47,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:48:47,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:48:47,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:48:47,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:48:47,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:48:47,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:48:47,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:48:47,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:48:47,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:48:47,151 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:48:47,151 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:48:47,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:48:47,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-04-18 15:48:47,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:48:47,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:48:47,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:48:47,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:48:47,368 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:48:47,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-04-18 15:48:47,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7227634/24f2b141438d4aa8b623641136f829cc/FLAG9e634ac7d [2022-04-18 15:48:47,824 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:48:47,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-04-18 15:48:47,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7227634/24f2b141438d4aa8b623641136f829cc/FLAG9e634ac7d [2022-04-18 15:48:48,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7227634/24f2b141438d4aa8b623641136f829cc [2022-04-18 15:48:48,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:48:48,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:48:48,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:48:48,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:48:48,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:48:48,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226bfc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48, skipping insertion in model container [2022-04-18 15:48:48,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:48:48,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:48:48,339 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/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-04-18 15:48:48,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:48:48,450 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:48:48,461 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/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-04-18 15:48:48,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:48:48,512 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:48:48,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48 WrapperNode [2022-04-18 15:48:48,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:48:48,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:48:48,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:48:48,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:48:48,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,574 INFO L137 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-04-18 15:48:48,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:48:48,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:48:48,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:48:48,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:48:48,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:48:48,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:48:48,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:48:48,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:48:48,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:48:48,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:48:48,646 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 15:48:48,656 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 15:48:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:48:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 15:48:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 15:48:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:48:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:48:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:48:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:48:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 15:48:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 15:48:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:48:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:48:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:48:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:48:48,681 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 15:48:48,767 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:48:48,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:48:49,027 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:48:49,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:48:49,033 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 15:48:49,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:48:49 BoogieIcfgContainer [2022-04-18 15:48:49,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:48:49,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:48:49,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:48:49,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:48:49,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:48:48" (1/3) ... [2022-04-18 15:48:49,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505913f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:48:49, skipping insertion in model container [2022-04-18 15:48:49,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (2/3) ... [2022-04-18 15:48:49,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505913f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:48:49, skipping insertion in model container [2022-04-18 15:48:49,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:48:49" (3/3) ... [2022-04-18 15:48:49,054 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-04-18 15:48:49,057 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:48:49,057 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:48:49,058 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-04-18 15:48:49,058 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:48:49,130 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 15:48:49,176 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:48:49,182 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 15:48:49,182 INFO L341 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-04-18 15:48:49,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 211 transitions, 438 flow [2022-04-18 15:48:49,271 INFO L129 PetriNetUnfolder]: 4/209 cut-off events. [2022-04-18 15:48:49,272 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 15:48:49,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 209 events. 4/209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-04-18 15:48:49,279 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 211 transitions, 438 flow [2022-04-18 15:48:49,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 199 transitions, 407 flow [2022-04-18 15:48:49,305 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2022-04-18 15:48:49,305 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:48:49,305 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:49,306 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:49,306 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1475861614, now seen corresponding path program 1 times [2022-04-18 15:48:49,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:49,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777489922] [2022-04-18 15:48:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:49,518 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 15:48:49,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:49,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777489922] [2022-04-18 15:48:49,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777489922] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:49,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:49,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:49,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771141497] [2022-04-18 15:48:49,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:49,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:49,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:49,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:49,558 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 211 [2022-04-18 15:48:49,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 199 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:49,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 211 [2022-04-18 15:48:49,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:49,778 INFO L129 PetriNetUnfolder]: 109/1046 cut-off events. [2022-04-18 15:48:49,778 INFO L130 PetriNetUnfolder]: For 21/24 co-relation queries the response was YES. [2022-04-18 15:48:49,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 1046 events. 109/1046 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6145 event pairs, 39 based on Foata normal form. 54/963 useless extension candidates. Maximal degree in co-relation 1265. Up to 169 conditions per place. [2022-04-18 15:48:49,795 INFO L132 encePairwiseOnDemand]: 192/211 looper letters, 26 selfloop transitions, 10 changer transitions 0/203 dead transitions. [2022-04-18 15:48:49,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 203 transitions, 493 flow [2022-04-18 15:48:49,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:49,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-04-18 15:48:49,811 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9210110584518167 [2022-04-18 15:48:49,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-04-18 15:48:49,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-04-18 15:48:49,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:49,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-04-18 15:48:49,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,838 INFO L186 Difference]: Start difference. First operand has 202 places, 199 transitions, 407 flow. Second operand 3 states and 583 transitions. [2022-04-18 15:48:49,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 203 transitions, 493 flow [2022-04-18 15:48:49,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 203 transitions, 485 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 15:48:49,849 INFO L242 Difference]: Finished difference. Result has 197 places, 197 transitions, 460 flow [2022-04-18 15:48:49,851 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=197, PETRI_TRANSITIONS=197} [2022-04-18 15:48:49,855 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-04-18 15:48:49,856 INFO L478 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 460 flow [2022-04-18 15:48:49,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,856 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:49,857 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:49,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:48:49,857 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:49,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash -321305103, now seen corresponding path program 1 times [2022-04-18 15:48:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:49,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921078233] [2022-04-18 15:48:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:49,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:49,956 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 15:48:49,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:49,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921078233] [2022-04-18 15:48:49,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921078233] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:49,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:49,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:49,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558665036] [2022-04-18 15:48:49,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:49,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:49,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:49,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:49,961 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 211 [2022-04-18 15:48:49,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 197 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:49,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 211 [2022-04-18 15:48:49,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:50,156 INFO L129 PetriNetUnfolder]: 128/1278 cut-off events. [2022-04-18 15:48:50,156 INFO L130 PetriNetUnfolder]: For 230/254 co-relation queries the response was YES. [2022-04-18 15:48:50,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1278 events. 128/1278 cut-off events. For 230/254 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8284 event pairs, 54 based on Foata normal form. 2/1159 useless extension candidates. Maximal degree in co-relation 1708. Up to 257 conditions per place. [2022-04-18 15:48:50,170 INFO L132 encePairwiseOnDemand]: 204/211 looper letters, 41 selfloop transitions, 8 changer transitions 0/214 dead transitions. [2022-04-18 15:48:50,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 214 transitions, 634 flow [2022-04-18 15:48:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-04-18 15:48:50,172 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2022-04-18 15:48:50,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-04-18 15:48:50,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-04-18 15:48:50,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:50,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-04-18 15:48:50,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,176 INFO L186 Difference]: Start difference. First operand has 197 places, 197 transitions, 460 flow. Second operand 3 states and 565 transitions. [2022-04-18 