./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.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/popl20-bad-counter-queue.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 c642b478618f67be61772197bb614a61e988cb880f57faee5dd0470714f61e7e --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 21:47:40,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:47:40,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:47:40,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:47:40,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:47:40,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:47:40,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:47:40,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:47:40,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:47:40,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:47:40,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:47:40,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:47:40,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:47:40,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:47:40,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:47:40,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:47:40,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:47:40,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:47:40,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:47:40,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:47:40,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:47:40,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:47:40,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:47:40,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:47:40,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:47:40,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:47:40,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:47:40,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:47:40,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:47:40,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:47:40,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:47:40,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:47:40,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:47:40,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:47:40,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:47:40,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:47:40,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:47:40,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:47:40,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:47:40,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:47:40,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:47:40,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:47:40,625 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:47:40,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:47:40,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:47:40,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:47:40,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:47:40,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:47:40,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:47:40,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:47:40,629 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:47:40,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:47:40,630 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:47:40,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:47:40,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:47:40,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:47:40,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:47:40,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:47:40,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:47:40,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:47:40,631 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:47:40,631 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:47:40,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:47:40,632 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:47:40,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:47:40,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:47:40,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:47:40,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:47:40,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:47:40,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:47:40,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:47:40,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:47:40,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:47:40,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:47:40,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:47:40,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:47:40,635 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:47:40,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:47:40,635 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:47:40,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c642b478618f67be61772197bb614a61e988cb880f57faee5dd0470714f61e7e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:47:40,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:47:40,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:47:40,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:47:40,956 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:47:40,957 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:47:40,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2023-08-31 21:47:42,062 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:47:42,291 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:47:42,292 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2023-08-31 21:47:42,297 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b61a2e79b/bd85c9c391ae455380a3fc9567405d12/FLAG4d626e352 [2023-08-31 21:47:42,307 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b61a2e79b/bd85c9c391ae455380a3fc9567405d12 [2023-08-31 21:47:42,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:47:42,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:47:42,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:47:42,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:47:42,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:47:42,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0cc174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42, skipping insertion in model container [2023-08-31 21:47:42,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:47:42,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:47:42,469 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/popl20-bad-counter-queue.wvr.c[2428,2441] [2023-08-31 21:47:42,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:47:42,484 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:47:42,504 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/popl20-bad-counter-queue.wvr.c[2428,2441] [2023-08-31 21:47:42,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:47:42,516 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:47:42,520 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:47:42,525 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:47:42,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42 WrapperNode [2023-08-31 21:47:42,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:47:42,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:47:42,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:47:42,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:47:42,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,590 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 205 [2023-08-31 21:47:42,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:47:42,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:47:42,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:47:42,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:47:42,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:47:42,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:47:42,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:47:42,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:47:42,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (1/1) ... [2023-08-31 21:47:42,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:47:42,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:47:42,695 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 21:47:42,724 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 21:47:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:47:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:47:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:47:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:47:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:47:42,738 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:47:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:47:42,738 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:47:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:47:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 21:47:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 