./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-subst.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-match-subst.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 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa --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 21:31:09,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:31:09,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:31:09,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:31:09,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:31:09,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:31:09,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:31:09,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:31:09,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:31:09,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:31:09,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:31:09,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:31:09,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:31:09,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:31:09,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:31:09,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:31:09,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:31:09,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:31:09,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:31:09,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:31:09,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:31:09,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:31:09,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:31:09,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:31:09,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:31:09,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:31:09,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:31:09,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:31:09,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:31:09,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:31:09,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:31:09,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:31:09,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:31:09,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:31:09,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:31:09,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:31:09,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:31:09,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:31:09,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:31:09,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:31:09,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:31:09,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:31:09,948 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:31:09,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:31:09,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:31:09,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:31:09,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:31:09,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:31:09,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:31:09,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:31:09,950 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:31:09,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:31:09,951 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:31:09,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:31:09,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:31:09,952 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:31:09,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:31:09,953 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:31:09,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:31:09,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:31:09,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:31:09,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:31:09,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:31:09,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:31:09,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:31:09,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:31:09,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:31:09,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:31:09,954 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:31:09,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:31:09,955 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:31:09,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:31:09,955 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:31:09,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:31:10,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:31:10,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:31:10,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:31:10,218 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:31:10,219 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:31:10,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-08-31 21:31:11,121 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:31:11,247 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:31:11,248 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-08-31 21:31:11,253 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cddb37505/d93d3c279c514142a03c4d82f358294b/FLAG8d0901157 [2023-08-31 21:31:11,269 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cddb37505/d93d3c279c514142a03c4d82f358294b [2023-08-31 21:31:11,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:31:11,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:31:11,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:31:11,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:31:11,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:31:11,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e8b18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11, skipping insertion in model container [2023-08-31 21:31:11,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:31:11,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:31:11,414 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-match-subst.wvr.c[3017,3030] [2023-08-31 21:31:11,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:31:11,423 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:31:11,443 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-match-subst.wvr.c[3017,3030] [2023-08-31 21:31:11,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:31:11,462 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:31:11,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11 WrapperNode [2023-08-31 21:31:11,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:31:11,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:31:11,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:31:11,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:31:11,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,519 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 352 [2023-08-31 21:31:11,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:31:11,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:31:11,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:31:11,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:31:11,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,563 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:31:11,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:31:11,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:31:11,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:31:11,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (1/1) ... [2023-08-31 21:31:11,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:31:11,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:31:11,593 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 21:31:11,612 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 21:31:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:31:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:31:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:31:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:31:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:31:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:31:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:31:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:31:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:31:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:31:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:31:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:31:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:31:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:31:11,624 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 21:31:11,763 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:31:11,765 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:31:12,172 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:31:12,182 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:31:12,182 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 21:31:12,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:31:12 BoogieIcfgContainer [2023-08-31 21:31:12,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:31:12,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:31:12,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:31:12,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:31:12,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:31:11" (1/3) ... [2023-08-31 21:31:12,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bdf778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:31:12, skipping insertion in model container [2023-08-31 21:31:12,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:31:11" (2/3) ... [2023-08-31 21:31:12,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bdf778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:31:12, skipping insertion in model container [2023-08-31 21:31:12,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:31:12" (3/3) ... [2023-08-31 21:31:12,189 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2023-08-31 21:31:12,199 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:31:12,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:31:12,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-08-31 21:31:12,211 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:31:12,371 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:31:12,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 430 places, 438 transitions, 900 flow [2023-08-31 21:31:12,587 INFO L130 PetriNetUnfolder]: 18/435 cut-off events. [2023-08-31 21:31:12,587 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:31:12,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 435 events. 18/435 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 747 event pairs, 0 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 286. Up to 2 conditions per place. [2023-08-31 21:31:12,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 430 places, 438 transitions, 900 flow [2023-08-31 21:31:12,628 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 415 transitions, 848 flow [2023-08-31 21:31:12,630 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:31:12,639 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 415 transitions, 848 flow [2023-08-31 21:31:12,641 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 415 transitions, 848 flow [2023-08-31 21:31:12,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 415 transitions, 848 flow [2023-08-31 21:31:12,702 INFO L130 PetriNetUnfolder]: 16/415 cut-off events. [2023-08-31 21:31:12,702 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:31:12,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 415 events. 16/415 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 730 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 286. Up to 2 conditions per place. [2023-08-31 21:31:12,719 INFO L119 LiptonReduction]: Number of co-enabled transitions 51030 [2023-08-31 21:31:18,956 INFO L134 LiptonReduction]: Checked pairs total: 141604 [2023-08-31 21:31:18,956 INFO L136 LiptonReduction]: Total number of compositions: 417 [2023-08-31 21:31:18,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:31:18,970 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;@1c48574a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:31:18,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2023-08-31 21:31:18,971 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:31:18,971 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:31:18,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:18,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:31:18,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:18,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:18,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1635, now seen corresponding path program 1 times [2023-08-31 21:31:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:18,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013186443] [2023-08-31 21:31:18,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:18,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:19,094 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 21:31:19,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013186443] [2023-08-31 21:31:19,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013186443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:19,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:19,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:31:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364496729] [2023-08-31 21:31:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:19,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:31:19,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:19,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:31:19,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:31:19,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 855 [2023-08-31 21:31:19,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 116 transitions, 250 flow. Second operand has 2 states, 2 states have (on average 417.5) internal successors, (835), 2 states have internal predecessors, (835), 0 states have call successors, (0), 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 21:31:19,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:19,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 855 [2023-08-31 21:31:19,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:19,658 INFO L130 PetriNetUnfolder]: 3105/6736 cut-off events. [2023-08-31 21:31:19,658 INFO L131 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2023-08-31 21:31:19,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11379 conditions, 6736 events. 3105/6736 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 57051 event pairs, 2653 based on Foata normal form. 445/6000 useless extension candidates. Maximal degree in co-relation 10461. Up to 4420 conditions per place. [2023-08-31 21:31:19,700 INFO L137 encePairwiseOnDemand]: 834/855 looper letters, 35 selfloop transitions, 0 changer transitions 1/92 dead transitions. [2023-08-31 21:31:19,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 274 flow [2023-08-31 21:31:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:31:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:31:19,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 891 transitions. [2023-08-31 21:31:19,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5210526315789473 [2023-08-31 21:31:19,715 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 891 transitions. [2023-08-31 21:31:19,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 891 transitions. [2023-08-31 21:31:19,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:19,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 891 transitions. [2023-08-31 21:31:19,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 445.5) internal successors, (891), 2 states have internal predecessors, (891), 0 states have call successors, (0), 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 21:31:19,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 855.0) internal successors, (2565), 3 states have internal predecessors, (2565), 0 states have call successors, (0), 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 21:31:19,729 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 855.0) internal successors, (2565), 3 states have internal predecessors, (2565), 0 states have call successors, (0), 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 21:31:19,731 INFO L175 Difference]: Start difference. First operand has 120 places, 116 transitions, 250 flow. Second operand 2 states and 891 transitions. [2023-08-31 21:31:19,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 274 flow [2023-08-31 21:31:19,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 262 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:31:19,738 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 187 flow [2023-08-31 21:31:19,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=187, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2023-08-31 21:31:19,741 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -26 predicate places. [2023-08-31 21:31:19,741 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 187 flow [2023-08-31 21:31:19,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 417.5) internal successors, (835), 2 states have internal predecessors, (835), 0 states have call successors, (0), 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 21:31:19,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:19,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 21:31:19,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:31:19,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:19,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:19,743 INFO L85 PathProgramCache]: Analyzing trace with hash 50213821, now seen corresponding path program 1 times [2023-08-31 21:31:19,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875863725] [2023-08-31 21:31:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:19,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:19,823 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 21:31:19,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:19,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875863725] [2023-08-31 21:31:19,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875863725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:19,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:19,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:19,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597410447] [2023-08-31 21:31:19,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:19,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:19,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:19,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:19,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:19,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:19,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 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 21:31:19,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:19,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:19,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:20,491 INFO L130 PetriNetUnfolder]: 4757/10417 cut-off events. [2023-08-31 21:31:20,492 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 21:31:20,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17285 conditions, 10417 events. 4757/10417 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 94564 event pairs, 1447 based on Foata normal form. 0/9132 useless extension candidates. Maximal degree in co-relation 17282. Up to 6724 conditions per place. [2023-08-31 21:31:20,534 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 52 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2023-08-31 21:31:20,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 104 transitions, 323 flow [2023-08-31 21:31:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:20,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2023-08-31 21:31:20,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501364522417154 [2023-08-31 21:31:20,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2023-08-31 21:31:20,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2023-08-31 21:31:20,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:20,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2023-08-31 21:31:20,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 0 states have call successors, (0), 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 21:31:20,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:20,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:20,545 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 187 flow. Second operand 3 states and 1286 transitions. [2023-08-31 21:31:20,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 104 transitions, 323 flow [2023-08-31 21:31:20,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:20,547 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 197 flow [2023-08-31 21:31:20,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2023-08-31 21:31:20,548 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -26 predicate places. [2023-08-31 21:31:20,548 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 197 flow [2023-08-31 21:31:20,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 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 21:31:20,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:20,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:31:20,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:31:20,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:20,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:20,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1010873183, now seen corresponding path program 1 times [2023-08-31 21:31:20,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:20,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395903888] [2023-08-31 21:31:20,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:20,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:20,608 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 21:31:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395903888] [2023-08-31 21:31:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395903888] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:20,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:20,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206840543] [2023-08-31 21:31:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:20,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:20,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:20,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:20,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:20,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 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 21:31:20,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:20,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:20,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:21,153 INFO L130 PetriNetUnfolder]: 4114/9116 cut-off events. [2023-08-31 21:31:21,154 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2023-08-31 21:31:21,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15119 conditions, 9116 events. 4114/9116 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 80945 event pairs, 2473 based on Foata normal form. 0/7657 useless extension candidates. Maximal degree in co-relation 15115. Up to 5864 conditions per place. [2023-08-31 21:31:21,194 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 50 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2023-08-31 21:31:21,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 329 flow [2023-08-31 21:31:21,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2023-08-31 21:31:21,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5005847953216375 [2023-08-31 21:31:21,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2023-08-31 21:31:21,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2023-08-31 21:31:21,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:21,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2023-08-31 21:31:21,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 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 21:31:21,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:21,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:21,205 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 197 flow. Second operand 3 states and 1284 transitions. [2023-08-31 21:31:21,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 329 flow [2023-08-31 21:31:21,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 104 transitions, 329 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:21,207 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 207 flow [2023-08-31 21:31:21,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2023-08-31 21:31:21,207 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -25 predicate places. [2023-08-31 21:31:21,208 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 207 flow [2023-08-31 21:31:21,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 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 21:31:21,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:21,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:21,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:31:21,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:21,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash 281628745, now seen corresponding path program 1 times [2023-08-31 21:31:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:21,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647202354] [2023-08-31 21:31:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:21,247 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 21:31:21,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647202354] [2023-08-31 21:31:21,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647202354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:21,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:21,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:21,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303542299] [2023-08-31 21:31:21,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:21,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:21,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:21,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:21,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:21,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:21,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 0 states have call successors, (0), 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 21:31:21,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:21,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:21,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:21,919 INFO L130 PetriNetUnfolder]: 4741/10201 cut-off events. [2023-08-31 21:31:21,920 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 21:31:21,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17148 conditions, 10201 events. 4741/10201 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 91591 event pairs, 1157 based on Foata normal form. 0/8708 useless extension candidates. Maximal degree in co-relation 17143. Up to 6572 conditions per place. [2023-08-31 21:31:21,969 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 52 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2023-08-31 21:31:21,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 105 transitions, 345 flow [2023-08-31 21:31:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2023-08-31 21:31:21,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501364522417154 [2023-08-31 21:31:21,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2023-08-31 21:31:21,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2023-08-31 21:31:21,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:21,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2023-08-31 21:31:21,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 0 states have call successors, (0), 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 21:31:21,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:21,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:21,979 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 207 flow. Second operand 3 states and 1286 transitions. [2023-08-31 21:31:21,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 105 transitions, 345 flow [2023-08-31 21:31:21,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 105 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:21,981 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 217 flow [2023-08-31 21:31:21,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2023-08-31 21:31:21,983 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -24 predicate places. [2023-08-31 21:31:21,983 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 217 flow [2023-08-31 21:31:21,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 0 states have call successors, (0), 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 21:31:21,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:21,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:21,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:31:21,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:21,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash -576823558, now seen corresponding path program 1 times [2023-08-31 21:31:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:21,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10047985] [2023-08-31 21:31:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:21,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:22,038 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 21:31:22,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:22,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10047985] [2023-08-31 21:31:22,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10047985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:22,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:22,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:22,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447930638] [2023-08-31 21:31:22,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:22,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:22,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:22,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:22,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:22,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:22,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 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 21:31:22,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:22,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:22,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:22,609 INFO L130 PetriNetUnfolder]: 4595/9773 cut-off events. [2023-08-31 21:31:22,609 INFO L131 PetriNetUnfolder]: For 284/284 co-relation queries the response was YES. [2023-08-31 21:31:22,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16820 conditions, 9773 events. 4595/9773 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 86241 event pairs, 1131 based on Foata normal form. 0/8369 useless extension candidates. Maximal degree in co-relation 16814. Up to 6302 conditions per place. [2023-08-31 21:31:22,652 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 54 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2023-08-31 21:31:22,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 107 transitions, 368 flow [2023-08-31 21:31:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2023-08-31 21:31:22,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501364522417154 [2023-08-31 21:31:22,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2023-08-31 21:31:22,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2023-08-31 21:31:22,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:22,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2023-08-31 21:31:22,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 0 states have call successors, (0), 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 21:31:22,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:22,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:22,661 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 217 flow. Second operand 3 states and 1286 transitions. [2023-08-31 21:31:22,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 107 transitions, 368 flow [2023-08-31 21:31:22,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 107 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:22,663 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 227 flow [2023-08-31 21:31:22,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2023-08-31 21:31:22,664 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -23 predicate places. [2023-08-31 21:31:22,664 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 227 flow [2023-08-31 21:31:22,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 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 21:31:22,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:22,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:22,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:31:22,665 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:22,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:22,666 INFO L85 PathProgramCache]: Analyzing trace with hash 62320939, now seen corresponding path program 1 times [2023-08-31 21:31:22,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:22,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927570452] [2023-08-31 21:31:22,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:22,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:22,688 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 21:31:22,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:22,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927570452] [2023-08-31 21:31:22,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927570452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:22,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:22,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:22,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063486830] [2023-08-31 21:31:22,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:22,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:22,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:22,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:22,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 0 states have call successors, (0), 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 21:31:22,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:22,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:22,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:23,219 INFO L130 PetriNetUnfolder]: 4505/9715 cut-off events. [2023-08-31 21:31:23,219 INFO L131 PetriNetUnfolder]: For 569/569 co-relation queries the response was YES. [2023-08-31 21:31:23,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17190 conditions, 9715 events. 4505/9715 cut-off events. For 569/569 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 86594 event pairs, 991 based on Foata normal form. 0/8395 useless extension candidates. Maximal degree in co-relation 17183. Up to 6140 conditions per place. [2023-08-31 21:31:23,262 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 55 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2023-08-31 21:31:23,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 106 transitions, 378 flow [2023-08-31 21:31:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2023-08-31 21:31:23,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501364522417154 [2023-08-31 21:31:23,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2023-08-31 21:31:23,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2023-08-31 21:31:23,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:23,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2023-08-31 21:31:23,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 0 states have call successors, (0), 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 21:31:23,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:23,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:23,272 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 227 flow. Second operand 3 states and 1286 transitions. [2023-08-31 21:31:23,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 106 transitions, 378 flow [2023-08-31 21:31:23,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 106 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:23,274 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 237 flow [2023-08-31 21:31:23,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2023-08-31 21:31:23,275 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -22 predicate places. [2023-08-31 21:31:23,275 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 237 flow [2023-08-31 21:31:23,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 0 states have call successors, (0), 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 21:31:23,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:23,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:23,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:31:23,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:23,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash -276623108, now seen corresponding path program 1 times [2023-08-31 21:31:23,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:23,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018914702] [2023-08-31 21:31:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:23,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:23,297 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 21:31:23,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:23,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018914702] [2023-08-31 21:31:23,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018914702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:23,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:23,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:23,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937713337] [2023-08-31 21:31:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:23,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:23,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:23,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:23,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:23,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:23,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 0 states have call successors, (0), 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 21:31:23,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:23,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:23,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:23,943 INFO L130 PetriNetUnfolder]: 4768/10336 cut-off events. [2023-08-31 21:31:23,944 INFO L131 PetriNetUnfolder]: For 704/704 co-relation queries the response was YES. [2023-08-31 21:31:23,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18286 conditions, 10336 events. 4768/10336 cut-off events. For 704/704 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 92574 event pairs, 1130 based on Foata normal form. 0/8808 useless extension candidates. Maximal degree in co-relation 18278. Up to 6100 conditions per place. [2023-08-31 21:31:23,998 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2023-08-31 21:31:23,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 109 transitions, 404 flow [2023-08-31 21:31:23,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:23,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1288 transitions. [2023-08-31 21:31:24,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5021442495126706 [2023-08-31 21:31:24,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1288 transitions. [2023-08-31 21:31:24,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1288 transitions. [2023-08-31 21:31:24,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:24,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1288 transitions. [2023-08-31 21:31:24,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.3333333333333) internal successors, (1288), 3 states have internal predecessors, (1288), 0 states have call successors, (0), 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 21:31:24,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:24,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:24,007 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 237 flow. Second operand 3 states and 1288 transitions. [2023-08-31 21:31:24,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 109 transitions, 404 flow [2023-08-31 21:31:24,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:24,009 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 247 flow [2023-08-31 21:31:24,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2023-08-31 21:31:24,010 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -21 predicate places. [2023-08-31 21:31:24,010 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 247 flow [2023-08-31 21:31:24,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 0 states have call successors, (0), 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 21:31:24,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:24,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:24,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:31:24,011 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:24,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:24,012 INFO L85 PathProgramCache]: Analyzing trace with hash -831704553, now seen corresponding path program 1 times [2023-08-31 21:31:24,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:24,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925026508] [2023-08-31 21:31:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:24,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:24,038 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 21:31:24,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:24,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925026508] [2023-08-31 21:31:24,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925026508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:24,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:24,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:24,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754612062] [2023-08-31 21:31:24,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:24,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:24,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:24,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 855 [2023-08-31 21:31:24,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 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 21:31:24,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:24,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 855 [2023-08-31 21:31:24,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:24,912 INFO L130 PetriNetUnfolder]: 7153/13161 cut-off events. [2023-08-31 21:31:24,913 INFO L131 PetriNetUnfolder]: For 869/869 co-relation queries the response was YES. [2023-08-31 21:31:24,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25063 conditions, 13161 events. 7153/13161 cut-off events. For 869/869 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 106780 event pairs, 1761 based on Foata normal form. 0/12234 useless extension candidates. Maximal degree in co-relation 25054. Up to 9134 conditions per place. [2023-08-31 21:31:24,983 INFO L137 encePairwiseOnDemand]: 849/855 looper letters, 66 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2023-08-31 21:31:24,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 111 transitions, 440 flow [2023-08-31 21:31:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:24,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:24,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2023-08-31 21:31:24,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4982456140350877 [2023-08-31 21:31:24,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2023-08-31 21:31:24,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2023-08-31 21:31:24,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:24,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2023-08-31 21:31:24,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 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 21:31:24,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:24,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:24,992 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 247 flow. Second operand 3 states and 1278 transitions. [2023-08-31 21:31:24,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 111 transitions, 440 flow [2023-08-31 21:31:24,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 111 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:24,994 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 253 flow [2023-08-31 21:31:24,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2023-08-31 21:31:24,995 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -22 predicate places. [2023-08-31 21:31:24,995 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 253 flow [2023-08-31 21:31:24,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 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 21:31:24,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:24,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:24,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:31:24,996 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:25,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash -404125127, now seen corresponding path program 1 times [2023-08-31 21:31:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323129433] [2023-08-31 21:31:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:25,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:25,034 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 21:31:25,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323129433] [2023-08-31 21:31:25,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323129433] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:25,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:25,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:25,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900289633] [2023-08-31 21:31:25,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:25,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:25,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:25,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:25,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:25,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 855 [2023-08-31 21:31:25,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 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 21:31:25,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:25,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 855 [2023-08-31 21:31:25,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:25,627 INFO L130 PetriNetUnfolder]: 5883/10937 cut-off events. [2023-08-31 21:31:25,627 INFO L131 PetriNetUnfolder]: For 1219/1219 co-relation queries the response was YES. [2023-08-31 21:31:25,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21658 conditions, 10937 events. 5883/10937 cut-off events. For 1219/1219 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 86269 event pairs, 1520 based on Foata normal form. 0/9941 useless extension candidates. Maximal degree in co-relation 21648. Up to 6811 conditions per place. [2023-08-31 21:31:25,679 INFO L137 encePairwiseOnDemand]: 849/855 looper letters, 68 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2023-08-31 21:31:25,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 111 transitions, 461 flow [2023-08-31 21:31:25,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:25,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1277 transitions. [2023-08-31 21:31:25,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49785575048732944 [2023-08-31 21:31:25,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1277 transitions. [2023-08-31 21:31:25,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1277 transitions. [2023-08-31 21:31:25,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:25,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1277 transitions. [2023-08-31 21:31:25,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 425.6666666666667) internal successors, (1277), 3 states have internal predecessors, (1277), 0 states have call successors, (0), 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 21:31:25,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:25,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:25,687 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 253 flow. Second operand 3 states and 1277 transitions. [2023-08-31 21:31:25,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 111 transitions, 461 flow [2023-08-31 21:31:25,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 111 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:25,690 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 259 flow [2023-08-31 21:31:25,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2023-08-31 21:31:25,691 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -23 predicate places. [2023-08-31 21:31:25,691 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 259 flow [2023-08-31 21:31:25,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 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 21:31:25,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:25,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:25,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:31:25,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:25,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:25,692 INFO L85 PathProgramCache]: Analyzing trace with hash 357039010, now seen corresponding path program 1 times [2023-08-31 21:31:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:25,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248045594] [2023-08-31 21:31:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:25,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:25,711 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 21:31:25,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:25,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248045594] [2023-08-31 21:31:25,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248045594] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:25,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:25,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:25,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919209508] [2023-08-31 21:31:25,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:25,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:25,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:25,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:25,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:25,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 855 [2023-08-31 21:31:25,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 87 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 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 21:31:25,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:25,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 855 [2023-08-31 21:31:25,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:26,208 INFO L130 PetriNetUnfolder]: 4149/8759 cut-off events. [2023-08-31 21:31:26,209 INFO L131 PetriNetUnfolder]: For 1054/1054 co-relation queries the response was YES. [2023-08-31 21:31:26,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17061 conditions, 8759 events. 4149/8759 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 73618 event pairs, 2886 based on Foata normal form. 0/7910 useless extension candidates. Maximal degree in co-relation 17050. Up to 5278 conditions per place. [2023-08-31 21:31:26,293 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 61 selfloop transitions, 3 changer transitions 0/109 dead transitions. [2023-08-31 21:31:26,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 109 transitions, 447 flow [2023-08-31 21:31:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1290 transitions. [2023-08-31 21:31:26,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029239766081871 [2023-08-31 21:31:26,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1290 transitions. [2023-08-31 21:31:26,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1290 transitions. [2023-08-31 21:31:26,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:26,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1290 transitions. [2023-08-31 21:31:26,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.0) internal successors, (1290), 3 states have internal predecessors, (1290), 0 states have call successors, (0), 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 21:31:26,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:26,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:26,301 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 259 flow. Second operand 3 states and 1290 transitions. [2023-08-31 21:31:26,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 109 transitions, 447 flow [2023-08-31 21:31:26,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:26,303 INFO L231 Difference]: Finished difference. Result has 98 places, 86 transitions, 263 flow [2023-08-31 21:31:26,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=98, PETRI_TRANSITIONS=86} [2023-08-31 21:31:26,305 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -22 predicate places. [2023-08-31 21:31:26,305 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 86 transitions, 263 flow [2023-08-31 21:31:26,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 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 21:31:26,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:26,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:26,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:31:26,306 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:26,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2082917620, now seen corresponding path program 1 times [2023-08-31 21:31:26,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:26,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475221656] [2023-08-31 21:31:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:26,332 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 21:31:26,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475221656] [2023-08-31 21:31:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475221656] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:26,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:26,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:26,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487660550] [2023-08-31 21:31:26,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:26,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:26,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:26,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:26,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:26,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 855 [2023-08-31 21:31:26,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:26,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:26,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 855 [2023-08-31 21:31:26,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:26,980 INFO L130 PetriNetUnfolder]: 6810/11562 cut-off events. [2023-08-31 21:31:26,980 INFO L131 PetriNetUnfolder]: For 2423/2423 co-relation queries the response was YES. [2023-08-31 21:31:27,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25224 conditions, 11562 events. 6810/11562 cut-off events. For 2423/2423 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 81197 event pairs, 1868 based on Foata normal form. 0/10781 useless extension candidates. Maximal degree in co-relation 25212. Up to 7698 conditions per place. [2023-08-31 21:31:27,036 INFO L137 encePairwiseOnDemand]: 849/855 looper letters, 71 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2023-08-31 21:31:27,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 109 transitions, 487 flow [2023-08-31 21:31:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2023-08-31 21:31:27,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498635477582846 [2023-08-31 21:31:27,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2023-08-31 21:31:27,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2023-08-31 21:31:27,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:27,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2023-08-31 21:31:27,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 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 21:31:27,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:27,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:27,044 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 263 flow. Second operand 3 states and 1279 transitions. [2023-08-31 21:31:27,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 109 transitions, 487 flow [2023-08-31 21:31:27,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 109 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:31:27,059 INFO L231 Difference]: Finished difference. Result has 95 places, 84 transitions, 263 flow [2023-08-31 21:31:27,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=95, PETRI_TRANSITIONS=84} [2023-08-31 21:31:27,059 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -25 predicate places. [2023-08-31 21:31:27,059 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 84 transitions, 263 flow [2023-08-31 21:31:27,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:27,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:27,060 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 21:31:27,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:31:27,060 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-31 21:31:27,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:27,061 INFO L85 PathProgramCache]: Analyzing trace with hash -145923554, now seen corresponding path program 1 times [2023-08-31 21:31:27,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:27,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286042507] [2023-08-31 21:31:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:27,082 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 21:31:27,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286042507] [2023-08-31 21:31:27,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286042507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:27,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:27,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:27,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690345147] [2023-08-31 21:31:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:27,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:27,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:27,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:27,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:27,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 855 [2023-08-31 21:31:27,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 84 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 413.3333333333333) internal successors, (1240), 3 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:27,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:27,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 855 [2023-08-31 21:31:27,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:27,603 INFO L130 PetriNetUnfolder]: 4292/8518 cut-off events. [2023-08-31 21:31:27,603 INFO L131 PetriNetUnfolder]: For 1063/1063 co-relation queries the response was YES. [2023-08-31 21:31:27,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17624 conditions, 8518 events. 4292/8518 cut-off events. For 1063/1063 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 66885 event pairs, 2905 based on Foata normal form. 0/7865 useless extension candidates. Maximal degree in co-relation 17612. Up to 5305 conditions per place. [2023-08-31 21:31:27,624 INFO L137 encePairwiseOnDemand]: 851/855 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2023-08-31 21:31:27,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 106 transitions, 451 flow [2023-08-31 21:31:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1287 transitions. [2023-08-31 21:31:27,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5017543859649123 [2023-08-31 21:31:27,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1287 transitions. [2023-08-31 21:31:27,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1287 transitions. [2023-08-31 21:31:27,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:27,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1287 transitions. [2023-08-31 21:31:27,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 0 states have call successors, (0), 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 21:31:27,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:27,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 855.0) internal successors, (3420), 4 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 21:31:27,631 INFO L175 Difference]: Start difference. First operand has 95 places, 84 transitions, 263 flow. Second operand 3 states and 1287 transitions. [2023-08-31 21:31:27,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 106 transitions, 451 flow [2023-08-31 21:31:27,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 106 transitions, 451 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:27,633 INFO L231 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2023-08-31 21:31:27,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=855, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2023-08-31 21:31:27,634 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -24 predicate places. [2023-08-31 21:31:27,634 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2023-08-31 21:31:27,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.3333333333333) internal successors, (1240), 3 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2023-08-31 21:31:27,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2023-08-31 21:31:27,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2023-08-31 21:31:27,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2023-08-31 21:31:27,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2023-08-31 21:31:27,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2023-08-31 21:31:27,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2023-08-31 21:31:27,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2023-08-31 21:31:27,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2023-08-31 21:31:27,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2023-08-31 21:31:27,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2023-08-31 21:31:27,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2023-08-31 21:31:27,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2023-08-31 21:31:27,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2023-08-31 21:31:27,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2023-08-31 21:31:27,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2023-08-31 21:31:27,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2023-08-31 21:31:27,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2023-08-31 21:31:27,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2023-08-31 21:31:27,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2023-08-31 21:31:27,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2023-08-31 21:31:27,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2023-08-31 21:31:27,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2023-08-31 21:31:27,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2023-08-31 21:31:27,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2023-08-31 21:31:27,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2023-08-31 21:31:27,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2023-08-31 21:31:27,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2023-08-31 21:31:27,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2023-08-31 21:31:27,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2023-08-31 21:31:27,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:31:27,652 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:27,656 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:31:27,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:31:27,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:31:27 BasicIcfg [2023-08-31 21:31:27,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:31:27,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:31:27,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:31:27,660 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:31:27,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:31:12" (3/4) ... [2023-08-31 21:31:27,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:31:27,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:31:27,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:31:27,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 21:31:27,670 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 21:31:27,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:31:27,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:31:27,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:31:27,702 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:31:27,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:31:27,703 INFO L158 Benchmark]: Toolchain (without parser) took 16428.16ms. Allocated memory was 73.4MB in the beginning and 1.8GB in the end (delta: 1.8GB). Free memory was 40.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 326.5MB. Max. memory is 16.1GB. [2023-08-31 21:31:27,703 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:31:27,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.91ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 46.5MB in the end (delta: -6.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-08-31 21:31:27,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.11ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 43.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:31:27,704 INFO L158 Benchmark]: Boogie Preprocessor took 45.86ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 41.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:31:27,704 INFO L158 Benchmark]: RCFGBuilder took 613.72ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 34.2MB in the end (delta: 7.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-08-31 21:31:27,704 INFO L158 Benchmark]: TraceAbstraction took 15474.21ms. Allocated memory was 73.4MB in the beginning and 1.8GB in the end (delta: 1.8GB). Free memory was 33.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-08-31 21:31:27,704 INFO L158 Benchmark]: Witness Printer took 43.09ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:31:27,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.91ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 46.5MB in the end (delta: -6.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.11ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 43.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.86ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 41.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.72ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 34.2MB in the end (delta: 7.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15474.21ms. Allocated memory was 73.4MB in the beginning and 1.8GB in the end (delta: 1.8GB). Free memory was 33.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 43.09ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 409 PlacesBefore, 120 PlacesAfterwards, 415 TransitionsBefore, 116 TransitionsAfterwards, 51030 CoEnabledTransitionPairs, 8 FixpointIterations, 168 TrivialSequentialCompositions, 184 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 54 ConcurrentYvCompositions, 10 ChoiceCompositions, 417 TotalNumberOfCompositions, 141604 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 77148, independent: 75977, independent conditional: 0, independent unconditional: 75977, dependent: 1171, dependent conditional: 0, dependent unconditional: 1171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 29267, independent: 29112, independent conditional: 0, independent unconditional: 29112, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 77148, independent: 46865, independent conditional: 0, independent unconditional: 46865, dependent: 1016, dependent conditional: 0, dependent unconditional: 1016, unknown: 29267, unknown conditional: 0, unknown unconditional: 29267] , Statistics on independence cache: Total cache size (in pairs): 2373, Positive cache size: 2291, Positive conditional cache size: 0, Positive unconditional cache size: 2291, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 655 locations, 74 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 528 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 376 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 962 IncrementalHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 64 mSDtfsCounter, 962 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=10, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:31:27,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE