./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.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-nonblocking-cntr-alt.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 dfec19cb420bdcc992ee0af7789c6701a360457d4b79eebd70c54f4e314fbf3f --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 21:51:18,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:51:18,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:51:18,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:51:18,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:51:18,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:51:18,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:51:18,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:51:18,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:51:18,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:51:18,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:51:18,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:51:18,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:51:18,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:51:18,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:51:18,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:51:18,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:51:18,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:51:18,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:51:18,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:51:18,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:51:18,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:51:18,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:51:18,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:51:18,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:51:18,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:51:18,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:51:18,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:51:18,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:51:18,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:51:18,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:51:18,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:51:18,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:51:18,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:51:18,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:51:18,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:51:18,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:51:18,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:51:18,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:51:18,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:51:18,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:51:18,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:51:18,870 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:51:18,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:51:18,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:51:18,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:51:18,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:51:18,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:51:18,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:51:18,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:51:18,873 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:51:18,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:51:18,874 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:51:18,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:51:18,875 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:51:18,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:51:18,876 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:51:18,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:51:18,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:51:18,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:51:18,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:51:18,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:51:18,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:51:18,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:51:18,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:51:18,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:51:18,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:51:18,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:51:18,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:51:18,878 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:51:18,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:51:18,878 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:51:18,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfec19cb420bdcc992ee0af7789c6701a360457d4b79eebd70c54f4e314fbf3f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:51:19,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:51:19,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:51:19,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:51:19,155 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:51:19,155 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:51:19,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-08-31 21:51:20,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:51:20,302 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:51:20,303 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-08-31 21:51:20,307 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d1adab10/1b7ee52c67054c4bb644a191eae1c986/FLAG81eaa5ec1 [2023-08-31 21:51:20,319 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d1adab10/1b7ee52c67054c4bb644a191eae1c986 [2023-08-31 21:51:20,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:51:20,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:51:20,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:51:20,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:51:20,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:51:20,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f96daca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20, skipping insertion in model container [2023-08-31 21:51:20,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:51:20,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:51:20,432 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-nonblocking-cntr-alt.wvr.c[2098,2111] [2023-08-31 21:51:20,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:51:20,438 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:51:20,451 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-nonblocking-cntr-alt.wvr.c[2098,2111] [2023-08-31 21:51:20,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:51:20,455 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:51:20,456 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:51:20,460 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:51:20,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20 WrapperNode [2023-08-31 21:51:20,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:51:20,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:51:20,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:51:20,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:51:20,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,481 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2023-08-31 21:51:20,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:51:20,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:51:20,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:51:20,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:51:20,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,495 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:51:20,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:51:20,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:51:20,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:51:20,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (1/1) ... [2023-08-31 21:51:20,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:51:20,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:51:20,571 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 21:51:20,588 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 21:51:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:51:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:51:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:51:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 21:51:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:51:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:51:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:51:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:51:20,598 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 21:51:20,676 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:51:20,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:51:20,909 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:51:20,967 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:51:20,967 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-31 21:51:20,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:51:20 BoogieIcfgContainer [2023-08-31 21:51:20,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:51:20,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:51:20,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:51:20,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:51:20,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:51:20" (1/3) ... [2023-08-31 21:51:20,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a853fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:51:20, skipping insertion in model container [2023-08-31 21:51:20,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:20" (2/3) ... [2023-08-31 21:51:20,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a853fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:51:20, skipping insertion in model container [2023-08-31 21:51:20,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:51:20" (3/3) ... [2023-08-31 21:51:20,974 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2023-08-31 21:51:20,979 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:51:20,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:51:20,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-31 21:51:20,986 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:51:21,023 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:51:21,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 132 transitions, 280 flow [2023-08-31 21:51:21,090 INFO L130 PetriNetUnfolder]: 7/130 cut-off events. [2023-08-31 21:51:21,090 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:51:21,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 130 events. 7/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-31 21:51:21,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 132 transitions, 280 flow [2023-08-31 21:51:21,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 115 transitions, 242 flow [2023-08-31 21:51:21,099 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:51:21,105 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 115 transitions, 242 flow [2023-08-31 21:51:21,107 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 115 transitions, 242 flow [2023-08-31 21:51:21,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 115 transitions, 242 flow [2023-08-31 21:51:21,123 INFO L130 PetriNetUnfolder]: 6/115 cut-off events. [2023-08-31 21:51:21,123 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:51:21,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 115 events. 6/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-31 21:51:21,124 INFO L119 LiptonReduction]: Number of co-enabled transitions 1308 [2023-08-31 21:51:24,209 INFO L134 LiptonReduction]: Checked pairs total: 1607 [2023-08-31 21:51:24,210 INFO L136 LiptonReduction]: Total number of compositions: 136 [2023-08-31 21:51:24,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:51:24,251 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;@3f6cd1af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:51:24,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-31 21:51:24,253 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:51:24,253 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:51:24,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:24,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:51:24,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-31 21:51:24,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash 539, now seen corresponding path program 1 times [2023-08-31 21:51:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838026123] [2023-08-31 21:51:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:24,335 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 21:51:24,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838026123] [2023-08-31 21:51:24,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838026123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:24,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:24,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:51:24,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245391527] [2023-08-31 21:51:24,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:24,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:51:24,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:24,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:51:24,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:51:24,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 268 [2023-08-31 21:51:24,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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 21:51:24,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:24,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 268 [2023-08-31 21:51:24,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:24,411 INFO L130 PetriNetUnfolder]: 48/80 cut-off events. [2023-08-31 21:51:24,411 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 21:51:24,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 80 events. 48/80 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 194 event pairs, 19 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 129. Up to 78 conditions per place. [2023-08-31 21:51:24,413 INFO L137 encePairwiseOnDemand]: 252/268 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-31 21:51:24,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 64 flow [2023-08-31 21:51:24,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:51:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:51:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 260 transitions. [2023-08-31 21:51:24,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48507462686567165 [2023-08-31 21:51:24,423 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 260 transitions. [2023-08-31 21:51:24,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 260 transitions. [2023-08-31 21:51:24,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:24,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 260 transitions. [2023-08-31 21:51:24,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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 21:51:24,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 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 21:51:24,431 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 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 21:51:24,433 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 72 flow. Second operand 2 states and 260 transitions. [2023-08-31 21:51:24,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 64 flow [2023-08-31 21:51:24,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:51:24,435 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-08-31 21:51:24,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-08-31 21:51:24,439 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -19 predicate places. [2023-08-31 21:51:24,440 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-08-31 21:51:24,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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 21:51:24,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-08-31 21:51:24,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-31 21:51:24,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-31 21:51:24,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-31 21:51:24,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-31 21:51:24,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-31 21:51:24,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-08-31 21:51:24,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-31 21:51:24,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-31 21:51:24,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-31 21:51:24,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-31 21:51:24,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-31 21:51:24,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-31 21:51:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-31 21:51:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-08-31 21:51:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-08-31 21:51:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2023-08-31 21:51:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 25 remaining) [2023-08-31 21:51:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-31 21:51:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-31 21:51:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-31 21:51:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-31 21:51:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-31 21:51:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-31 21:51:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-31 21:51:24,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:51:24,447 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 21:51:24,451 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:51:24,451 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:51:24,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:51:24 BasicIcfg [2023-08-31 21:51:24,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:51:24,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:51:24,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:51:24,454 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:51:24,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:51:20" (3/4) ... [2023-08-31 21:51:24,456 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:51:24,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:51:24,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:51:24,463 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-31 21:51:24,463 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:51:24,463 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:51:24,463 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:51:24,488 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:51:24,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:51:24,489 INFO L158 Benchmark]: Toolchain (without parser) took 4167.25ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 88.7MB in the beginning and 98.4MB in the end (delta: -9.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-08-31 21:51:24,489 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:51:24,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.24ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 77.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:51:24,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.73ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:51:24,490 INFO L158 Benchmark]: Boogie Preprocessor took 15.45ms. Allocated memory is still 111.1MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:51:24,490 INFO L158 Benchmark]: RCFGBuilder took 471.40ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 84.8MB in the end (delta: -10.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-08-31 21:51:24,490 INFO L158 Benchmark]: TraceAbstraction took 3483.65ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 84.1MB in the beginning and 101.5MB in the end (delta: -17.4MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-08-31 21:51:24,490 INFO L158 Benchmark]: Witness Printer took 33.91ms. Allocated memory is still 138.4MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:51:24,492 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 65.0MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.24ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 77.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.73ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.45ms. Allocated memory is still 111.1MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 471.40ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 84.8MB in the end (delta: -10.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3483.65ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 84.1MB in the beginning and 101.5MB in the end (delta: -17.4MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 33.91ms. Allocated memory is still 138.4MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 116 PlacesBefore, 35 PlacesAfterwards, 115 TransitionsBefore, 30 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 9 FixpointIterations, 73 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 136 TotalNumberOfCompositions, 1607 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1593, independent: 1591, independent conditional: 0, independent unconditional: 1591, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 719, independent: 717, independent conditional: 0, independent unconditional: 717, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1593, independent: 874, independent conditional: 0, independent unconditional: 874, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 719, unknown conditional: 0, unknown unconditional: 719] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: 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: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: 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: 77]: 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, 154 locations, 25 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: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:51:24,523 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