21:47:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:47:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:47:42,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:47:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:47:42,740 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 21:47:42,901 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:47:42,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:47:43,306 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:47:43,435 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:47:43,435 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-31 21:47:43,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:43 BoogieIcfgContainer [2023-08-31 21:47:43,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:47:43,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:47:43,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:47:43,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:47:43,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:47:42" (1/3) ... [2023-08-31 21:47:43,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b68ebeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:47:43, skipping insertion in model container [2023-08-31 21:47:43,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:42" (2/3) ... [2023-08-31 21:47:43,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b68ebeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:47:43, skipping insertion in model container [2023-08-31 21:47:43,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:43" (3/3) ... [2023-08-31 21:47:43,444 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2023-08-31 21:47:43,451 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:47:43,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:47:43,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-31 21:47:43,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:47:43,527 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:47:43,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 334 flow [2023-08-31 21:47:43,655 INFO L130 PetriNetUnfolder]: 9/157 cut-off events. [2023-08-31 21:47:43,655 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:47:43,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 9/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-08-31 21:47:43,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 159 transitions, 334 flow [2023-08-31 21:47:43,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 142 transitions, 296 flow [2023-08-31 21:47:43,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:47:43,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 142 transitions, 296 flow [2023-08-31 21:47:43,691 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 142 transitions, 296 flow [2023-08-31 21:47:43,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 142 transitions, 296 flow [2023-08-31 21:47:43,737 INFO L130 PetriNetUnfolder]: 8/142 cut-off events. [2023-08-31 21:47:43,738 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:47:43,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 142 events. 8/142 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-08-31 21:47:43,743 INFO L119 LiptonReduction]: Number of co-enabled transitions 1836 [2023-08-31 21:47:48,070 INFO L134 LiptonReduction]: Checked pairs total: 12232 [2023-08-31 21:47:48,071 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-08-31 21:47:48,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:47:48,088 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;@4d77005, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:47:48,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-08-31 21:47:48,089 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:47:48,089 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:47:48,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:48,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:47:48,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:48,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:48,093 INFO L85 PathProgramCache]: Analyzing trace with hash 719, now seen corresponding path program 1 times [2023-08-31 21:47:48,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:48,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116462347] [2023-08-31 21:47:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:48,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:48,172 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 21:47:48,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:48,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116462347] [2023-08-31 21:47:48,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116462347] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:48,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:48,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:47:48,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743120397] [2023-08-31 21:47:48,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:48,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:47:48,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:48,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:47:48,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:47:48,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 283 [2023-08-31 21:47:48,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 110 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 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 21:47:48,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:48,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 283 [2023-08-31 21:47:48,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:48,279 INFO L130 PetriNetUnfolder]: 75/242 cut-off events. [2023-08-31 21:47:48,279 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-31 21:47:48,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 242 events. 75/242 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1184 event pairs, 38 based on Foata normal form. 36/231 useless extension candidates. Maximal degree in co-relation 303. Up to 123 conditions per place. [2023-08-31 21:47:48,282 INFO L137 encePairwiseOnDemand]: 268/283 looper letters, 15 selfloop transitions, 0 changer transitions 1/34 dead transitions. [2023-08-31 21:47:48,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 34 transitions, 112 flow [2023-08-31 21:47:48,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:47:48,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:47:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 303 transitions. [2023-08-31 21:47:48,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5353356890459364 [2023-08-31 21:47:48,295 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 303 transitions. [2023-08-31 21:47:48,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 303 transitions. [2023-08-31 21:47:48,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:48,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 303 transitions. [2023-08-31 21:47:48,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.5) internal successors, (303), 2 states have internal predecessors, (303), 0 states have call successors, (0), 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 21:47:48,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 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 21:47:48,305 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 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 21:47:48,306 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 110 flow. Second operand 2 states and 303 transitions. [2023-08-31 21:47:48,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 34 transitions, 112 flow [2023-08-31 21:47:48,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 104 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:47:48,310 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 69 flow [2023-08-31 21:47:48,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=69, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2023-08-31 21:47:48,315 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-31 21:47:48,315 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 69 flow [2023-08-31 21:47:48,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 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 21:47:48,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:48,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:47:48,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:47:48,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:48,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:48,317 INFO L85 PathProgramCache]: Analyzing trace with hash -131564047, now seen corresponding path program 1 times [2023-08-31 21:47:48,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:48,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86814823] [2023-08-31 21:47:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:48,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:48,396 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 21:47:48,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:48,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86814823] [2023-08-31 21:47:48,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86814823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:48,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:48,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:47:48,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949853055] [2023-08-31 21:47:48,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:48,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:47:48,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:47:48,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:47:48,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 283 [2023-08-31 21:47:48,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 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 21:47:48,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:48,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 283 [2023-08-31 21:47:48,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:48,483 INFO L130 PetriNetUnfolder]: 128/296 cut-off events. [2023-08-31 21:47:48,484 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 21:47:48,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 296 events. 128/296 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1198 event pairs, 99 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 526. Up to 223 conditions per place. [2023-08-31 21:47:48,486 INFO L137 encePairwiseOnDemand]: 280/283 looper letters, 18 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-08-31 21:47:48,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 103 flow [2023-08-31 21:47:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:47:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:47:48,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2023-08-31 21:47:48,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46996466431095407 [2023-08-31 21:47:48,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2023-08-31 21:47:48,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2023-08-31 21:47:48,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:48,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2023-08-31 21:47:48,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 21:47:48,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:48,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:48,494 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 69 flow. Second operand 3 states and 399 transitions. [2023-08-31 21:47:48,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 103 flow [2023-08-31 21:47:48,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 103 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:47:48,495 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 67 flow [2023-08-31 21:47:48,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2023-08-31 21:47:48,496 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -17 predicate places. [2023-08-31 21:47:48,496 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 67 flow [2023-08-31 21:47:48,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 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 21:47:48,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:48,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:47:48,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:47:48,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:48,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1715966205, now seen corresponding path program 1 times [2023-08-31 21:47:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:48,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744636527] [2023-08-31 21:47:48,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:48,999 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 21:47:49,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:49,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744636527] [2023-08-31 21:47:49,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744636527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:49,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:49,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:47:49,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627732802] [2023-08-31 21:47:49,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:49,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:47:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:47:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:47:49,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 283 [2023-08-31 21:47:49,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 67 flow. Second operand has 6 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 0 states have call successors, (0), 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 21:47:49,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:49,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 283 [2023-08-31 21:47:49,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:49,273 INFO L130 PetriNetUnfolder]: 235/403 cut-off events. [2023-08-31 21:47:49,274 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:47:49,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 403 events. 235/403 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1696 event pairs, 11 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 754. Up to 130 conditions per place. [2023-08-31 21:47:49,278 INFO L137 encePairwiseOnDemand]: 278/283 looper letters, 39 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2023-08-31 21:47:49,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 199 flow [2023-08-31 21:47:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:47:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:47:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 782 transitions. [2023-08-31 21:47:49,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46054181389870436 [2023-08-31 21:47:49,281 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 782 transitions. [2023-08-31 21:47:49,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 782 transitions. [2023-08-31 21:47:49,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:49,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 782 transitions. [2023-08-31 21:47:49,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 0 states have call successors, (0), 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 21:47:49,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:47:49,288 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:47:49,288 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 67 flow. Second operand 6 states and 782 transitions. [2023-08-31 21:47:49,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 199 flow [2023-08-31 21:47:49,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:47:49,290 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 72 flow [2023-08-31 21:47:49,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=72, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-31 21:47:49,291 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-31 21:47:49,294 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 72 flow [2023-08-31 21:47:49,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 0 states have call successors, (0), 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 21:47:49,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:49,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:47:49,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:47:49,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:49,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash 464796212, now seen corresponding path program 1 times [2023-08-31 21:47:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531767697] [2023-08-31 21:47:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:49,593 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 21:47:49,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:49,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531767697] [2023-08-31 21:47:49,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531767697] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:49,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:49,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:47:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099151007] [2023-08-31 21:47:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:49,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:47:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:49,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:47:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:47:49,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 283 [2023-08-31 21:47:49,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 72 flow. Second operand has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 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 21:47:49,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:49,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 283 [2023-08-31 21:47:49,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:49,822 INFO L130 PetriNetUnfolder]: 95/231 cut-off events. [2023-08-31 21:47:49,823 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-31 21:47:49,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 231 events. 95/231 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1009 event pairs, 35 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 434. Up to 113 conditions per place. [2023-08-31 21:47:49,823 INFO L137 encePairwiseOnDemand]: 278/283 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-08-31 21:47:49,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 156 flow [2023-08-31 21:47:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:47:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:47:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 770 transitions. [2023-08-31 21:47:49,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4534746760895171 [2023-08-31 21:47:49,829 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 770 transitions. [2023-08-31 21:47:49,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 770 transitions. [2023-08-31 21:47:49,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:49,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 770 transitions. [2023-08-31 21:47:49,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.33333333333334) internal successors, (770), 6 states have internal predecessors, (770), 0 states have call successors, (0), 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 21:47:49,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:47:49,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:47:49,835 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 72 flow. Second operand 6 states and 770 transitions. [2023-08-31 21:47:49,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 156 flow [2023-08-31 21:47:49,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 149 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:47:49,837 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-31 21:47:49,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-08-31 21:47:49,839 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-31 21:47:49,839 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-31 21:47:49,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 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 21:47:49,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-08-31 21:47:49,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-08-31 21:47:49,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-08-31 21:47:49,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-08-31 21:47:49,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-08-31 21:47:49,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-08-31 21:47:49,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-08-31 21:47:49,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-08-31 21:47:49,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-08-31 21:47:49,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-08-31 21:47:49,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-08-31 21:47:49,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-08-31 21:47:49,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-08-31 21:47:49,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-08-31 21:47:49,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-08-31 21:47:49,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-08-31 21:47:49,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-08-31 21:47:49,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2023-08-31 21:47:49,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2023-08-31 21:47:49,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-08-31 21:47:49,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-08-31 21:47:49,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-08-31 21:47:49,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-08-31 21:47:49,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-08-31 21:47:49,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-08-31 21:47:49,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-08-31 21:47:49,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-08-31 21:47:49,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-08-31 21:47:49,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-08-31 21:47:49,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:47:49,853 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 21:47:49,858 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:47:49,858 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:47:49,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:47:49 BasicIcfg [2023-08-31 21:47:49,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:47:49,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:47:49,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:47:49,863 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:47:49,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:43" (3/4) ... [2023-08-31 21:47:49,866 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:47:49,870 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:47:49,870 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:47:49,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 21:47:49,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:47:49,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:47:49,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:47:49,919 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:47:49,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:47:49,919 INFO L158 Benchmark]: Toolchain (without parser) took 7609.38ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 45.1MB in the beginning and 40.4MB in the end (delta: 4.7MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,920 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:47:49,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.27ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 32.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.65ms. Allocated memory is still 67.1MB. Free memory was 32.3MB in the beginning and 47.3MB in the end (delta: -15.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,920 INFO L158 Benchmark]: Boogie Preprocessor took 65.42ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,921 INFO L158 Benchmark]: RCFGBuilder took 772.60ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 44.1MB in the end (delta: 1.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,921 INFO L158 Benchmark]: TraceAbstraction took 6423.62ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 43.5MB in the beginning and 43.7MB in the end (delta: -192.8kB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,921 INFO L158 Benchmark]: Witness Printer took 55.79ms. Allocated memory is still 100.7MB. Free memory was 43.7MB in the beginning and 40.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:47:49,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.27ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 32.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.65ms. Allocated memory is still 67.1MB. Free memory was 32.3MB in the beginning and 47.3MB in the end (delta: -15.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.42ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.60ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 44.1MB in the end (delta: 1.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6423.62ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 43.5MB in the beginning and 43.7MB in the end (delta: -192.8kB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Witness Printer took 55.79ms. Allocated memory is still 100.7MB. Free memory was 43.7MB in the beginning and 40.4MB in the end (delta: 3.3MB). 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: 4.4s, 141 PlacesBefore, 51 PlacesAfterwards, 142 TransitionsBefore, 49 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 8 FixpointIterations, 82 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 124 TotalNumberOfCompositions, 12232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5186, independent: 4685, independent conditional: 0, independent unconditional: 4685, dependent: 501, dependent conditional: 0, dependent unconditional: 501, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 980, independent: 928, independent conditional: 0, independent unconditional: 928, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5186, independent: 3757, independent conditional: 0, independent unconditional: 3757, dependent: 449, dependent conditional: 0, dependent unconditional: 449, unknown: 980, unknown conditional: 0, unknown unconditional: 980] , Statistics on independence cache: Total cache size (in pairs): 290, Positive cache size: 260, Positive conditional cache size: 0, Positive unconditional cache size: 260, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: 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: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: 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: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: 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: 86]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 187 locations, 29 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: 6.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 3 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:47:49,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE