./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-word-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/weaver/chl-word-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:36:49,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:36:49,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:36:49,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:36:49,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:36:49,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:36:49,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:36:49,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:36:49,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:36:49,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:36:49,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:36:49,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:36:49,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:36:49,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:36:49,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:36:49,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:36:49,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:36:49,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:36:49,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:36:49,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:36:49,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:36:49,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:36:49,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:36:49,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:36:49,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:36:49,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:36:49,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:36:49,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:36:49,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:36:49,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:36:49,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:36:49,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:36:49,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:36:49,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:36:49,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:36:49,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:36:49,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:36:49,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:36:49,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:36:49,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:36:49,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:36:49,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:36:49,896 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:36:49,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:36:49,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:36:49,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:36:49,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:36:49,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:36:49,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:36:49,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:36:49,906 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:36:49,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:36:49,907 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:36:49,907 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:36:49,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:36:49,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:36:49,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:36:49,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:36:49,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:36:49,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:36:49,909 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:36:49,909 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:36:49,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:36:49,910 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:36:49,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:36:49,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:36:49,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:36:49,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:36:49,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:36:49,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:36:49,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:36:49,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:36:49,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:36:49,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:36:49,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:36:49,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:36:49,913 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:36:49,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:36:49,913 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:36:49,913 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:36:50,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:36:50,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:36:50,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:36:50,271 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:36:50,272 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:36:50,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-word-trans.wvr.c [2023-08-31 21:36:51,497 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:36:51,720 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:36:51,720 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c [2023-08-31 21:36:51,726 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45677a02/7293cde09a8046a2b72a6146f83511db/FLAG3227eb4a3 [2023-08-31 21:36:51,737 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45677a02/7293cde09a8046a2b72a6146f83511db [2023-08-31 21:36:51,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:36:51,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:36:51,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:36:51,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:36:51,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:36:51,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:36:51" (1/1) ... [2023-08-31 21:36:51,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765ec3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:51, skipping insertion in model container [2023-08-31 21:36:51,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:36:51" (1/1) ... [2023-08-31 21:36:51,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:36:51,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:36:51,960 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c[3292,3305] [2023-08-31 21:36:51,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:36:51,981 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:36:52,049 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c[3292,3305] [2023-08-31 21:36:52,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:36:52,080 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:36:52,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52 WrapperNode [2023-08-31 21:36:52,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:36:52,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:36:52,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:36:52,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:36:52,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,163 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 273 [2023-08-31 21:36:52,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:36:52,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:36:52,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:36:52,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:36:52,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:36:52,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:36:52,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:36:52,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:36:52,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (1/1) ... [2023-08-31 21:36:52,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:36:52,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:36:52,266 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) [2023-08-31 21:36:52,292 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 [2023-08-31 21:36:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:36:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:36:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:36:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:36:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:36:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:36:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:36:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:36:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:36:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:36:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:36:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:36:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:36:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:36:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:36:52,315 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:36:52,478 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:36:52,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:36:53,254 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:36:53,268 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:36:53,268 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-31 21:36:53,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:53 BoogieIcfgContainer [2023-08-31 21:36:53,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:36:53,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:36:53,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:36:53,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:36:53,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:36:51" (1/3) ... [2023-08-31 21:36:53,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52248f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:36:53, skipping insertion in model container [2023-08-31 21:36:53,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:52" (2/3) ... [2023-08-31 21:36:53,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52248f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:36:53, skipping insertion in model container [2023-08-31 21:36:53,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:53" (3/3) ... [2023-08-31 21:36:53,278 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2023-08-31 21:36:53,284 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:36:53,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:36:53,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-08-31 21:36:53,292 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:36:53,448 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:36:53,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 624 places, 647 transitions, 1318 flow [2023-08-31 21:36:53,732 INFO L130 PetriNetUnfolder]: 33/644 cut-off events. [2023-08-31 21:36:53,732 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:36:53,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 644 events. 33/644 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1757 event pairs, 0 based on Foata normal form. 0/533 useless extension candidates. Maximal degree in co-relation 472. Up to 3 conditions per place. [2023-08-31 21:36:53,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 624 places, 647 transitions, 1318 flow [2023-08-31 21:36:53,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 602 places, 623 transitions, 1264 flow [2023-08-31 21:36:53,771 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:36:53,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 602 places, 623 transitions, 1264 flow [2023-08-31 21:36:53,797 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 602 places, 623 transitions, 1264 flow [2023-08-31 21:36:53,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 602 places, 623 transitions, 1264 flow [2023-08-31 21:36:53,938 INFO L130 PetriNetUnfolder]: 31/623 cut-off events. [2023-08-31 21:36:53,939 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:36:53,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 623 events. 31/623 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1738 event pairs, 0 based on Foata normal form. 0/515 useless extension candidates. Maximal degree in co-relation 472. Up to 3 conditions per place. [2023-08-31 21:36:53,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 89910 [2023-08-31 21:37:04,912 INFO L134 LiptonReduction]: Checked pairs total: 735594 [2023-08-31 21:37:04,912 INFO L136 LiptonReduction]: Total number of compositions: 493 [2023-08-31 21:37:04,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:37:04,931 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b61bf5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:37:04,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2023-08-31 21:37:04,933 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:37:04,933 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:37:04,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:04,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:37:04,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:04,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:04,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2023-08-31 21:37:04,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:04,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922274010] [2023-08-31 21:37:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:04,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:05,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:05,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922274010] [2023-08-31 21:37:05,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922274010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:05,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:05,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:37:05,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623057494] [2023-08-31 21:37:05,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:05,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:37:05,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:05,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:37:05,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:37:05,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1140 [2023-08-31 21:37:05,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 266 transitions, 550 flow. Second operand has 2 states, 2 states have (on average 627.5) internal successors, (1255), 2 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:05,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:05,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1140 [2023-08-31 21:37:05,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:10,686 INFO L130 PetriNetUnfolder]: 20226/59871 cut-off events. [2023-08-31 21:37:10,686 INFO L131 PetriNetUnfolder]: For 814/814 co-relation queries the response was YES. [2023-08-31 21:37:10,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86918 conditions, 59871 events. 20226/59871 cut-off events. For 814/814 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 779244 event pairs, 13803 based on Foata normal form. 4796/51456 useless extension candidates. Maximal degree in co-relation 81481. Up to 26452 conditions per place. [2023-08-31 21:37:11,234 INFO L137 encePairwiseOnDemand]: 1110/1140 looper letters, 71 selfloop transitions, 0 changer transitions 1/236 dead transitions. [2023-08-31 21:37:11,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 236 transitions, 634 flow [2023-08-31 21:37:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:37:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:37:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1356 transitions. [2023-08-31 21:37:11,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5947368421052631 [2023-08-31 21:37:11,258 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1356 transitions. [2023-08-31 21:37:11,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1356 transitions. [2023-08-31 21:37:11,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:11,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1356 transitions. [2023-08-31 21:37:11,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 678.0) internal successors, (1356), 2 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:11,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1140.0) internal successors, (3420), 3 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:11,288 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1140.0) internal successors, (3420), 3 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:11,289 INFO L175 Difference]: Start difference. First operand has 255 places, 266 transitions, 550 flow. Second operand 2 states and 1356 transitions. [2023-08-31 21:37:11,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 236 transitions, 634 flow [2023-08-31 21:37:11,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 236 transitions, 622 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:37:11,311 INFO L231 Difference]: Finished difference. Result has 223 places, 235 transitions, 475 flow [2023-08-31 21:37:11,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=475, PETRI_PLACES=223, PETRI_TRANSITIONS=235} [2023-08-31 21:37:11,317 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -32 predicate places. [2023-08-31 21:37:11,317 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 235 transitions, 475 flow [2023-08-31 21:37:11,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 627.5) internal successors, (1255), 2 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:11,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:11,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:11,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:37:11,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:11,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:11,323 INFO L85 PathProgramCache]: Analyzing trace with hash 710166074, now seen corresponding path program 1 times [2023-08-31 21:37:11,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:11,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715078052] [2023-08-31 21:37:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:11,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:11,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715078052] [2023-08-31 21:37:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715078052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:11,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:11,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:11,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861470438] [2023-08-31 21:37:11,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:11,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:11,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:11,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:11,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-31 21:37:11,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 235 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:11,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:11,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-31 21:37:11,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:16,127 INFO L130 PetriNetUnfolder]: 25416/72228 cut-off events. [2023-08-31 21:37:16,127 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-08-31 21:37:16,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105806 conditions, 72228 events. 25416/72228 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 1675. Compared 938239 event pairs, 12814 based on Foata normal form. 0/57480 useless extension candidates. Maximal degree in co-relation 105803. Up to 33247 conditions per place. [2023-08-31 21:37:16,633 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 97 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2023-08-31 21:37:16,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 255 transitions, 715 flow [2023-08-31 21:37:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:16,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:16,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1945 transitions. [2023-08-31 21:37:16,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5687134502923976 [2023-08-31 21:37:16,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1945 transitions. [2023-08-31 21:37:16,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1945 transitions. [2023-08-31 21:37:16,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:16,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1945 transitions. [2023-08-31 21:37:16,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,653 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,653 INFO L175 Difference]: Start difference. First operand has 223 places, 235 transitions, 475 flow. Second operand 3 states and 1945 transitions. [2023-08-31 21:37:16,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 255 transitions, 715 flow [2023-08-31 21:37:16,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 255 transitions, 715 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:16,658 INFO L231 Difference]: Finished difference. Result has 221 places, 233 transitions, 481 flow [2023-08-31 21:37:16,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=221, PETRI_TRANSITIONS=233} [2023-08-31 21:37:16,659 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -34 predicate places. [2023-08-31 21:37:16,659 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 233 transitions, 481 flow [2023-08-31 21:37:16,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:16,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:16,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:37:16,661 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:16,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:16,664 INFO L85 PathProgramCache]: Analyzing trace with hash -425558663, now seen corresponding path program 1 times [2023-08-31 21:37:16,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:16,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601270089] [2023-08-31 21:37:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:16,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:16,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601270089] [2023-08-31 21:37:16,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601270089] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:16,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:16,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:16,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358878975] [2023-08-31 21:37:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:16,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:16,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:16,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:16,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:16,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-31 21:37:16,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 233 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:16,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-31 21:37:16,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:21,743 INFO L130 PetriNetUnfolder]: 29268/80878 cut-off events. [2023-08-31 21:37:21,744 INFO L131 PetriNetUnfolder]: For 1303/1303 co-relation queries the response was YES. [2023-08-31 21:37:22,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120897 conditions, 80878 events. 29268/80878 cut-off events. For 1303/1303 co-relation queries the response was YES. Maximal size of possible extension queue 1842. Compared 1054559 event pairs, 14649 based on Foata normal form. 0/64662 useless extension candidates. Maximal degree in co-relation 120893. Up to 38388 conditions per place. [2023-08-31 21:37:22,454 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 107 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2023-08-31 21:37:22,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 259 transitions, 763 flow [2023-08-31 21:37:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:22,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1951 transitions. [2023-08-31 21:37:22,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5704678362573099 [2023-08-31 21:37:22,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1951 transitions. [2023-08-31 21:37:22,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1951 transitions. [2023-08-31 21:37:22,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:22,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1951 transitions. [2023-08-31 21:37:22,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,473 INFO L175 Difference]: Start difference. First operand has 221 places, 233 transitions, 481 flow. Second operand 3 states and 1951 transitions. [2023-08-31 21:37:22,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 259 transitions, 763 flow [2023-08-31 21:37:22,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 259 transitions, 763 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:22,479 INFO L231 Difference]: Finished difference. Result has 220 places, 231 transitions, 487 flow [2023-08-31 21:37:22,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=220, PETRI_TRANSITIONS=231} [2023-08-31 21:37:22,481 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -35 predicate places. [2023-08-31 21:37:22,484 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 231 transitions, 487 flow [2023-08-31 21:37:22,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:22,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:22,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:37:22,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:22,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:22,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1062616450, now seen corresponding path program 1 times [2023-08-31 21:37:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:22,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165271737] [2023-08-31 21:37:22,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:22,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:22,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:22,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165271737] [2023-08-31 21:37:22,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165271737] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:22,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:22,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:22,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824298951] [2023-08-31 21:37:22,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:22,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:22,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:22,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:22,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-31 21:37:22,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 231 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:22,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-31 21:37:22,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:27,237 INFO L130 PetriNetUnfolder]: 26375/72156 cut-off events. [2023-08-31 21:37:27,238 INFO L131 PetriNetUnfolder]: For 1781/1783 co-relation queries the response was YES. [2023-08-31 21:37:27,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108903 conditions, 72156 events. 26375/72156 cut-off events. For 1781/1783 co-relation queries the response was YES. Maximal size of possible extension queue 1731. Compared 922061 event pairs, 18019 based on Foata normal form. 0/57393 useless extension candidates. Maximal degree in co-relation 108898. Up to 34778 conditions per place. [2023-08-31 21:37:27,781 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 77 selfloop transitions, 1 changer transitions 0/227 dead transitions. [2023-08-31 21:37:27,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 227 transitions, 635 flow [2023-08-31 21:37:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1912 transitions. [2023-08-31 21:37:27,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5590643274853802 [2023-08-31 21:37:27,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1912 transitions. [2023-08-31 21:37:27,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1912 transitions. [2023-08-31 21:37:27,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:27,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1912 transitions. [2023-08-31 21:37:27,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:27,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:27,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:27,807 INFO L175 Difference]: Start difference. First operand has 220 places, 231 transitions, 487 flow. Second operand 3 states and 1912 transitions. [2023-08-31 21:37:27,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 227 transitions, 635 flow [2023-08-31 21:37:27,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 227 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:27,812 INFO L231 Difference]: Finished difference. Result has 218 places, 227 transitions, 481 flow [2023-08-31 21:37:27,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=218, PETRI_TRANSITIONS=227} [2023-08-31 21:37:27,815 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -37 predicate places. [2023-08-31 21:37:27,815 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 227 transitions, 481 flow [2023-08-31 21:37:27,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:27,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:27,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:27,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:37:27,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:27,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash -939931685, now seen corresponding path program 1 times [2023-08-31 21:37:27,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:27,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014781278] [2023-08-31 21:37:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:27,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:27,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014781278] [2023-08-31 21:37:27,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014781278] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:27,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:27,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:27,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890215562] [2023-08-31 21:37:27,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:27,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:27,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:27,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:27,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:27,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-31 21:37:27,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 227 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:27,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:27,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-31 21:37:27,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:32,247 INFO L130 PetriNetUnfolder]: 27980/67440 cut-off events. [2023-08-31 21:37:32,248 INFO L131 PetriNetUnfolder]: For 1918/1920 co-relation queries the response was YES. [2023-08-31 21:37:32,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106472 conditions, 67440 events. 27980/67440 cut-off events. For 1918/1920 co-relation queries the response was YES. Maximal size of possible extension queue 1530. Compared 789838 event pairs, 6411 based on Foata normal form. 0/53412 useless extension candidates. Maximal degree in co-relation 106466. Up to 36443 conditions per place. [2023-08-31 21:37:32,815 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 106 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2023-08-31 21:37:32,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 252 transitions, 764 flow [2023-08-31 21:37:32,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1948 transitions. [2023-08-31 21:37:32,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695906432748538 [2023-08-31 21:37:32,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1948 transitions. [2023-08-31 21:37:32,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1948 transitions. [2023-08-31 21:37:32,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:32,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1948 transitions. [2023-08-31 21:37:32,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:32,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:32,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:32,832 INFO L175 Difference]: Start difference. First operand has 218 places, 227 transitions, 481 flow. Second operand 3 states and 1948 transitions. [2023-08-31 21:37:32,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 252 transitions, 764 flow [2023-08-31 21:37:32,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 252 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:32,837 INFO L231 Difference]: Finished difference. Result has 216 places, 225 transitions, 486 flow [2023-08-31 21:37:32,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=216, PETRI_TRANSITIONS=225} [2023-08-31 21:37:32,838 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -39 predicate places. [2023-08-31 21:37:32,838 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 225 transitions, 486 flow [2023-08-31 21:37:32,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:32,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:32,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:32,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:37:32,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:32,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:32,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1028477649, now seen corresponding path program 1 times [2023-08-31 21:37:32,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:32,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373483918] [2023-08-31 21:37:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:32,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:32,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:32,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373483918] [2023-08-31 21:37:32,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373483918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:32,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:32,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:32,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306098627] [2023-08-31 21:37:32,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:32,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:32,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:32,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:32,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:32,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 1140 [2023-08-31 21:37:32,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 225 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 622.0) internal successors, (1866), 3 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:32,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:32,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 1140 [2023-08-31 21:37:32,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:37,395 INFO L130 PetriNetUnfolder]: 23346/66167 cut-off events. [2023-08-31 21:37:37,396 INFO L131 PetriNetUnfolder]: For 1601/1603 co-relation queries the response was YES. [2023-08-31 21:37:37,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99010 conditions, 66167 events. 23346/66167 cut-off events. For 1601/1603 co-relation queries the response was YES. Maximal size of possible extension queue 1514. Compared 845427 event pairs, 14521 based on Foata normal form. 0/52521 useless extension candidates. Maximal degree in co-relation 99004. Up to 28995 conditions per place. [2023-08-31 21:37:37,785 INFO L137 encePairwiseOnDemand]: 1137/1140 looper letters, 115 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2023-08-31 21:37:37,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 268 transitions, 812 flow [2023-08-31 21:37:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:37,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:37,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2023-08-31 21:37:37,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766081871345029 [2023-08-31 21:37:37,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1972 transitions. [2023-08-31 21:37:37,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1972 transitions. [2023-08-31 21:37:37,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:37,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1972 transitions. [2023-08-31 21:37:37,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:37,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:37,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:37,800 INFO L175 Difference]: Start difference. First operand has 216 places, 225 transitions, 486 flow. Second operand 3 states and 1972 transitions. [2023-08-31 21:37:37,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 268 transitions, 812 flow [2023-08-31 21:37:37,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 268 transitions, 812 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:37,806 INFO L231 Difference]: Finished difference. Result has 219 places, 226 transitions, 498 flow [2023-08-31 21:37:37,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=219, PETRI_TRANSITIONS=226} [2023-08-31 21:37:37,807 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -36 predicate places. [2023-08-31 21:37:37,807 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 226 transitions, 498 flow [2023-08-31 21:37:37,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.0) internal successors, (1866), 3 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:37,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:37,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:37,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:37:37,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:37,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:37,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1028297528, now seen corresponding path program 1 times [2023-08-31 21:37:37,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:37,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79993547] [2023-08-31 21:37:37,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:37,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:37,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:37,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79993547] [2023-08-31 21:37:37,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79993547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:37,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:37,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:37,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998691890] [2023-08-31 21:37:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:37,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:37,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:37,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-31 21:37:37,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 226 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:37,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:37,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-31 21:37:37,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:42,914 INFO L130 PetriNetUnfolder]: 28024/78099 cut-off events. [2023-08-31 21:37:42,914 INFO L131 PetriNetUnfolder]: For 4456/4458 co-relation queries the response was YES. [2023-08-31 21:37:43,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120166 conditions, 78099 events. 28024/78099 cut-off events. For 4456/4458 co-relation queries the response was YES. Maximal size of possible extension queue 1800. Compared 1015637 event pairs, 19225 based on Foata normal form. 0/63504 useless extension candidates. Maximal degree in co-relation 120158. Up to 37152 conditions per place. [2023-08-31 21:37:43,613 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 77 selfloop transitions, 1 changer transitions 0/222 dead transitions. [2023-08-31 21:37:43,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 222 transitions, 646 flow [2023-08-31 21:37:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2023-08-31 21:37:43,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587719298245614 [2023-08-31 21:37:43,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2023-08-31 21:37:43,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2023-08-31 21:37:43,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:43,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2023-08-31 21:37:43,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:43,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:43,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:43,627 INFO L175 Difference]: Start difference. First operand has 219 places, 226 transitions, 498 flow. Second operand 3 states and 1911 transitions. [2023-08-31 21:37:43,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 222 transitions, 646 flow [2023-08-31 21:37:43,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 222 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:43,636 INFO L231 Difference]: Finished difference. Result has 216 places, 222 transitions, 490 flow [2023-08-31 21:37:43,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=216, PETRI_TRANSITIONS=222} [2023-08-31 21:37:43,637 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -39 predicate places. [2023-08-31 21:37:43,637 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 222 transitions, 490 flow [2023-08-31 21:37:43,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:43,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:43,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:43,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:37:43,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:43,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1291265988, now seen corresponding path program 1 times [2023-08-31 21:37:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451398436] [2023-08-31 21:37:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:43,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:44,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:44,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451398436] [2023-08-31 21:37:44,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451398436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:44,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:44,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:44,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329602485] [2023-08-31 21:37:44,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:44,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:44,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:44,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:44,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:44,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 606 out of 1140 [2023-08-31 21:37:44,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 222 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 608.3333333333334) internal successors, (3650), 6 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:44,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:44,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 606 of 1140 [2023-08-31 21:37:44,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:52,698 INFO L130 PetriNetUnfolder]: 72301/116492 cut-off events. [2023-08-31 21:37:52,698 INFO L131 PetriNetUnfolder]: For 8027/8029 co-relation queries the response was YES. [2023-08-31 21:37:53,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219766 conditions, 116492 events. 72301/116492 cut-off events. For 8027/8029 co-relation queries the response was YES. Maximal size of possible extension queue 2832. Compared 1041562 event pairs, 6088 based on Foata normal form. 0/91987 useless extension candidates. Maximal degree in co-relation 219758. Up to 32728 conditions per place. [2023-08-31 21:37:53,566 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 307 selfloop transitions, 4 changer transitions 0/453 dead transitions. [2023-08-31 21:37:53,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 453 transitions, 1666 flow [2023-08-31 21:37:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3928 transitions. [2023-08-31 21:37:53,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5742690058479533 [2023-08-31 21:37:53,572 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3928 transitions. [2023-08-31 21:37:53,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3928 transitions. [2023-08-31 21:37:53,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:53,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3928 transitions. [2023-08-31 21:37:53,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 654.6666666666666) internal successors, (3928), 6 states have internal predecessors, (3928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:53,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:53,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:53,587 INFO L175 Difference]: Start difference. First operand has 216 places, 222 transitions, 490 flow. Second operand 6 states and 3928 transitions. [2023-08-31 21:37:53,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 453 transitions, 1666 flow [2023-08-31 21:37:53,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 453 transitions, 1665 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:53,605 INFO L231 Difference]: Finished difference. Result has 219 places, 221 transitions, 495 flow [2023-08-31 21:37:53,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=495, PETRI_PLACES=219, PETRI_TRANSITIONS=221} [2023-08-31 21:37:53,606 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -36 predicate places. [2023-08-31 21:37:53,606 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 221 transitions, 495 flow [2023-08-31 21:37:53,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 608.3333333333334) internal successors, (3650), 6 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:53,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:53,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:53,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:37:53,608 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:37:53,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash 351962219, now seen corresponding path program 1 times [2023-08-31 21:37:53,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:53,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984507734] [2023-08-31 21:37:53,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:53,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:53,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:53,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984507734] [2023-08-31 21:37:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984507734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:53,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:53,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770160652] [2023-08-31 21:37:53,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:53,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:53,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:53,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:53,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:53,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-31 21:37:53,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 221 transitions, 495 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:53,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:53,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-31 21:37:53,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:59,557 INFO L130 PetriNetUnfolder]: 37419/87720 cut-off events. [2023-08-31 21:37:59,558 INFO L131 PetriNetUnfolder]: For 9796/9798 co-relation queries the response was YES. [2023-08-31 21:37:59,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148765 conditions, 87720 events. 37419/87720 cut-off events. For 9796/9798 co-relation queries the response was YES. Maximal size of possible extension queue 2345. Compared 1050254 event pairs, 7938 based on Foata normal form. 0/71772 useless extension candidates. Maximal degree in co-relation 148757. Up to 35470 conditions per place. [2023-08-31 21:38:00,168 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 129 selfloop transitions, 2 changer transitions 0/270 dead transitions. [2023-08-31 21:38:00,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 270 transitions, 878 flow [2023-08-31 21:38:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2023-08-31 21:38:00,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5763157894736842 [2023-08-31 21:38:00,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2023-08-31 21:38:00,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2023-08-31 21:38:00,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:00,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2023-08-31 21:38:00,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:00,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:00,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:00,178 INFO L175 Difference]: Start difference. First operand has 219 places, 221 transitions, 495 flow. Second operand 3 states and 1971 transitions. [2023-08-31 21:38:00,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 270 transitions, 878 flow [2023-08-31 21:38:00,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 270 transitions, 869 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:38:00,244 INFO L231 Difference]: Finished difference. Result has 214 places, 219 transitions, 496 flow [2023-08-31 21:38:00,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=214, PETRI_TRANSITIONS=219} [2023-08-31 21:38:00,245 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -41 predicate places. [2023-08-31 21:38:00,245 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 219 transitions, 496 flow [2023-08-31 21:38:00,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:00,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:00,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:38:00,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:38:00,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:38:00,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:00,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1140193568, now seen corresponding path program 1 times [2023-08-31 21:38:00,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:00,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617680823] [2023-08-31 21:38:00,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:00,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:38:00,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617680823] [2023-08-31 21:38:00,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617680823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:00,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:00,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:38:00,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325142289] [2023-08-31 21:38:00,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:00,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:38:00,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:38:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:38:00,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 1140 [2023-08-31 21:38:00,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 219 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:00,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:00,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 1140 [2023-08-31 21:38:00,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:06,532 INFO L130 PetriNetUnfolder]: 35420/91553 cut-off events. [2023-08-31 21:38:06,532 INFO L131 PetriNetUnfolder]: For 7109/7111 co-relation queries the response was YES. [2023-08-31 21:38:07,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146879 conditions, 91553 events. 35420/91553 cut-off events. For 7109/7111 co-relation queries the response was YES. Maximal size of possible extension queue 2208. Compared 1149722 event pairs, 21841 based on Foata normal form. 0/76438 useless extension candidates. Maximal degree in co-relation 146871. Up to 43849 conditions per place. [2023-08-31 21:38:07,417 INFO L137 encePairwiseOnDemand]: 1137/1140 looper letters, 123 selfloop transitions, 2 changer transitions 0/267 dead transitions. [2023-08-31 21:38:07,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 267 transitions, 874 flow [2023-08-31 21:38:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2023-08-31 21:38:07,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766081871345029 [2023-08-31 21:38:07,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1972 transitions. [2023-08-31 21:38:07,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1972 transitions. [2023-08-31 21:38:07,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:07,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1972 transitions. [2023-08-31 21:38:07,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:07,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:07,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:07,427 INFO L175 Difference]: Start difference. First operand has 214 places, 219 transitions, 496 flow. Second operand 3 states and 1972 transitions. [2023-08-31 21:38:07,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 267 transitions, 874 flow [2023-08-31 21:38:07,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 267 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:38:07,440 INFO L231 Difference]: Finished difference. Result has 217 places, 220 transitions, 508 flow [2023-08-31 21:38:07,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=217, PETRI_TRANSITIONS=220} [2023-08-31 21:38:07,441 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -38 predicate places. [2023-08-31 21:38:07,441 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 220 transitions, 508 flow [2023-08-31 21:38:07,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:07,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:07,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:38:07,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:38:07,442 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:38:07,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1139934149, now seen corresponding path program 1 times [2023-08-31 21:38:07,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:07,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170689296] [2023-08-31 21:38:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:07,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:38:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170689296] [2023-08-31 21:38:07,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170689296] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:07,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:07,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:38:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059156998] [2023-08-31 21:38:07,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:07,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:38:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:38:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:38:07,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-31 21:38:07,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 220 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:07,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:07,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-31 21:38:07,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:14,770 INFO L130 PetriNetUnfolder]: 42880/104820 cut-off events. [2023-08-31 21:38:14,770 INFO L131 PetriNetUnfolder]: For 12745/12747 co-relation queries the response was YES. [2023-08-31 21:38:15,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176115 conditions, 104820 events. 42880/104820 cut-off events. For 12745/12747 co-relation queries the response was YES. Maximal size of possible extension queue 2501. Compared 1299331 event pairs, 29153 based on Foata normal form. 0/88710 useless extension candidates. Maximal degree in co-relation 176105. Up to 56908 conditions per place. [2023-08-31 21:38:15,494 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 80 selfloop transitions, 1 changer transitions 0/216 dead transitions. [2023-08-31 21:38:15,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 216 transitions, 662 flow [2023-08-31 21:38:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2023-08-31 21:38:15,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587719298245614 [2023-08-31 21:38:15,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2023-08-31 21:38:15,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2023-08-31 21:38:15,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:15,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2023-08-31 21:38:15,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:15,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:15,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:15,505 INFO L175 Difference]: Start difference. First operand has 217 places, 220 transitions, 508 flow. Second operand 3 states and 1911 transitions. [2023-08-31 21:38:15,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 216 transitions, 662 flow [2023-08-31 21:38:15,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 216 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:38:15,535 INFO L231 Difference]: Finished difference. Result has 214 places, 216 transitions, 500 flow [2023-08-31 21:38:15,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=214, PETRI_TRANSITIONS=216} [2023-08-31 21:38:15,536 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -41 predicate places. [2023-08-31 21:38:15,536 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 216 transitions, 500 flow [2023-08-31 21:38:15,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:15,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:15,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:38:15,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:38:15,537 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:38:15,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:15,538 INFO L85 PathProgramCache]: Analyzing trace with hash 260434172, now seen corresponding path program 1 times [2023-08-31 21:38:15,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:15,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734871078] [2023-08-31 21:38:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:15,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:38:15,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:15,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734871078] [2023-08-31 21:38:15,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734871078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:15,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:38:15,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377816909] [2023-08-31 21:38:15,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:15,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:38:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:15,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:38:15,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:38:15,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-31 21:38:15,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 216 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:15,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:15,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-31 21:38:15,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:25,563 INFO L130 PetriNetUnfolder]: 65252/142322 cut-off events. [2023-08-31 21:38:25,563 INFO L131 PetriNetUnfolder]: For 14935/14937 co-relation queries the response was YES. [2023-08-31 21:38:26,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249339 conditions, 142322 events. 65252/142322 cut-off events. For 14935/14937 co-relation queries the response was YES. Maximal size of possible extension queue 3483. Compared 1700064 event pairs, 16183 based on Foata normal form. 0/123575 useless extension candidates. Maximal degree in co-relation 249329. Up to 57398 conditions per place. [2023-08-31 21:38:26,822 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 144 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2023-08-31 21:38:26,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 274 transitions, 952 flow [2023-08-31 21:38:26,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:26,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1979 transitions. [2023-08-31 21:38:26,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5786549707602339 [2023-08-31 21:38:26,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1979 transitions. [2023-08-31 21:38:26,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1979 transitions. [2023-08-31 21:38:26,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:26,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1979 transitions. [2023-08-31 21:38:26,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.6666666666666) internal successors, (1979), 3 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:26,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:26,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:26,831 INFO L175 Difference]: Start difference. First operand has 214 places, 216 transitions, 500 flow. Second operand 3 states and 1979 transitions. [2023-08-31 21:38:26,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 274 transitions, 952 flow [2023-08-31 21:38:26,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 274 transitions, 951 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:38:26,857 INFO L231 Difference]: Finished difference. Result has 212 places, 214 transitions, 507 flow [2023-08-31 21:38:26,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=507, PETRI_PLACES=212, PETRI_TRANSITIONS=214} [2023-08-31 21:38:26,858 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -43 predicate places. [2023-08-31 21:38:26,858 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 214 transitions, 507 flow [2023-08-31 21:38:26,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:26,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:26,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:38:26,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:38:26,859 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:38:26,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash 751565457, now seen corresponding path program 1 times [2023-08-31 21:38:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321027564] [2023-08-31 21:38:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:26,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:38:26,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:26,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321027564] [2023-08-31 21:38:26,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321027564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:26,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:26,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:38:26,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996975578] [2023-08-31 21:38:26,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:26,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:38:26,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:26,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:38:26,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:38:27,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-31 21:38:27,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 214 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 604.8333333333334) internal successors, (3629), 6 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:27,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:27,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-31 21:38:27,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:50,285 INFO L130 PetriNetUnfolder]: 132104/281632 cut-off events. [2023-08-31 21:38:50,285 INFO L131 PetriNetUnfolder]: For 40402/40550 co-relation queries the response was YES. [2023-08-31 21:38:51,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506517 conditions, 281632 events. 132104/281632 cut-off events. For 40402/40550 co-relation queries the response was YES. Maximal size of possible extension queue 7289. Compared 3641625 event pairs, 59222 based on Foata normal form. 2124/245250 useless extension candidates. Maximal degree in co-relation 506507. Up to 72574 conditions per place. [2023-08-31 21:38:53,130 INFO L137 encePairwiseOnDemand]: 1129/1140 looper letters, 389 selfloop transitions, 14 changer transitions 0/538 dead transitions. [2023-08-31 21:38:53,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 538 transitions, 2160 flow [2023-08-31 21:38:53,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 21:38:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 21:38:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 5800 transitions. [2023-08-31 21:38:53,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5653021442495126 [2023-08-31 21:38:53,141 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 5800 transitions. [2023-08-31 21:38:53,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 5800 transitions. [2023-08-31 21:38:53,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:53,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 5800 transitions. [2023-08-31 21:38:53,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 644.4444444444445) internal successors, (5800), 9 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:53,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1140.0) internal successors, (11400), 10 states have internal predecessors, (11400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:53,166 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1140.0) internal successors, (11400), 10 states have internal predecessors, (11400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:53,166 INFO L175 Difference]: Start difference. First operand has 212 places, 214 transitions, 507 flow. Second operand 9 states and 5800 transitions. [2023-08-31 21:38:53,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 538 transitions, 2160 flow [2023-08-31 21:38:54,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 538 transitions, 2160 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:38:54,782 INFO L231 Difference]: Finished difference. Result has 225 places, 227 transitions, 611 flow [2023-08-31 21:38:54,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=611, PETRI_PLACES=225, PETRI_TRANSITIONS=227} [2023-08-31 21:38:54,783 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -30 predicate places. [2023-08-31 21:38:54,783 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 227 transitions, 611 flow [2023-08-31 21:38:54,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 604.8333333333334) internal successors, (3629), 6 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:54,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:54,784 INFO L208 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] [2023-08-31 21:38:54,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:38:54,785 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:38:54,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:54,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1640151071, now seen corresponding path program 1 times [2023-08-31 21:38:54,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:54,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391216382] [2023-08-31 21:38:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:54,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:54,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:38:54,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:54,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391216382] [2023-08-31 21:38:54,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391216382] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:54,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:54,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:38:54,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100305508] [2023-08-31 21:38:54,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:54,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:38:54,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:54,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:38:54,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:38:55,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-31 21:38:55,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 227 transitions, 611 flow. Second operand has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:55,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:55,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-31 21:38:55,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:39:41,276 INFO L130 PetriNetUnfolder]: 254970/539066 cut-off events. [2023-08-31 21:39:41,277 INFO L131 PetriNetUnfolder]: For 126251/126469 co-relation queries the response was YES. [2023-08-31 21:39:44,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011906 conditions, 539066 events. 254970/539066 cut-off events. For 126251/126469 co-relation queries the response was YES. Maximal size of possible extension queue 13227. Compared 7434619 event pairs, 118894 based on Foata normal form. 1054/466300 useless extension candidates. Maximal degree in co-relation 1011890. Up to 163583 conditions per place. [2023-08-31 21:39:46,423 INFO L137 encePairwiseOnDemand]: 1132/1140 looper letters, 288 selfloop transitions, 22 changer transitions 0/445 dead transitions. [2023-08-31 21:39:46,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 445 transitions, 1848 flow [2023-08-31 21:39:46,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:39:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:39:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4487 transitions. [2023-08-31 21:39:46,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5622807017543859 [2023-08-31 21:39:46,429 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4487 transitions. [2023-08-31 21:39:46,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4487 transitions. [2023-08-31 21:39:46,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:39:46,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4487 transitions. [2023-08-31 21:39:46,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 641.0) internal successors, (4487), 7 states have internal predecessors, (4487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:46,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:46,439 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:46,439 INFO L175 Difference]: Start difference. First operand has 225 places, 227 transitions, 611 flow. Second operand 7 states and 4487 transitions. [2023-08-31 21:39:46,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 445 transitions, 1848 flow [2023-08-31 21:39:59,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 445 transitions, 1846 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-31 21:39:59,056 INFO L231 Difference]: Finished difference. Result has 235 places, 240 transitions, 768 flow [2023-08-31 21:39:59,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=768, PETRI_PLACES=235, PETRI_TRANSITIONS=240} [2023-08-31 21:39:59,056 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -20 predicate places. [2023-08-31 21:39:59,057 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 240 transitions, 768 flow [2023-08-31 21:39:59,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:59,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:39:59,058 INFO L208 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] [2023-08-31 21:39:59,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:39:59,058 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:39:59,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:39:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1403629322, now seen corresponding path program 1 times [2023-08-31 21:39:59,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:39:59,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272239896] [2023-08-31 21:39:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:39:59,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:39:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:39:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:39:59,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:39:59,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272239896] [2023-08-31 21:39:59,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272239896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:39:59,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:39:59,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:39:59,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817408153] [2023-08-31 21:39:59,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:39:59,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:39:59,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:39:59,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:39:59,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:39:59,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 1140 [2023-08-31 21:39:59,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 240 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 623.6666666666666) internal successors, (1871), 3 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:59,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:39:59,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 1140 [2023-08-31 21:39:59,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:40:57,982 INFO L130 PetriNetUnfolder]: 274927/617002 cut-off events. [2023-08-31 21:40:57,983 INFO L131 PetriNetUnfolder]: For 272016/272788 co-relation queries the response was YES. [2023-08-31 21:41:02,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167256 conditions, 617002 events. 274927/617002 cut-off events. For 272016/272788 co-relation queries the response was YES. Maximal size of possible extension queue 14793. Compared 8985756 event pairs, 182280 based on Foata normal form. 7632/543069 useless extension candidates. Maximal degree in co-relation 1167235. Up to 343156 conditions per place. [2023-08-31 21:41:04,634 INFO L137 encePairwiseOnDemand]: 1137/1140 looper letters, 167 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2023-08-31 21:41:04,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 304 transitions, 1425 flow [2023-08-31 21:41:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:41:04,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:41:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1969 transitions. [2023-08-31 21:41:04,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5757309941520468 [2023-08-31 21:41:04,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1969 transitions. [2023-08-31 21:41:04,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1969 transitions. [2023-08-31 21:41:04,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:41:04,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1969 transitions. [2023-08-31 21:41:04,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 656.3333333333334) internal successors, (1969), 3 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:41:04,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:41:04,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:41:04,642 INFO L175 Difference]: Start difference. First operand has 235 places, 240 transitions, 768 flow. Second operand 3 states and 1969 transitions. [2023-08-31 21:41:04,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 304 transitions, 1425 flow [2023-08-31 21:41:05,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 304 transitions, 1419 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-31 21:41:05,781 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 776 flow [2023-08-31 21:41:05,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=238, PETRI_TRANSITIONS=241} [2023-08-31 21:41:05,782 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -17 predicate places. [2023-08-31 21:41:05,782 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 776 flow [2023-08-31 21:41:05,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.6666666666666) internal successors, (1871), 3 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:41:05,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:41:05,783 INFO L208 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] [2023-08-31 21:41:05,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:41:05,783 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:41:05,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:41:05,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1697204968, now seen corresponding path program 1 times [2023-08-31 21:41:05,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:41:05,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186522123] [2023-08-31 21:41:05,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:41:05,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:41:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:41:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:41:06,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:41:06,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186522123] [2023-08-31 21:41:06,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186522123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:41:06,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:41:06,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:41:06,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982149653] [2023-08-31 21:41:06,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:41:06,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:41:06,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:41:06,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:41:06,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:41:06,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 1140 [2023-08-31 21:41:06,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 241 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:41:06,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:41:06,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 1140 [2023-08-31 21:41:06,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:42:13,760 INFO L130 PetriNetUnfolder]: 301921/658588 cut-off events. [2023-08-31 21:42:13,760 INFO L131 PetriNetUnfolder]: For 323594/324462 co-relation queries the response was YES. [2023-08-31 21:42:18,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292003 conditions, 658588 events. 301921/658588 cut-off events. For 323594/324462 co-relation queries the response was YES. Maximal size of possible extension queue 15367. Compared 9456456 event pairs, 195837 based on Foata normal form. 0/580992 useless extension candidates. Maximal degree in co-relation 1291980. Up to 364915 conditions per place. [2023-08-31 21:42:20,975 INFO L137 encePairwiseOnDemand]: 1133/1140 looper letters, 298 selfloop transitions, 5 changer transitions 0/426 dead transitions. [2023-08-31 21:42:20,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 426 transitions, 1886 flow [2023-08-31 21:42:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:42:20,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:42:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3852 transitions. [2023-08-31 21:42:20,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5631578947368421 [2023-08-31 21:42:20,980 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3852 transitions. [2023-08-31 21:42:20,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3852 transitions. [2023-08-31 21:42:20,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:42:20,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3852 transitions. [2023-08-31 21:42:20,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 642.0) internal successors, (3852), 6 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:42:20,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:42:20,988 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:42:20,988 INFO L175 Difference]: Start difference. First operand has 238 places, 241 transitions, 776 flow. Second operand 6 states and 3852 transitions. [2023-08-31 21:42:20,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 426 transitions, 1886 flow [2023-08-31 21:42:34,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 426 transitions, 1876 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:42:34,813 INFO L231 Difference]: Finished difference. Result has 240 places, 239 transitions, 780 flow [2023-08-31 21:42:34,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=780, PETRI_PLACES=240, PETRI_TRANSITIONS=239} [2023-08-31 21:42:34,813 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -15 predicate places. [2023-08-31 21:42:34,813 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 239 transitions, 780 flow [2023-08-31 21:42:34,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:42:34,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:42:34,814 INFO L208 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] [2023-08-31 21:42:34,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 21:42:34,814 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:42:34,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:42:34,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2086547458, now seen corresponding path program 1 times [2023-08-31 21:42:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:42:34,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336850204] [2023-08-31 21:42:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:42:34,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:42:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:42:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:42:34,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:42:34,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336850204] [2023-08-31 21:42:34,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336850204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:42:34,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:42:34,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:42:34,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162148166] [2023-08-31 21:42:34,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:42:34,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:42:34,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:42:34,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:42:34,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:42:35,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-31 21:42:35,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 239 transitions, 780 flow. Second operand has 6 states, 6 states have (on average 605.1666666666666) internal successors, (3631), 6 states have internal predecessors, (3631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:42:35,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:42:35,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-31 21:42:35,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:43:18,242 INFO L130 PetriNetUnfolder]: 205026/444492 cut-off events. [2023-08-31 21:43:18,242 INFO L131 PetriNetUnfolder]: For 209535/210029 co-relation queries the response was YES. [2023-08-31 21:43:21,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876644 conditions, 444492 events. 205026/444492 cut-off events. For 209535/210029 co-relation queries the response was YES. Maximal size of possible extension queue 10229. Compared 6051248 event pairs, 123463 based on Foata normal form. 2041/394208 useless extension candidates. Maximal degree in co-relation 876621. Up to 199070 conditions per place. [2023-08-31 21:43:23,099 INFO L137 encePairwiseOnDemand]: 1132/1140 looper letters, 257 selfloop transitions, 9 changer transitions 0/399 dead transitions. [2023-08-31 21:43:23,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 399 transitions, 1932 flow [2023-08-31 21:43:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:43:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:43:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3822 transitions. [2023-08-31 21:43:23,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587719298245614 [2023-08-31 21:43:23,103 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3822 transitions. [2023-08-31 21:43:23,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3822 transitions. [2023-08-31 21:43:23,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:43:23,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3822 transitions. [2023-08-31 21:43:23,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 637.0) internal successors, (3822), 6 states have internal predecessors, (3822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:23,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:23,114 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:23,114 INFO L175 Difference]: Start difference. First operand has 240 places, 239 transitions, 780 flow. Second operand 6 states and 3822 transitions. [2023-08-31 21:43:23,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 399 transitions, 1932 flow [2023-08-31 21:43:31,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 399 transitions, 1922 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:43:31,635 INFO L231 Difference]: Finished difference. Result has 243 places, 243 transitions, 819 flow [2023-08-31 21:43:31,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=819, PETRI_PLACES=243, PETRI_TRANSITIONS=243} [2023-08-31 21:43:31,635 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -12 predicate places. [2023-08-31 21:43:31,636 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 243 transitions, 819 flow [2023-08-31 21:43:31,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 605.1666666666666) internal successors, (3631), 6 states have internal predecessors, (3631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:31,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:43:31,637 INFO L208 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] [2023-08-31 21:43:31,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 21:43:31,637 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:43:31,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:43:31,637 INFO L85 PathProgramCache]: Analyzing trace with hash 218677775, now seen corresponding path program 1 times [2023-08-31 21:43:31,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:43:31,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776825483] [2023-08-31 21:43:31,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:43:31,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:43:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:43:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:43:31,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:43:31,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776825483] [2023-08-31 21:43:31,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776825483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:43:31,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:43:31,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:43:31,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969902478] [2023-08-31 21:43:31,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:43:31,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:43:31,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:43:31,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:43:31,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:43:31,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-31 21:43:31,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 243 transitions, 819 flow. Second operand has 5 states, 5 states have (on average 614.0) internal successors, (3070), 5 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:31,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:43:31,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-31 21:43:31,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:43:55,576 INFO L130 PetriNetUnfolder]: 122553/265001 cut-off events. [2023-08-31 21:43:55,577 INFO L131 PetriNetUnfolder]: For 160975/161809 co-relation queries the response was YES. [2023-08-31 21:43:57,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548660 conditions, 265001 events. 122553/265001 cut-off events. For 160975/161809 co-relation queries the response was YES. Maximal size of possible extension queue 5956. Compared 3383728 event pairs, 71694 based on Foata normal form. 1824/238643 useless extension candidates. Maximal degree in co-relation 548634. Up to 107358 conditions per place. [2023-08-31 21:43:58,396 INFO L137 encePairwiseOnDemand]: 1132/1140 looper letters, 293 selfloop transitions, 8 changer transitions 0/434 dead transitions. [2023-08-31 21:43:58,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 434 transitions, 2157 flow [2023-08-31 21:43:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:43:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:43:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4516 transitions. [2023-08-31 21:43:58,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5659147869674186 [2023-08-31 21:43:58,401 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4516 transitions. [2023-08-31 21:43:58,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4516 transitions. [2023-08-31 21:43:58,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:43:58,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4516 transitions. [2023-08-31 21:43:58,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 645.1428571428571) internal successors, (4516), 7 states have internal predecessors, (4516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:58,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:58,410 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:43:58,410 INFO L175 Difference]: Start difference. First operand has 243 places, 243 transitions, 819 flow. Second operand 7 states and 4516 transitions. [2023-08-31 21:43:58,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 434 transitions, 2157 flow [2023-08-31 21:44:00,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 434 transitions, 2147 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:44:00,727 INFO L231 Difference]: Finished difference. Result has 249 places, 245 transitions, 838 flow [2023-08-31 21:44:00,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=838, PETRI_PLACES=249, PETRI_TRANSITIONS=245} [2023-08-31 21:44:00,728 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -6 predicate places. [2023-08-31 21:44:00,728 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 245 transitions, 838 flow [2023-08-31 21:44:00,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 614.0) internal successors, (3070), 5 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:00,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:44:00,729 INFO L208 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] [2023-08-31 21:44:00,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 21:44:00,729 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:44:00,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:44:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1567304215, now seen corresponding path program 1 times [2023-08-31 21:44:00,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:44:00,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461586573] [2023-08-31 21:44:00,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:44:00,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:44:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:44:00,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:44:00,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:44:00,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461586573] [2023-08-31 21:44:00,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461586573] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:44:00,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:44:00,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:44:00,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640289475] [2023-08-31 21:44:00,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:44:00,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:44:00,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:44:00,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:44:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:44:01,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-31 21:44:01,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 245 transitions, 838 flow. Second operand has 6 states, 6 states have (on average 605.3333333333334) internal successors, (3632), 6 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:01,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:44:01,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-31 21:44:01,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:44:36,773 INFO L130 PetriNetUnfolder]: 178061/361075 cut-off events. [2023-08-31 21:44:36,773 INFO L131 PetriNetUnfolder]: For 237318/239738 co-relation queries the response was YES. [2023-08-31 21:44:39,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784792 conditions, 361075 events. 178061/361075 cut-off events. For 237318/239738 co-relation queries the response was YES. Maximal size of possible extension queue 8169. Compared 4566487 event pairs, 87839 based on Foata normal form. 1536/325136 useless extension candidates. Maximal degree in co-relation 784764. Up to 125925 conditions per place. [2023-08-31 21:44:41,168 INFO L137 encePairwiseOnDemand]: 1132/1140 looper letters, 354 selfloop transitions, 18 changer transitions 3/508 dead transitions. [2023-08-31 21:44:41,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 508 transitions, 2735 flow [2023-08-31 21:44:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:44:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:44:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4483 transitions. [2023-08-31 21:44:41,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5617794486215539 [2023-08-31 21:44:41,173 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4483 transitions. [2023-08-31 21:44:41,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4483 transitions. [2023-08-31 21:44:41,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:44:41,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4483 transitions. [2023-08-31 21:44:41,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 640.4285714285714) internal successors, (4483), 7 states have internal predecessors, (4483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:41,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:41,184 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:41,184 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 838 flow. Second operand 7 states and 4483 transitions. [2023-08-31 21:44:41,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 508 transitions, 2735 flow [2023-08-31 21:44:54,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 508 transitions, 2732 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:44:54,405 INFO L231 Difference]: Finished difference. Result has 258 places, 255 transitions, 960 flow [2023-08-31 21:44:54,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=960, PETRI_PLACES=258, PETRI_TRANSITIONS=255} [2023-08-31 21:44:54,406 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, 3 predicate places. [2023-08-31 21:44:54,406 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 255 transitions, 960 flow [2023-08-31 21:44:54,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 605.3333333333334) internal successors, (3632), 6 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:54,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:44:54,407 INFO L208 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] [2023-08-31 21:44:54,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 21:44:54,407 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:44:54,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:44:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash -971505397, now seen corresponding path program 1 times [2023-08-31 21:44:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:44:54,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569975769] [2023-08-31 21:44:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:44:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:44:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:44:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:44:54,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:44:54,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569975769] [2023-08-31 21:44:54,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569975769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:44:54,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:44:54,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:44:54,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964097225] [2023-08-31 21:44:54,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:44:54,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:44:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:44:54,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:44:54,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:44:55,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 1140 [2023-08-31 21:44:55,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 255 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 602.3333333333334) internal successors, (3614), 6 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:44:55,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:44:55,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 1140 [2023-08-31 21:44:55,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:45:46,619 INFO L130 PetriNetUnfolder]: 218149/445217 cut-off events. [2023-08-31 21:45:46,619 INFO L131 PetriNetUnfolder]: For 383040/383974 co-relation queries the response was YES. [2023-08-31 21:45:51,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984394 conditions, 445217 events. 218149/445217 cut-off events. For 383040/383974 co-relation queries the response was YES. Maximal size of possible extension queue 9005. Compared 5746960 event pairs, 127102 based on Foata normal form. 0/400296 useless extension candidates. Maximal degree in co-relation 984361. Up to 233216 conditions per place. [2023-08-31 21:45:53,957 INFO L137 encePairwiseOnDemand]: 1133/1140 looper letters, 344 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2023-08-31 21:45:53,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 470 transitions, 2485 flow [2023-08-31 21:45:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:45:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:45:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3850 transitions. [2023-08-31 21:45:53,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5628654970760234 [2023-08-31 21:45:53,963 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3850 transitions. [2023-08-31 21:45:53,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3850 transitions. [2023-08-31 21:45:53,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:45:53,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3850 transitions. [2023-08-31 21:45:53,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 641.6666666666666) internal successors, (3850), 6 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:45:53,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:45:53,972 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:45:53,973 INFO L175 Difference]: Start difference. First operand has 258 places, 255 transitions, 960 flow. Second operand 6 states and 3850 transitions. [2023-08-31 21:45:53,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 470 transitions, 2485 flow [2023-08-31 21:46:00,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 470 transitions, 2481 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-31 21:46:00,718 INFO L231 Difference]: Finished difference. Result has 261 places, 253 transitions, 962 flow [2023-08-31 21:46:00,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=261, PETRI_TRANSITIONS=253} [2023-08-31 21:46:00,719 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, 6 predicate places. [2023-08-31 21:46:00,719 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 253 transitions, 962 flow [2023-08-31 21:46:00,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 602.3333333333334) internal successors, (3614), 6 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:00,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:46:00,720 INFO L208 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] [2023-08-31 21:46:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 21:46:00,720 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:46:00,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:46:00,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2099032767, now seen corresponding path program 1 times [2023-08-31 21:46:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:46:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493451686] [2023-08-31 21:46:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:46:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:46:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:46:00,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:46:00,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:46:00,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493451686] [2023-08-31 21:46:00,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493451686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:46:00,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:46:00,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:46:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313110306] [2023-08-31 21:46:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:46:00,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:46:00,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:46:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:46:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:46:01,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-31 21:46:01,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 253 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 605.6666666666666) internal successors, (3634), 6 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:01,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:46:01,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-31 21:46:01,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:46:38,114 INFO L130 PetriNetUnfolder]: 155598/319680 cut-off events. [2023-08-31 21:46:38,115 INFO L131 PetriNetUnfolder]: For 289646/290470 co-relation queries the response was YES. [2023-08-31 21:46:41,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719175 conditions, 319680 events. 155598/319680 cut-off events. For 289646/290470 co-relation queries the response was YES. Maximal size of possible extension queue 6233. Compared 3985942 event pairs, 88077 based on Foata normal form. 1039/289521 useless extension candidates. Maximal degree in co-relation 719141. Up to 138185 conditions per place. [2023-08-31 21:46:42,631 INFO L137 encePairwiseOnDemand]: 1132/1140 looper letters, 334 selfloop transitions, 14 changer transitions 0/479 dead transitions. [2023-08-31 21:46:42,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 479 transitions, 2813 flow [2023-08-31 21:46:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:46:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:46:42,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4453 transitions. [2023-08-31 21:46:42,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5580200501253133 [2023-08-31 21:46:42,636 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4453 transitions. [2023-08-31 21:46:42,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4453 transitions. [2023-08-31 21:46:42,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:46:42,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4453 transitions. [2023-08-31 21:46:42,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 636.1428571428571) internal successors, (4453), 7 states have internal predecessors, (4453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:42,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:42,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:42,646 INFO L175 Difference]: Start difference. First operand has 261 places, 253 transitions, 962 flow. Second operand 7 states and 4453 transitions. [2023-08-31 21:46:42,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 479 transitions, 2813 flow [2023-08-31 21:46:48,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 479 transitions, 2801 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:46:48,754 INFO L231 Difference]: Finished difference. Result has 265 places, 258 transitions, 1021 flow [2023-08-31 21:46:48,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1021, PETRI_PLACES=265, PETRI_TRANSITIONS=258} [2023-08-31 21:46:48,754 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, 10 predicate places. [2023-08-31 21:46:48,754 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 258 transitions, 1021 flow [2023-08-31 21:46:48,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 605.6666666666666) internal successors, (3634), 6 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:48,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:46:48,755 INFO L208 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] [2023-08-31 21:46:48,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 21:46:48,755 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-31 21:46:48,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:46:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash 432959311, now seen corresponding path program 1 times [2023-08-31 21:46:48,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:46:48,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308131016] [2023-08-31 21:46:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:46:48,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:46:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:46:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:46:49,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:46:49,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308131016] [2023-08-31 21:46:49,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308131016] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:46:49,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:46:49,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:46:49,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690816188] [2023-08-31 21:46:49,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:46:49,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:46:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:46:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:46:49,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:46:49,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 1140 [2023-08-31 21:46:49,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 258 transitions, 1021 flow. Second operand has 6 states, 6 states have (on average 602.5) internal successors, (3615), 6 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:46:49,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:46:49,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 1140 [2023-08-31 21:46:49,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15