./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:18:03,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:18:03,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:18:04,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:18:04,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:18:04,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:18:04,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:18:04,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:18:04,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:18:04,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:18:04,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:18:04,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:18:04,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:18:04,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:18:04,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:18:04,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:18:04,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:18:04,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:18:04,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:18:04,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:18:04,021 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:18:04,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:18:04,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:18:04,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:18:04,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:18:04,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:18:04,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:18:04,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:18:04,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:18:04,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:18:04,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:18:04,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:18:04,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:18:04,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:18:04,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:18:04,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:18:04,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:18:04,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:18:04,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:18:04,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:18:04,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:18:04,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:18:04,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:18:04,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:18:04,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:18:04,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:18:04,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:18:04,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:18:04,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:18:04,069 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:18:04,069 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:18:04,069 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:18:04,070 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:18:04,070 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:18:04,070 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:18:04,070 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:18:04,070 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:18:04,071 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:18:04,071 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:18:04,071 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:18:04,071 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:18:04,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:18:04,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:18:04,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:18:04,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:18:04,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:18:04,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:18:04,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:18:04,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:18:04,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:18:04,074 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:18:04,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:18:04,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:18:04,074 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:18:04,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:18:04,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:18:04,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:18:04,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:18:04,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:18:04,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:18:04,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:18:04,075 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:18:04,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:18:04,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:18:04,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:18:04,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:18:04,076 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 [2022-04-18 19:18:04,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:18:04,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:18:04,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:18:04,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:18:04,301 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:18:04,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2022-04-18 19:18:04,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d66c5653b/b60ed647bd1d48c1aec16ac0c7c7ac79/FLAGecdc98464 [2022-04-18 19:18:04,778 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:18:04,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2022-04-18 19:18:04,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d66c5653b/b60ed647bd1d48c1aec16ac0c7c7ac79/FLAGecdc98464 [2022-04-18 19:18:05,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d66c5653b/b60ed647bd1d48c1aec16ac0c7c7ac79 [2022-04-18 19:18:05,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:18:05,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:18:05,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:18:05,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:18:05,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:18:05,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5c8e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05, skipping insertion in model container [2022-04-18 19:18:05,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:18:05,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:18:05,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i[30726,30739] [2022-04-18 19:18:05,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:18:05,476 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:18:05,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i[30726,30739] [2022-04-18 19:18:05,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:18:05,531 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:18:05,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05 WrapperNode [2022-04-18 19:18:05,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:18:05,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:18:05,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:18:05,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:18:05,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,586 INFO L137 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 155 [2022-04-18 19:18:05,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:18:05,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:18:05,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:18:05,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:18:05,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:18:05,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:18:05,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:18:05,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:18:05,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (1/1) ... [2022-04-18 19:18:05,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:18:05,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:18:05,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:18:05,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:18:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:18:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:18:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:18:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:18:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:18:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:18:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:18:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:18:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:18:05,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:18:05,667 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:18:05,768 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:18:05,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:18:06,075 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:18:06,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:18:06,151 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 19:18:06,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:18:06 BoogieIcfgContainer [2022-04-18 19:18:06,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:18:06,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:18:06,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:18:06,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:18:06,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:18:05" (1/3) ... [2022-04-18 19:18:06,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1f61d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:18:06, skipping insertion in model container [2022-04-18 19:18:06,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:18:05" (2/3) ... [2022-04-18 19:18:06,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1f61d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:18:06, skipping insertion in model container [2022-04-18 19:18:06,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:18:06" (3/3) ... [2022-04-18 19:18:06,161 INFO L111 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2022-04-18 19:18:06,168 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:18:06,168 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:18:06,169 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-04-18 19:18:06,169 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:18:06,230 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:18:06,276 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:18:06,282 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:18:06,282 INFO L341 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-04-18 19:18:06,294 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:18:06,303 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 133 transitions, 271 flow [2022-04-18 19:18:06,305 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 133 transitions, 271 flow [2022-04-18 19:18:06,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 133 transitions, 271 flow [2022-04-18 19:18:06,354 INFO L129 PetriNetUnfolder]: 7/144 cut-off events. [2022-04-18 19:18:06,354 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:18:06,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 7/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 151 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 114. Up to 4 conditions per place. [2022-04-18 19:18:06,362 INFO L116 LiptonReduction]: Number of co-enabled transitions 2828 [2022-04-18 19:18:09,377 INFO L131 LiptonReduction]: Checked pairs total: 4366 [2022-04-18 19:18:09,377 INFO L133 LiptonReduction]: Total number of compositions: 204 [2022-04-18 19:18:09,384 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 35 transitions, 75 flow [2022-04-18 19:18:09,411 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 142 states, 103 states have (on average 2.504854368932039) internal successors, (258), 141 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 103 states have (on average 2.504854368932039) internal successors, (258), 141 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:18:09,417 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:09,417 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:18:09,418 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 19:18:09,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:09,421 INFO L85 PathProgramCache]: Analyzing trace with hash 713366287, now seen corresponding path program 1 times [2022-04-18 19:18:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:18:09,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416993671] [2022-04-18 19:18:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:18:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:18:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:18:09,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:18:09,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416993671] [2022-04-18 19:18:09,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416993671] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:18:09,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:18:09,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:18:09,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681814959] [2022-04-18 19:18:09,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:18:09,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:18:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:18:09,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:18:09,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:18:09,585 INFO L87 Difference]: Start difference. First operand has 142 states, 103 states have (on average 2.504854368932039) internal successors, (258), 141 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:09,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:18:09,619 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2022-04-18 19:18:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:18:09,621 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 19:18:09,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:18:09,625 INFO L225 Difference]: With dead ends: 35 [2022-04-18 19:18:09,625 INFO L226 Difference]: Without dead ends: 35 [2022-04-18 19:18:09,626 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:18:09,628 INFO L913 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:18:09,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:18:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-04-18 19:18:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-04-18 19:18:09,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 34 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 59 transitions. [2022-04-18 19:18:09,650 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 59 transitions. Word has length 5 [2022-04-18 19:18:09,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:18:09,651 INFO L478 AbstractCegarLoop]: Abstraction has 35 states and 59 transitions. [2022-04-18 19:18:09,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2022-04-18 19:18:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:18:09,651 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:09,651 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:18:09,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:18:09,652 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 19:18:09,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash 639675747, now seen corresponding path program 1 times [2022-04-18 19:18:09,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:18:09,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039019681] [2022-04-18 19:18:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:18:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:18:09,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:18:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:18:09,697 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:18:09,698 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:18:09,699 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2022-04-18 19:18:09,700 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2022-04-18 19:18:09,700 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2022-04-18 19:18:09,700 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2022-04-18 19:18:09,700 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2022-04-18 19:18:09,701 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2022-04-18 19:18:09,701 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2022-04-18 19:18:09,701 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2022-04-18 19:18:09,701 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2022-04-18 19:18:09,701 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2022-04-18 19:18:09,702 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2022-04-18 19:18:09,702 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2022-04-18 19:18:09,702 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2022-04-18 19:18:09,702 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2022-04-18 19:18:09,702 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2022-04-18 19:18:09,702 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2022-04-18 19:18:09,703 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2022-04-18 19:18:09,703 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2022-04-18 19:18:09,703 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2022-04-18 19:18:09,703 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2022-04-18 19:18:09,703 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2022-04-18 19:18:09,704 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2022-04-18 19:18:09,704 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2022-04-18 19:18:09,704 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2022-04-18 19:18:09,704 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2022-04-18 19:18:09,704 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2022-04-18 19:18:09,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2022-04-18 19:18:09,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2022-04-18 19:18:09,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2022-04-18 19:18:09,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2022-04-18 19:18:09,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2022-04-18 19:18:09,705 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2022-04-18 19:18:09,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2022-04-18 19:18:09,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2022-04-18 19:18:09,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2022-04-18 19:18:09,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2022-04-18 19:18:09,706 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2022-04-18 19:18:09,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2022-04-18 19:18:09,707 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2022-04-18 19:18:09,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:18:09,708 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:18:09,709 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:18:09,710 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:18:09,745 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:18:09,756 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:18:09,756 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:18:09,756 INFO L341 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2022-04-18 19:18:09,758 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:18:09,758 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 235 transitions, 482 flow [2022-04-18 19:18:09,758 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 235 transitions, 482 flow [2022-04-18 19:18:09,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 235 transitions, 482 flow [2022-04-18 19:18:09,792 INFO L129 PetriNetUnfolder]: 13/259 cut-off events. [2022-04-18 19:18:09,793 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:18:09,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 259 events. 13/259 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 594 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 215. Up to 6 conditions per place. [2022-04-18 19:18:09,812 INFO L116 LiptonReduction]: Number of co-enabled transitions 26260 [2022-04-18 19:18:50,658 INFO L131 LiptonReduction]: Checked pairs total: 708944 [2022-04-18 19:18:50,658 INFO L133 LiptonReduction]: Total number of compositions: 420 [2022-04-18 19:18:50,659 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143 places, 142 transitions, 296 flow [2022-04-18 19:18:51,157 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26467 states, 25649 states have (on average 2.9438574603298373) internal successors, (75507), 26466 states have internal predecessors, (75507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 26467 states, 25649 states have (on average 2.9438574603298373) internal successors, (75507), 26466 states have internal predecessors, (75507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:18:51,209 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:51,209 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:18:51,210 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-04-18 19:18:51,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:51,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1259822618, now seen corresponding path program 1 times [2022-04-18 19:18:51,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:18:51,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743544969] [2022-04-18 19:18:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:51,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:18:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:18:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:18:51,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:18:51,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743544969] [2022-04-18 19:18:51,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743544969] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:18:51,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:18:51,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:18:51,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099147893] [2022-04-18 19:18:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:18:51,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:18:51,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:18:51,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:18:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:18:51,292 INFO L87 Difference]: Start difference. First operand has 26467 states, 25649 states have (on average 2.9438574603298373) internal successors, (75507), 26466 states have internal predecessors, (75507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:18:51,576 INFO L93 Difference]: Finished difference Result 15348 states and 42793 transitions. [2022-04-18 19:18:51,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:18:51,576 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 19:18:51,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:18:51,676 INFO L225 Difference]: With dead ends: 15348 [2022-04-18 19:18:51,676 INFO L226 Difference]: Without dead ends: 15348 [2022-04-18 19:18:51,676 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:18:51,678 INFO L913 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:18:51,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:18:51,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15348 states. [2022-04-18 19:18:52,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15348 to 15348. [2022-04-18 19:18:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15348 states, 15267 states have (on average 2.8029737341979435) internal successors, (42793), 15347 states have internal predecessors, (42793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15348 states to 15348 states and 42793 transitions. [2022-04-18 19:18:52,151 INFO L78 Accepts]: Start accepts. Automaton has 15348 states and 42793 transitions. Word has length 5 [2022-04-18 19:18:52,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:18:52,152 INFO L478 AbstractCegarLoop]: Abstraction has 15348 states and 42793 transitions. [2022-04-18 19:18:52,153 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:18:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 15348 states and 42793 transitions. [2022-04-18 19:18:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:18:52,156 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:52,156 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:18:52,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:18:52,158 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-04-18 19:18:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:52,158 INFO L85 PathProgramCache]: Analyzing trace with hash -770536994, now seen corresponding path program 1 times [2022-04-18 19:18:52,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:18:52,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135575358] [2022-04-18 19:18:52,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:52,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:18:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:18:52,188 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:18:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:18:52,202 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:18:52,202 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:18:52,202 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2022-04-18 19:18:52,203 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2022-04-18 19:18:52,203 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2022-04-18 19:18:52,203 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2022-04-18 19:18:52,203 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2022-04-18 19:18:52,203 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2022-04-18 19:18:52,203 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2022-04-18 19:18:52,204 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2022-04-18 19:18:52,204 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2022-04-18 19:18:52,204 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2022-04-18 19:18:52,204 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2022-04-18 19:18:52,204 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2022-04-18 19:18:52,205 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2022-04-18 19:18:52,205 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2022-04-18 19:18:52,205 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2022-04-18 19:18:52,205 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2022-04-18 19:18:52,205 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2022-04-18 19:18:52,205 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2022-04-18 19:18:52,206 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2022-04-18 19:18:52,206 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2022-04-18 19:18:52,206 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2022-04-18 19:18:52,206 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2022-04-18 19:18:52,206 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2022-04-18 19:18:52,206 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2022-04-18 19:18:52,207 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2022-04-18 19:18:52,207 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2022-04-18 19:18:52,207 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2022-04-18 19:18:52,207 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2022-04-18 19:18:52,207 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2022-04-18 19:18:52,207 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2022-04-18 19:18:52,208 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2022-04-18 19:18:52,208 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2022-04-18 19:18:52,208 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2022-04-18 19:18:52,208 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2022-04-18 19:18:52,208 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2022-04-18 19:18:52,208 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2022-04-18 19:18:52,209 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2022-04-18 19:18:52,209 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2022-04-18 19:18:52,209 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2022-04-18 19:18:52,209 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2022-04-18 19:18:52,209 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2022-04-18 19:18:52,209 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2022-04-18 19:18:52,210 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2022-04-18 19:18:52,210 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2022-04-18 19:18:52,210 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2022-04-18 19:18:52,210 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2022-04-18 19:18:52,210 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2022-04-18 19:18:52,211 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2022-04-18 19:18:52,211 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2022-04-18 19:18:52,211 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2022-04-18 19:18:52,211 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2022-04-18 19:18:52,211 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2022-04-18 19:18:52,211 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2022-04-18 19:18:52,212 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2022-04-18 19:18:52,212 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2022-04-18 19:18:52,212 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2022-04-18 19:18:52,212 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2022-04-18 19:18:52,212 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2022-04-18 19:18:52,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:18:52,213 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:18:52,213 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:18:52,213 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:18:52,328 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:18:52,329 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:18:52,330 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:18:52,330 INFO L341 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2022-04-18 19:18:52,333 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:18:52,333 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 337 transitions, 695 flow [2022-04-18 19:18:52,333 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 337 transitions, 695 flow [2022-04-18 19:18:52,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 328 places, 337 transitions, 695 flow [2022-04-18 19:18:52,389 INFO L129 PetriNetUnfolder]: 19/374 cut-off events. [2022-04-18 19:18:52,390 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:18:52,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 374 events. 19/374 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1213 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 316. Up to 8 conditions per place. [2022-04-18 19:18:52,422 INFO L116 LiptonReduction]: Number of co-enabled transitions 70296 [2022-04-18 19:20:47,580 INFO L131 LiptonReduction]: Checked pairs total: 2085265 [2022-04-18 19:20:47,581 INFO L133 LiptonReduction]: Total number of compositions: 576 [2022-04-18 19:20:47,583 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 213 places, 212 transitions, 445 flow