15:48:50,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 214 transitions, 634 flow [2022-04-18 15:48:50,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 214 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:50,187 INFO L242 Difference]: Finished difference. Result has 199 places, 204 transitions, 512 flow [2022-04-18 15:48:50,187 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=199, PETRI_TRANSITIONS=204} [2022-04-18 15:48:50,188 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-04-18 15:48:50,188 INFO L478 AbstractCegarLoop]: Abstraction has has 199 places, 204 transitions, 512 flow [2022-04-18 15:48:50,189 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,189 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:50,189 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 15:48:50,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:48:50,189 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -733487280, now seen corresponding path program 1 times [2022-04-18 15:48:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605363785] [2022-04-18 15:48:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:50,241 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 15:48:50,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:50,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605363785] [2022-04-18 15:48:50,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605363785] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:50,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:50,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:50,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916114290] [2022-04-18 15:48:50,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:50,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:50,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:50,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:50,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:50,244 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 211 [2022-04-18 15:48:50,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 204 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:50,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 211 [2022-04-18 15:48:50,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:50,715 INFO L129 PetriNetUnfolder]: 513/4742 cut-off events. [2022-04-18 15:48:50,715 INFO L130 PetriNetUnfolder]: For 452/502 co-relation queries the response was YES. [2022-04-18 15:48:50,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6381 conditions, 4742 events. 513/4742 cut-off events. For 452/502 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 50229 event pairs, 119 based on Foata normal form. 12/4107 useless extension candidates. Maximal degree in co-relation 6324. Up to 428 conditions per place. [2022-04-18 15:48:50,744 INFO L132 encePairwiseOnDemand]: 202/211 looper letters, 19 selfloop transitions, 6 changer transitions 0/211 dead transitions. [2022-04-18 15:48:50,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 211 transitions, 577 flow [2022-04-18 15:48:50,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:50,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2022-04-18 15:48:50,747 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9162717219589257 [2022-04-18 15:48:50,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2022-04-18 15:48:50,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2022-04-18 15:48:50,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:50,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2022-04-18 15:48:50,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 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 15:48:50,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,751 INFO L186 Difference]: Start difference. First operand has 199 places, 204 transitions, 512 flow. Second operand 3 states and 580 transitions. [2022-04-18 15:48:50,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 211 transitions, 577 flow [2022-04-18 15:48:50,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 211 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:50,757 INFO L242 Difference]: Finished difference. Result has 199 places, 206 transitions, 534 flow [2022-04-18 15:48:50,757 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=199, PETRI_TRANSITIONS=206} [2022-04-18 15:48:50,759 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-04-18 15:48:50,759 INFO L478 AbstractCegarLoop]: Abstraction has has 199 places, 206 transitions, 534 flow [2022-04-18 15:48:50,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,760 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:50,760 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] [2022-04-18 15:48:50,760 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:48:50,760 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:50,761 INFO L85 PathProgramCache]: Analyzing trace with hash -327149231, now seen corresponding path program 1 times [2022-04-18 15:48:50,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:50,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699484441] [2022-04-18 15:48:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:50,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:50,822 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 15:48:50,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:50,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699484441] [2022-04-18 15:48:50,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699484441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:50,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:50,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:50,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616464399] [2022-04-18 15:48:50,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:50,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:50,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:50,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:50,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:50,827 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 211 [2022-04-18 15:48:50,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 206 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:50,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 211 [2022-04-18 15:48:50,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:51,347 INFO L129 PetriNetUnfolder]: 580/5384 cut-off events. [2022-04-18 15:48:51,347 INFO L130 PetriNetUnfolder]: For 820/1330 co-relation queries the response was YES. [2022-04-18 15:48:51,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7608 conditions, 5384 events. 580/5384 cut-off events. For 820/1330 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 59533 event pairs, 190 based on Foata normal form. 22/4750 useless extension candidates. Maximal degree in co-relation 7550. Up to 559 conditions per place. [2022-04-18 15:48:51,429 INFO L132 encePairwiseOnDemand]: 206/211 looper letters, 25 selfloop transitions, 4 changer transitions 0/213 dead transitions. [2022-04-18 15:48:51,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 213 transitions, 619 flow [2022-04-18 15:48:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-04-18 15:48:51,431 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9020537124802528 [2022-04-18 15:48:51,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-04-18 15:48:51,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-04-18 15:48:51,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:51,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-04-18 15:48:51,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:51,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:51,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:51,439 INFO L186 Difference]: Start difference. First operand has 199 places, 206 transitions, 534 flow. Second operand 3 states and 571 transitions. [2022-04-18 15:48:51,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 213 transitions, 619 flow [2022-04-18 15:48:51,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 213 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:51,444 INFO L242 Difference]: Finished difference. Result has 201 places, 209 transitions, 554 flow [2022-04-18 15:48:51,444 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=201, PETRI_TRANSITIONS=209} [2022-04-18 15:48:51,445 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -1 predicate places. [2022-04-18 15:48:51,448 INFO L478 AbstractCegarLoop]: Abstraction has has 201 places, 209 transitions, 554 flow [2022-04-18 15:48:51,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:51,449 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:51,449 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] [2022-04-18 15:48:51,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:48:51,450 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:51,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 743325016, now seen corresponding path program 1 times [2022-04-18 15:48:51,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:51,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383775003] [2022-04-18 15:48:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:51,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:48:51,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:51,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383775003] [2022-04-18 15:48:51,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383775003] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:51,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:51,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:51,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518193258] [2022-04-18 15:48:51,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:51,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:51,506 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 211 [2022-04-18 15:48:51,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 209 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:51,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:51,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 211 [2022-04-18 15:48:51,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:52,113 INFO L129 PetriNetUnfolder]: 634/6861 cut-off events. [2022-04-18 15:48:52,113 INFO L130 PetriNetUnfolder]: For 1207/1580 co-relation queries the response was YES. [2022-04-18 15:48:52,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9816 conditions, 6861 events. 634/6861 cut-off events. For 1207/1580 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 80782 event pairs, 196 based on Foata normal form. 26/6113 useless extension candidates. Maximal degree in co-relation 9675. Up to 840 conditions per place. [2022-04-18 15:48:52,164 INFO L132 encePairwiseOnDemand]: 204/211 looper letters, 47 selfloop transitions, 8 changer transitions 0/226 dead transitions. [2022-04-18 15:48:52,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 226 transitions, 738 flow [2022-04-18 15:48:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-04-18 15:48:52,166 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2022-04-18 15:48:52,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-04-18 15:48:52,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-04-18 15:48:52,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:52,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-04-18 15:48:52,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:52,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:52,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:52,169 INFO L186 Difference]: Start difference. First operand has 201 places, 209 transitions, 554 flow. Second operand 3 states and 565 transitions. [2022-04-18 15:48:52,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 226 transitions, 738 flow [2022-04-18 15:48:52,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 226 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:52,175 INFO L242 Difference]: Finished difference. Result has 203 places, 216 transitions, 628 flow [2022-04-18 15:48:52,175 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=203, PETRI_TRANSITIONS=216} [2022-04-18 15:48:52,177 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, 1 predicate places. [2022-04-18 15:48:52,177 INFO L478 AbstractCegarLoop]: Abstraction has has 203 places, 216 transitions, 628 flow [2022-04-18 15:48:52,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:52,177 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:52,177 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:52,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:48:52,178 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:52,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:52,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1706873352, now seen corresponding path program 1 times [2022-04-18 15:48:52,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:52,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852991713] [2022-04-18 15:48:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:52,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:52,270 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 15:48:52,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:52,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852991713] [2022-04-18 15:48:52,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852991713] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:52,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:52,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 15:48:52,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100871252] [2022-04-18 15:48:52,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:52,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:48:52,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:52,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:48:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:48:52,273 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 211 [2022-04-18 15:48:52,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 216 transitions, 628 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:52,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:52,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 211 [2022-04-18 15:48:52,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:53,523 INFO L129 PetriNetUnfolder]: 2143/12745 cut-off events. [2022-04-18 15:48:53,524 INFO L130 PetriNetUnfolder]: For 1706/1848 co-relation queries the response was YES. [2022-04-18 15:48:53,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19712 conditions, 12745 events. 2143/12745 cut-off events. For 1706/1848 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 157726 event pairs, 614 based on Foata normal form. 112/11720 useless extension candidates. Maximal degree in co-relation 19569. Up to 1891 conditions per place. [2022-04-18 15:48:53,610 INFO L132 encePairwiseOnDemand]: 203/211 looper letters, 54 selfloop transitions, 8 changer transitions 0/239 dead transitions. [2022-04-18 15:48:53,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 239 transitions, 800 flow [2022-04-18 15:48:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 15:48:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 15:48:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2022-04-18 15:48:53,613 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.833175355450237 [2022-04-18 15:48:53,613 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2022-04-18 15:48:53,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2022-04-18 15:48:53,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:53,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2022-04-18 15:48:53,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:53,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:53,618 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:53,618 INFO L186 Difference]: Start difference. First operand has 203 places, 216 transitions, 628 flow. Second operand 5 states and 879 transitions. [2022-04-18 15:48:53,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 239 transitions, 800 flow [2022-04-18 15:48:53,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 239 transitions, 774 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:53,628 INFO L242 Difference]: Finished difference. Result has 206 places, 220 transitions, 640 flow [2022-04-18 15:48:53,629 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=640, PETRI_PLACES=206, PETRI_TRANSITIONS=220} [2022-04-18 15:48:53,629 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, 4 predicate places. [2022-04-18 15:48:53,630 INFO L478 AbstractCegarLoop]: Abstraction has has 206 places, 220 transitions, 640 flow [2022-04-18 15:48:53,630 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:53,630 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:53,630 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 15:48:53,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:48:53,631 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:53,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1429460792, now seen corresponding path program 1 times [2022-04-18 15:48:53,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:53,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463579381] [2022-04-18 15:48:53,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:53,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:53,657 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 15:48:53,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:53,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463579381] [2022-04-18 15:48:53,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463579381] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:53,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:53,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233759837] [2022-04-18 15:48:53,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:53,659 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:53,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:53,660 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 211 [2022-04-18 15:48:53,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 220 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:53,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:53,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 211 [2022-04-18 15:48:53,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:54,385 INFO L129 PetriNetUnfolder]: 594/8266 cut-off events. [2022-04-18 15:48:54,385 INFO L130 PetriNetUnfolder]: For 915/1169 co-relation queries the response was YES. [2022-04-18 15:48:54,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11792 conditions, 8266 events. 594/8266 cut-off events. For 915/1169 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 103433 event pairs, 173 based on Foata normal form. 8/7446 useless extension candidates. Maximal degree in co-relation 11729. Up to 747 conditions per place. [2022-04-18 15:48:54,430 INFO L132 encePairwiseOnDemand]: 206/211 looper letters, 27 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2022-04-18 15:48:54,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 227 transitions, 727 flow [2022-04-18 15:48:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-04-18 15:48:54,432 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9020537124802528 [2022-04-18 15:48:54,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-04-18 15:48:54,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-04-18 15:48:54,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:54,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-04-18 15:48:54,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:54,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:54,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:54,435 INFO L186 Difference]: Start difference. First operand has 206 places, 220 transitions, 640 flow. Second operand 3 states and 571 transitions. [2022-04-18 15:48:54,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 227 transitions, 727 flow [2022-04-18 15:48:54,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 227 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:54,440 INFO L242 Difference]: Finished difference. Result has 208 places, 223 transitions, 671 flow [2022-04-18 15:48:54,447 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=208, PETRI_TRANSITIONS=223} [2022-04-18 15:48:54,448 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, 6 predicate places. [2022-04-18 15:48:54,448 INFO L478 AbstractCegarLoop]: Abstraction has has 208 places, 223 transitions, 671 flow [2022-04-18 15:48:54,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:54,449 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:54,449 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] [2022-04-18 15:48:54,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 15:48:54,449 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:54,449 INFO L85 PathProgramCache]: Analyzing trace with hash 153293934, now seen corresponding path program 1 times [2022-04-18 15:48:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:54,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901937770] [2022-04-18 15:48:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:54,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:54,562 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 15:48:54,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:54,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901937770] [2022-04-18 15:48:54,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901937770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:54,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:54,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 15:48:54,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944885336] [2022-04-18 15:48:54,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:54,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:48:54,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:54,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:48:54,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:48:54,565 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 211 [2022-04-18 15:48:54,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 223 transitions, 671 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:54,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:54,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 211 [2022-04-18 15:48:54,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:55,388 INFO L129 PetriNetUnfolder]: 1196/8462 cut-off events. [2022-04-18 15:48:55,388 INFO L130 PetriNetUnfolder]: For 1574/1631 co-relation queries the response was YES. [2022-04-18 15:48:55,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14375 conditions, 8462 events. 1196/8462 cut-off events. For 1574/1631 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 94589 event pairs, 347 based on Foata normal form. 211/8178 useless extension candidates. Maximal degree in co-relation 11226. Up to 1519 conditions per place. [2022-04-18 15:48:55,427 INFO L132 encePairwiseOnDemand]: 191/211 looper letters, 43 selfloop transitions, 21 changer transitions 0/233 dead transitions. [2022-04-18 15:48:55,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 233 transitions, 814 flow [2022-04-18 15:48:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 15:48:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 15:48:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 880 transitions. [2022-04-18 15:48:55,429 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8341232227488151 [2022-04-18 15:48:55,429 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 880 transitions. [2022-04-18 15:48:55,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 880 transitions. [2022-04-18 15:48:55,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:55,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 880 transitions. [2022-04-18 15:48:55,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,433 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,433 INFO L186 Difference]: Start difference. First operand has 208 places, 223 transitions, 671 flow. Second operand 5 states and 880 transitions. [2022-04-18 15:48:55,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 233 transitions, 814 flow [2022-04-18 15:48:55,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 233 transitions, 792 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-04-18 15:48:55,440 INFO L242 Difference]: Finished difference. Result has 204 places, 223 transitions, 708 flow [2022-04-18 15:48:55,441 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=708, PETRI_PLACES=204, PETRI_TRANSITIONS=223} [2022-04-18 15:48:55,441 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, 2 predicate places. [2022-04-18 15:48:55,441 INFO L478 AbstractCegarLoop]: Abstraction has has 204 places, 223 transitions, 708 flow [2022-04-18 15:48:55,442 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,442 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:55,442 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] [2022-04-18 15:48:55,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 15:48:55,442 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:55,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash -431125164, now seen corresponding path program 1 times [2022-04-18 15:48:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:55,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432379730] [2022-04-18 15:48:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:55,578 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 15:48:55,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:55,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432379730] [2022-04-18 15:48:55,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432379730] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:55,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:55,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 15:48:55,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283725026] [2022-04-18 15:48:55,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:55,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 15:48:55,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 15:48:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-04-18 15:48:55,582 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 211 [2022-04-18 15:48:55,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 223 transitions, 708 flow. Second operand has 7 states, 7 states have (on average 161.28571428571428) internal successors, (1129), 7 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:55,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 211 [2022-04-18 15:48:55,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:55,834 INFO L129 PetriNetUnfolder]: 229/2503 cut-off events. [2022-04-18 15:48:55,834 INFO L130 PetriNetUnfolder]: For 862/919 co-relation queries the response was YES. [2022-04-18 15:48:55,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4580 conditions, 2503 events. 229/2503 cut-off events. For 862/919 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 19391 event pairs, 60 based on Foata normal form. 63/2466 useless extension candidates. Maximal degree in co-relation 4420. Up to 497 conditions per place. [2022-04-18 15:48:55,842 INFO L132 encePairwiseOnDemand]: 204/211 looper letters, 60 selfloop transitions, 8 changer transitions 0/205 dead transitions. [2022-04-18 15:48:55,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 205 transitions, 747 flow [2022-04-18 15:48:55,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:48:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:48:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 996 transitions. [2022-04-18 15:48:55,845 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7867298578199052 [2022-04-18 15:48:55,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 996 transitions. [2022-04-18 15:48:55,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 996 transitions. [2022-04-18 15:48:55,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:55,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 996 transitions. [2022-04-18 15:48:55,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,850 INFO L186 Difference]: Start difference. First operand has 204 places, 223 transitions, 708 flow. Second operand 6 states and 996 transitions. [2022-04-18 15:48:55,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 205 transitions, 747 flow [2022-04-18 15:48:55,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 205 transitions, 710 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-04-18 15:48:55,855 INFO L242 Difference]: Finished difference. Result has 198 places, 196 transitions, 550 flow [2022-04-18 15:48:55,855 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=550, PETRI_PLACES=198, PETRI_TRANSITIONS=196} [2022-04-18 15:48:55,856 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -4 predicate places. [2022-04-18 15:48:55,856 INFO L478 AbstractCegarLoop]: Abstraction has has 198 places, 196 transitions, 550 flow [2022-04-18 15:48:55,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 161.28571428571428) internal successors, (1129), 7 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,857 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:55,857 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:55,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 15:48:55,857 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:55,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1619670999, now seen corresponding path program 1 times [2022-04-18 15:48:55,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:55,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570207137] [2022-04-18 15:48:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:55,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:55,957 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 15:48:55,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:55,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570207137] [2022-04-18 15:48:55,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570207137] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:55,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:55,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:48:55,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519446526] [2022-04-18 15:48:55,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:55,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:48:55,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:48:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:48:55,963 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2022-04-18 15:48:55,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 196 transitions, 550 flow. Second operand has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:55,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:55,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2022-04-18 15:48:55,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:56,134 INFO L129 PetriNetUnfolder]: 108/2044 cut-off events. [2022-04-18 15:48:56,135 INFO L130 PetriNetUnfolder]: For 157/217 co-relation queries the response was YES. [2022-04-18 15:48:56,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3228 conditions, 2044 events. 108/2044 cut-off events. For 157/217 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15198 event pairs, 41 based on Foata normal form. 40/2008 useless extension candidates. Maximal degree in co-relation 3161. Up to 232 conditions per place. [2022-04-18 15:48:56,140 INFO L132 encePairwiseOnDemand]: 206/211 looper letters, 14 selfloop transitions, 4 changer transitions 3/195 dead transitions. [2022-04-18 15:48:56,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 195 transitions, 584 flow [2022-04-18 15:48:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:48:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:48:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1105 transitions. [2022-04-18 15:48:56,142 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.872827804107425 [2022-04-18 15:48:56,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1105 transitions. [2022-04-18 15:48:56,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1105 transitions. [2022-04-18 15:48:56,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:56,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1105 transitions. [2022-04-18 15:48:56,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,147 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,147 INFO L186 Difference]: Start difference. First operand has 198 places, 196 transitions, 550 flow. Second operand 6 states and 1105 transitions. [2022-04-18 15:48:56,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 195 transitions, 584 flow [2022-04-18 15:48:56,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 195 transitions, 566 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:48:56,151 INFO L242 Difference]: Finished difference. Result has 197 places, 192 transitions, 532 flow [2022-04-18 15:48:56,151 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=197, PETRI_TRANSITIONS=192} [2022-04-18 15:48:56,151 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-04-18 15:48:56,152 INFO L478 AbstractCegarLoop]: Abstraction has has 197 places, 192 transitions, 532 flow [2022-04-18 15:48:56,152 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,152 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:56,152 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:48:56,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 15:48:56,152 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-04-18 15:48:56,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1798394809, now seen corresponding path program 1 times [2022-04-18 15:48:56,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:56,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741615514] [2022-04-18 15:48:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:56,223 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 15:48:56,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:56,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741615514] [2022-04-18 15:48:56,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741615514] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:56,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:56,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:48:56,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518177833] [2022-04-18 15:48:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:56,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:48:56,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:48:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:48:56,226 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2022-04-18 15:48:56,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 192 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:56,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2022-04-18 15:48:56,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:56,365 INFO L129 PetriNetUnfolder]: 108/1994 cut-off events. [2022-04-18 15:48:56,365 INFO L130 PetriNetUnfolder]: For 123/173 co-relation queries the response was YES. [2022-04-18 15:48:56,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3154 conditions, 1994 events. 108/1994 cut-off events. For 123/173 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14677 event pairs, 41 based on Foata normal form. 0/1968 useless extension candidates. Maximal degree in co-relation 3090. Up to 232 conditions per place. [2022-04-18 15:48:56,370 INFO L132 encePairwiseOnDemand]: 206/211 looper letters, 0 selfloop transitions, 0 changer transitions 191/191 dead transitions. [2022-04-18 15:48:56,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 191 transitions, 564 flow [2022-04-18 15:48:56,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:48:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:48:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2022-04-18 15:48:56,372 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8720379146919431 [2022-04-18 15:48:56,372 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2022-04-18 15:48:56,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2022-04-18 15:48:56,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:56,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2022-04-18 15:48:56,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,376 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,376 INFO L186 Difference]: Start difference. First operand has 197 places, 192 transitions, 532 flow. Second operand 6 states and 1104 transitions. [2022-04-18 15:48:56,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 191 transitions, 564 flow [2022-04-18 15:48:56,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 191 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 15:48:56,379 INFO L242 Difference]: Finished difference. Result has 194 places, 0 transitions, 0 flow [2022-04-18 15:48:56,380 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=194, PETRI_TRANSITIONS=0} [2022-04-18 15:48:56,380 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -8 predicate places. [2022-04-18 15:48:56,380 INFO L478 AbstractCegarLoop]: Abstraction has has 194 places, 0 transitions, 0 flow [2022-04-18 15:48:56,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:56,382 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-04-18 15:48:56,383 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-04-18 15:48:56,383 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-04-18 15:48:56,384 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-04-18 15:48:56,385 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-04-18 15:48:56,386 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-04-18 15:48:56,386 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-04-18 15:48:56,386 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-04-18 15:48:56,386 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-04-18 15:48:56,386 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-04-18 15:48:56,386 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-04-18 15:48:56,386 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 15:48:56,389 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:56,392 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:48:56,392 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:48:56,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:48:56 BasicIcfg [2022-04-18 15:48:56,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:48:56,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:48:56,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:48:56,395 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:48:56,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:48:49" (3/4) ... [2022-04-18 15:48:56,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 15:48:56,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-04-18 15:48:56,401 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-04-18 15:48:56,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-04-18 15:48:56,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 15:48:56,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 15:48:56,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 15:48:56,430 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 15:48:56,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:48:56,431 INFO L158 Benchmark]: Toolchain (without parser) took 8241.45ms. Allocated memory was 96.5MB in the beginning and 926.9MB in the end (delta: 830.5MB). Free memory was 61.2MB in the beginning and 487.9MB in the end (delta: -426.7MB). Peak memory consumption was 402.8MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,431 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:48:56,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.00ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 120.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.92ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,432 INFO L158 Benchmark]: Boogie Preprocessor took 45.85ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,432 INFO L158 Benchmark]: RCFGBuilder took 413.31ms. Allocated memory is still 96.5MB. Free memory was 57.1MB in the beginning and 39.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,433 INFO L158 Benchmark]: TraceAbstraction took 7345.16ms. Allocated memory was 119.5MB in the beginning and 926.9MB in the end (delta: 807.4MB). Free memory was 95.0MB in the beginning and 491.1MB in the end (delta: -396.0MB). Peak memory consumption was 410.8MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,433 INFO L158 Benchmark]: Witness Printer took 36.12ms. Allocated memory is still 926.9MB. Free memory was 491.1MB in the beginning and 487.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:48:56,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.00ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 120.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.92ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.85ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.31ms. Allocated memory is still 96.5MB. Free memory was 57.1MB in the beginning and 39.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7345.16ms. Allocated memory was 119.5MB in the beginning and 926.9MB in the end (delta: 807.4MB). Free memory was 95.0MB in the beginning and 491.1MB in the end (delta: -396.0MB). Peak memory consumption was 410.8MB. Max. memory is 16.1GB. * Witness Printer took 36.12ms. Allocated memory is still 926.9MB. Free memory was 491.1MB in the beginning and 487.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: 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: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 280 locations, 24 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: 7.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 128 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=708occurred in iteration=8, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 837 ConstructedInterpolants, 0 QuantifiedInterpolants, 2122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 15:48:56,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE