./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-simple-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-simple-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 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 --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 21:51:58,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:51:58,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:51:58,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:51:58,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:51:58,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:51:58,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:51:58,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:51:58,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:51:58,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:51:58,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:51:58,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:51:58,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:51:58,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:51:58,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:51:58,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:51:58,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:51:58,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:51:58,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:51:58,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:51:58,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:51:58,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:51:58,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:51:58,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:51:58,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:51:58,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:51:58,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:51:58,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:51:58,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:51:58,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:51:58,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:51:58,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:51:58,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:51:58,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:51:58,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:51:58,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:51:58,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:51:58,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:51:58,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:51:58,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:51:58,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:51:58,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:51:58,894 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:51:58,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:51:58,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:51:58,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:51:58,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:51:58,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:51:58,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:51:58,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:51:58,896 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:51:58,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:51:58,897 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:51:58,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:51:58,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:51:58,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:51:58,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:51:58,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:51:58,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:51:58,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:51:58,898 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:51:58,898 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:51:58,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:51:58,899 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:51:58,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:51:58,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:51:58,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:51:58,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:51:58,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:51:58,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:51:58,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:51:58,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:51:58,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:51:58,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:51:58,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:51:58,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:51:58,901 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:51:58,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:51:58,901 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:51:58,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:51:59,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:51:59,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:51:59,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:51:59,138 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:51:59,138 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:51:59,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2023-08-31 21:52:00,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:52:00,399 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:52:00,400 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2023-08-31 21:52:00,404 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7375105/8a2c48be19be41a2b8da40f10fe8b2a3/FLAG80367acea [2023-08-31 21:52:00,417 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7375105/8a2c48be19be41a2b8da40f10fe8b2a3 [2023-08-31 21:52:00,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:52:00,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:52:00,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:52:00,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:52:00,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:52:00,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb7c02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00, skipping insertion in model container [2023-08-31 21:52:00,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:52:00,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:52:00,590 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-simple-queue.wvr.c[2438,2451] [2023-08-31 21:52:00,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:52:00,603 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:52:00,634 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-simple-queue.wvr.c[2438,2451] [2023-08-31 21:52:00,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:52:00,645 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:52:00,645 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:52:00,649 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:52:00,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00 WrapperNode [2023-08-31 21:52:00,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:52:00,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:52:00,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:52:00,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:52:00,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,695 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2023-08-31 21:52:00,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:52:00,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:52:00,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:52:00,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:52:00,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:52:00,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:52:00,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:52:00,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:52:00,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (1/1) ... [2023-08-31 21:52:00,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:52:00,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:52:00,762 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 21:52:00,764 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 21:52:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:52:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:52:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:52:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 21:52:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:52:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:52:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:52:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:52:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:52:00,801 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 21:52:00,892 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:52:00,893 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:52:01,207 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:52:01,459 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:52:01,459 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-31 21:52:01,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:52:01 BoogieIcfgContainer [2023-08-31 21:52:01,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:52:01,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:52:01,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:52:01,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:52:01,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:52:00" (1/3) ... [2023-08-31 21:52:01,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2915af2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:52:01, skipping insertion in model container [2023-08-31 21:52:01,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:00" (2/3) ... [2023-08-31 21:52:01,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2915af2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:52:01, skipping insertion in model container [2023-08-31 21:52:01,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:52:01" (3/3) ... [2023-08-31 21:52:01,468 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2023-08-31 21:52:01,473 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:52:01,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:52:01,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-08-31 21:52:01,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:52:01,549 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:52:01,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 186 transitions, 388 flow [2023-08-31 21:52:01,638 INFO L130 PetriNetUnfolder]: 9/184 cut-off events. [2023-08-31 21:52:01,638 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:52:01,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 184 events. 9/184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 202 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-08-31 21:52:01,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 186 transitions, 388 flow [2023-08-31 21:52:01,646 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 169 transitions, 350 flow [2023-08-31 21:52:01,648 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:52:01,654 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 169 transitions, 350 flow [2023-08-31 21:52:01,656 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 169 transitions, 350 flow [2023-08-31 21:52:01,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 169 transitions, 350 flow [2023-08-31 21:52:01,675 INFO L130 PetriNetUnfolder]: 8/169 cut-off events. [2023-08-31 21:52:01,675 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:52:01,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 8/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 202 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-08-31 21:52:01,677 INFO L119 LiptonReduction]: Number of co-enabled transitions 1910 [2023-08-31 21:52:06,319 INFO L134 LiptonReduction]: Checked pairs total: 6116 [2023-08-31 21:52:06,319 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-08-31 21:52:06,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:52:06,341 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;@6ca1d57e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:52:06,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2023-08-31 21:52:06,343 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:52:06,344 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:52:06,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:06,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:52:06,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-08-31 21:52:06,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:06,349 INFO L85 PathProgramCache]: Analyzing trace with hash 908, now seen corresponding path program 1 times [2023-08-31 21:52:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:06,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989903948] [2023-08-31 21:52:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:06,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:06,438 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 21:52:06,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:06,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989903948] [2023-08-31 21:52:06,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989903948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:06,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:06,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:52:06,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741090673] [2023-08-31 21:52:06,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:06,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:52:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:06,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:52:06,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:52:06,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 367 [2023-08-31 21:52:06,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 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 21:52:06,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:06,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 367 [2023-08-31 21:52:06,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:06,550 INFO L130 PetriNetUnfolder]: 22/61 cut-off events. [2023-08-31 21:52:06,551 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-31 21:52:06,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 61 events. 22/61 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 9 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 70. Up to 42 conditions per place. [2023-08-31 21:52:06,553 INFO L137 encePairwiseOnDemand]: 339/367 looper letters, 13 selfloop transitions, 0 changer transitions 1/24 dead transitions. [2023-08-31 21:52:06,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 24 transitions, 88 flow [2023-08-31 21:52:06,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:52:06,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:52:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 350 transitions. [2023-08-31 21:52:06,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4768392370572207 [2023-08-31 21:52:06,570 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 350 transitions. [2023-08-31 21:52:06,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 350 transitions. [2023-08-31 21:52:06,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:06,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 350 transitions. [2023-08-31 21:52:06,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 175.0) internal successors, (350), 2 states have internal predecessors, (350), 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 21:52:06,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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 21:52:06,582 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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 21:52:06,583 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 116 flow. Second operand 2 states and 350 transitions. [2023-08-31 21:52:06,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 24 transitions, 88 flow [2023-08-31 21:52:06,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:52:06,588 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 49 flow [2023-08-31 21:52:06,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=49, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-08-31 21:52:06,593 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -31 predicate places. [2023-08-31 21:52:06,594 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 49 flow [2023-08-31 21:52:06,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 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 21:52:06,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:06,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:06,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:52:06,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-08-31 21:52:06,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:06,605 INFO L85 PathProgramCache]: Analyzing trace with hash -821588702, now seen corresponding path program 1 times [2023-08-31 21:52:06,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:06,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748544605] [2023-08-31 21:52:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:06,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:07,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:07,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748544605] [2023-08-31 21:52:07,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748544605] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:07,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:07,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:52:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399005050] [2023-08-31 21:52:07,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:07,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:52:07,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:52:07,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:52:07,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 367 [2023-08-31 21:52:07,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 49 flow. Second operand has 6 states, 6 states have (on average 142.66666666666666) internal successors, (856), 6 states have internal predecessors, (856), 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 21:52:07,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:07,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 367 [2023-08-31 21:52:07,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:07,379 INFO L130 PetriNetUnfolder]: 54/98 cut-off events. [2023-08-31 21:52:07,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:52:07,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 98 events. 54/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 144 event pairs, 3 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 189. Up to 32 conditions per place. [2023-08-31 21:52:07,382 INFO L137 encePairwiseOnDemand]: 362/367 looper letters, 29 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2023-08-31 21:52:07,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 38 transitions, 145 flow [2023-08-31 21:52:07,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:52:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:52:07,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2023-08-31 21:52:07,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3996366939146231 [2023-08-31 21:52:07,386 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 880 transitions. [2023-08-31 21:52:07,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 880 transitions. [2023-08-31 21:52:07,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:07,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 880 transitions. [2023-08-31 21:52:07,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.66666666666666) internal successors, (880), 6 states have internal predecessors, (880), 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 21:52:07,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 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 21:52:07,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 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 21:52:07,396 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 49 flow. Second operand 6 states and 880 transitions. [2023-08-31 21:52:07,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 38 transitions, 145 flow [2023-08-31 21:52:07,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 145 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:07,397 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 55 flow [2023-08-31 21:52:07,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=55, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-08-31 21:52:07,398 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -28 predicate places. [2023-08-31 21:52:07,398 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 55 flow [2023-08-31 21:52:07,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.66666666666666) internal successors, (856), 6 states have internal predecessors, (856), 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 21:52:07,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:07,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:07,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:52:07,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-08-31 21:52:07,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:07,400 INFO L85 PathProgramCache]: Analyzing trace with hash -868554088, now seen corresponding path program 1 times [2023-08-31 21:52:07,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:07,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581494611] [2023-08-31 21:52:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:07,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:07,599 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 21:52:07,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:07,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581494611] [2023-08-31 21:52:07,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581494611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:07,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:07,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:52:07,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898752100] [2023-08-31 21:52:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:07,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:52:07,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:52:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:52:07,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 367 [2023-08-31 21:52:07,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 55 flow. Second operand has 6 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 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 21:52:07,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:07,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 367 [2023-08-31 21:52:07,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:07,766 INFO L130 PetriNetUnfolder]: 30/72 cut-off events. [2023-08-31 21:52:07,766 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-31 21:52:07,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 72 events. 30/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 8 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 147. Up to 37 conditions per place. [2023-08-31 21:52:07,767 INFO L137 encePairwiseOnDemand]: 362/367 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-08-31 21:52:07,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 119 flow [2023-08-31 21:52:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:52:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:52:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 872 transitions. [2023-08-31 21:52:07,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3960036330608538 [2023-08-31 21:52:07,769 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 872 transitions. [2023-08-31 21:52:07,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 872 transitions. [2023-08-31 21:52:07,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:07,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 872 transitions. [2023-08-31 21:52:07,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 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 21:52:07,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 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 21:52:07,775 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 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 21:52:07,775 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 55 flow. Second operand 6 states and 872 transitions. [2023-08-31 21:52:07,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 119 flow [2023-08-31 21:52:07,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:52:07,776 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-31 21:52:07,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-31 21:52:07,776 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -28 predicate places. [2023-08-31 21:52:07,777 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-31 21:52:07,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 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 21:52:07,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (50 of 51 remaining) [2023-08-31 21:52:07,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2023-08-31 21:52:07,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2023-08-31 21:52:07,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2023-08-31 21:52:07,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2023-08-31 21:52:07,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2023-08-31 21:52:07,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2023-08-31 21:52:07,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2023-08-31 21:52:07,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2023-08-31 21:52:07,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2023-08-31 21:52:07,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2023-08-31 21:52:07,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2023-08-31 21:52:07,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2023-08-31 21:52:07,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2023-08-31 21:52:07,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2023-08-31 21:52:07,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2023-08-31 21:52:07,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2023-08-31 21:52:07,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2023-08-31 21:52:07,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 51 remaining) [2023-08-31 21:52:07,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 51 remaining) [2023-08-31 21:52:07,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2023-08-31 21:52:07,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2023-08-31 21:52:07,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2023-08-31 21:52:07,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2023-08-31 21:52:07,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2023-08-31 21:52:07,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2023-08-31 21:52:07,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2023-08-31 21:52:07,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2023-08-31 21:52:07,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2023-08-31 21:52:07,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2023-08-31 21:52:07,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2023-08-31 21:52:07,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2023-08-31 21:52:07,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2023-08-31 21:52:07,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:52:07,788 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-31 21:52:07,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:52:07,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:52:07,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:52:07 BasicIcfg [2023-08-31 21:52:07,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:52:07,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:52:07,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:52:07,795 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:52:07,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:52:01" (3/4) ... [2023-08-31 21:52:07,797 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:52:07,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:52:07,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:52:07,804 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 21:52:07,805 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:52:07,805 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:52:07,805 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:52:07,833 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:52:07,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:52:07,833 INFO L158 Benchmark]: Toolchain (without parser) took 7414.21ms. Allocated memory was 65.0MB in the beginning and 161.5MB in the end (delta: 96.5MB). Free memory was 26.3MB in the beginning and 72.6MB in the end (delta: -46.3MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,834 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:52:07,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.02ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 26.1MB in the beginning and 61.5MB in the end (delta: -35.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.84ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 58.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,834 INFO L158 Benchmark]: Boogie Preprocessor took 43.41ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,835 INFO L158 Benchmark]: RCFGBuilder took 722.02ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 53.0MB in the end (delta: 3.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,835 INFO L158 Benchmark]: TraceAbstraction took 6331.99ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 52.4MB in the beginning and 75.7MB in the end (delta: -23.3MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,835 INFO L158 Benchmark]: Witness Printer took 37.83ms. Allocated memory is still 161.5MB. Free memory was 75.7MB in the beginning and 72.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:52:07,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.02ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 26.1MB in the beginning and 61.5MB in the end (delta: -35.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.84ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 58.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.41ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 722.02ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 53.0MB in the end (delta: 3.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6331.99ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 52.4MB in the beginning and 75.7MB in the end (delta: -23.3MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. * Witness Printer took 37.83ms. Allocated memory is still 161.5MB. Free memory was 75.7MB in the beginning and 72.6MB in the end (delta: 3.1MB). 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: 4.7s, 168 PlacesBefore, 56 PlacesAfterwards, 169 TransitionsBefore, 52 TransitionsAfterwards, 1910 CoEnabledTransitionPairs, 8 FixpointIterations, 113 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 7 ConcurrentYvCompositions, 5 ChoiceCompositions, 181 TotalNumberOfCompositions, 6116 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3053, independent: 2853, independent conditional: 0, independent unconditional: 2853, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 884, independent: 852, independent conditional: 0, independent unconditional: 852, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3053, independent: 2001, independent conditional: 0, independent unconditional: 2001, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 884, unknown conditional: 0, unknown unconditional: 884] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: 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: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: 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: 62]: 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: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: 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: 85]: 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, 215 locations, 51 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: 6.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 335 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 0 mSDtfsCounter, 335 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0.6s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:52:07,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE