./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/pthread-lit/qw2004-2.i -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 a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:00:45,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:00:45,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:00:45,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:00:45,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:00:45,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:00:45,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:00:45,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:00:45,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:00:45,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:00:45,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:00:45,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:00:45,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:00:45,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:00:45,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:00:45,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:00:45,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:00:45,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:00:45,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:00:45,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:00:45,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:00:45,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:00:45,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:00:45,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:00:45,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:00:45,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:00:45,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:00:45,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:00:45,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:00:45,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:00:45,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:00:45,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:00:45,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:00:45,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:00:45,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:00:45,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:00:45,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:00:45,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:00:45,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:00:45,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:00:45,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:00:45,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:00:45,903 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:00:45,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:00:45,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:00:45,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:00:45,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:00:45,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:00:45,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:00:45,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:00:45,906 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:00:45,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:00:45,907 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:00:45,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:00:45,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:00:45,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:00:45,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:00:45,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:00:45,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:00:45,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:00:45,909 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:00:45,909 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:00:45,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:00:45,910 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:00:45,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:00:45,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:00:45,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:00:45,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:00:45,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:00:45,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:00:45,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:00:45,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:00:45,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:00:45,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:00:45,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:00:45,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:00:45,912 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:00:45,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:00:45,913 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:00:45,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:00:46,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:00:46,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:00:46,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:00:46,228 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:00:46,229 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:00:46,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2023-08-29 01:00:47,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:00:47,690 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:00:47,691 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2023-08-29 01:00:47,700 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55bcb057/6e7ffd20ab8246fba4cd79da55a67069/FLAG7f061c55c [2023-08-29 01:00:47,716 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55bcb057/6e7ffd20ab8246fba4cd79da55a67069 [2023-08-29 01:00:47,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:00:47,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:00:47,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:00:47,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:00:47,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:00:47,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:00:47" (1/1) ... [2023-08-29 01:00:47,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2fc387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:47, skipping insertion in model container [2023-08-29 01:00:47,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:00:47" (1/1) ... [2023-08-29 01:00:47,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:00:47,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:00:48,040 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i[30003,30016] [2023-08-29 01:00:48,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:00:48,073 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:00:48,111 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i[30003,30016] [2023-08-29 01:00:48,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:00:48,169 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:00:48,169 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:00:48,175 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:00:48,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48 WrapperNode [2023-08-29 01:00:48,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:00:48,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:00:48,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:00:48,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:00:48,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,220 INFO L138 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2023-08-29 01:00:48,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:00:48,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:00:48,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:00:48,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:00:48,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,240 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:00:48,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:00:48,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:00:48,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:00:48,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (1/1) ... [2023-08-29 01:00:48,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:00:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:00:48,277 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) [2023-08-29 01:00:48,296 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 [2023-08-29 01:00:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-08-29 01:00:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-08-29 01:00:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:00:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 01:00:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:00:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:00:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:00:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:00:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 01:00:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:00:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:00:48,317 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:00:48,428 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:00:48,429 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:00:48,698 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:00:48,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:00:48,821 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:00:48,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:00:48 BoogieIcfgContainer [2023-08-29 01:00:48,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:00:48,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:00:48,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:00:48,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:00:48,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:00:47" (1/3) ... [2023-08-29 01:00:48,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa8d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:00:48, skipping insertion in model container [2023-08-29 01:00:48,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:00:48" (2/3) ... [2023-08-29 01:00:48,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa8d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:00:48, skipping insertion in model container [2023-08-29 01:00:48,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:00:48" (3/3) ... [2023-08-29 01:00:48,832 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2023-08-29 01:00:48,838 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:00:48,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:00:48,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-29 01:00:48,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:00:48,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 01:00:48,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 141 transitions, 287 flow [2023-08-29 01:00:48,971 INFO L130 PetriNetUnfolder]: 6/140 cut-off events. [2023-08-29 01:00:48,975 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:00:48,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 140 events. 6/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 191 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-08-29 01:00:48,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 141 transitions, 287 flow [2023-08-29 01:00:48,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 140 transitions, 283 flow [2023-08-29 01:00:48,993 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:00:49,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 140 transitions, 283 flow [2023-08-29 01:00:49,003 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 140 transitions, 283 flow [2023-08-29 01:00:49,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 140 transitions, 283 flow [2023-08-29 01:00:49,031 INFO L130 PetriNetUnfolder]: 6/140 cut-off events. [2023-08-29 01:00:49,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:00:49,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 140 events. 6/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-08-29 01:00:49,035 INFO L119 LiptonReduction]: Number of co-enabled transitions 4514 [2023-08-29 01:00:51,701 INFO L134 LiptonReduction]: Checked pairs total: 8733 [2023-08-29 01:00:51,701 INFO L136 LiptonReduction]: Total number of compositions: 156 [2023-08-29 01:00:51,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:00:51,720 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;@23357127, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:00:51,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-08-29 01:00:51,721 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 01:00:51,721 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:00:51,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:51,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 01:00:51,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:51,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:51,727 INFO L85 PathProgramCache]: Analyzing trace with hash 636, now seen corresponding path program 1 times [2023-08-29 01:00:51,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:51,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283752928] [2023-08-29 01:00:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:51,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:00:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:00:51,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:00:51,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283752928] [2023-08-29 01:00:51,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283752928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:00:51,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:00:51,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 01:00:51,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458739086] [2023-08-29 01:00:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:00:51,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 01:00:51,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:00:51,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 01:00:51,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 01:00:51,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 297 [2023-08-29 01:00:51,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 87 flow. Second operand has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 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) [2023-08-29 01:00:51,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:00:51,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 297 [2023-08-29 01:00:51,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:00:51,995 INFO L130 PetriNetUnfolder]: 91/176 cut-off events. [2023-08-29 01:00:51,995 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:00:51,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 176 events. 91/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 563 event pairs, 56 based on Foata normal form. 8/137 useless extension candidates. Maximal degree in co-relation 336. Up to 165 conditions per place. [2023-08-29 01:00:52,000 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 21 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-29 01:00:52,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 93 flow [2023-08-29 01:00:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 01:00:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 01:00:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 269 transitions. [2023-08-29 01:00:52,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45286195286195285 [2023-08-29 01:00:52,021 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 269 transitions. [2023-08-29 01:00:52,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 269 transitions. [2023-08-29 01:00:52,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:00:52,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 269 transitions. [2023-08-29 01:00:52,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 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) [2023-08-29 01:00:52,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:00:52,034 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:00:52,036 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 87 flow. Second operand 2 states and 269 transitions. [2023-08-29 01:00:52,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 93 flow [2023-08-29 01:00:52,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:00:52,043 INFO L231 Difference]: Finished difference. Result has 24 places, 24 transitions, 50 flow [2023-08-29 01:00:52,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=50, PETRI_PLACES=24, PETRI_TRANSITIONS=24} [2023-08-29 01:00:52,048 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -17 predicate places. [2023-08-29 01:00:52,049 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 24 transitions, 50 flow [2023-08-29 01:00:52,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 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) [2023-08-29 01:00:52,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:52,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:00:52,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:00:52,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:52,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash 604251925, now seen corresponding path program 1 times [2023-08-29 01:00:52,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:52,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668446741] [2023-08-29 01:00:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:52,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:00:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:00:52,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:00:52,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668446741] [2023-08-29 01:00:52,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668446741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:00:52,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:00:52,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:00:52,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254105962] [2023-08-29 01:00:52,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:00:52,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:00:52,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:00:52,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:00:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:00:52,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 297 [2023-08-29 01:00:52,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2023-08-29 01:00:52,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:00:52,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 297 [2023-08-29 01:00:52,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:00:52,326 INFO L130 PetriNetUnfolder]: 154/315 cut-off events. [2023-08-29 01:00:52,326 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:00:52,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 315 events. 154/315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1395 event pairs, 35 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 600. Up to 145 conditions per place. [2023-08-29 01:00:52,328 INFO L137 encePairwiseOnDemand]: 293/297 looper letters, 35 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2023-08-29 01:00:52,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 41 transitions, 160 flow [2023-08-29 01:00:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:00:52,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:00:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-29 01:00:52,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2023-08-29 01:00:52,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-29 01:00:52,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-29 01:00:52,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:00:52,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-29 01:00:52,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2023-08-29 01:00:52,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,335 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 50 flow. Second operand 3 states and 378 transitions. [2023-08-29 01:00:52,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 41 transitions, 160 flow [2023-08-29 01:00:52,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:00:52,336 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 68 flow [2023-08-29 01:00:52,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2023-08-29 01:00:52,337 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -13 predicate places. [2023-08-29 01:00:52,337 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 68 flow [2023-08-29 01:00:52,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2023-08-29 01:00:52,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:52,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 01:00:52,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:00:52,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:52,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1549584633, now seen corresponding path program 1 times [2023-08-29 01:00:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990807422] [2023-08-29 01:00:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:00:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:00:52,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:00:52,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990807422] [2023-08-29 01:00:52,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990807422] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:00:52,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:00:52,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:00:52,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676763032] [2023-08-29 01:00:52,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:00:52,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:00:52,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:00:52,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:00:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:00:52,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 297 [2023-08-29 01:00:52,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-08-29 01:00:52,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:00:52,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 297 [2023-08-29 01:00:52,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:00:52,493 INFO L130 PetriNetUnfolder]: 228/454 cut-off events. [2023-08-29 01:00:52,493 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2023-08-29 01:00:52,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 454 events. 228/454 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2072 event pairs, 80 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 944. Up to 257 conditions per place. [2023-08-29 01:00:52,496 INFO L137 encePairwiseOnDemand]: 293/297 looper letters, 32 selfloop transitions, 3 changer transitions 3/39 dead transitions. [2023-08-29 01:00:52,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 39 transitions, 176 flow [2023-08-29 01:00:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:00:52,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:00:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-08-29 01:00:52,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41301907968574636 [2023-08-29 01:00:52,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-08-29 01:00:52,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-08-29 01:00:52,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:00:52,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-08-29 01:00:52,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2023-08-29 01:00:52,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,502 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,502 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 68 flow. Second operand 3 states and 368 transitions. [2023-08-29 01:00:52,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 39 transitions, 176 flow [2023-08-29 01:00:52,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 39 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:00:52,503 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 82 flow [2023-08-29 01:00:52,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2023-08-29 01:00:52,504 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -11 predicate places. [2023-08-29 01:00:52,505 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 82 flow [2023-08-29 01:00:52,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-08-29 01:00:52,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:52,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:00:52,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:00:52,506 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:52,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1211693011, now seen corresponding path program 1 times [2023-08-29 01:00:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:52,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911259747] [2023-08-29 01:00:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:00:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:00:52,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:00:52,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911259747] [2023-08-29 01:00:52,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911259747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:00:52,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:00:52,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:00:52,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941255237] [2023-08-29 01:00:52,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:00:52,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 01:00:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:00:52,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 01:00:52,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 01:00:52,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 297 [2023-08-29 01:00:52,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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) [2023-08-29 01:00:52,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:00:52,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 297 [2023-08-29 01:00:52,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:00:52,670 INFO L130 PetriNetUnfolder]: 212/463 cut-off events. [2023-08-29 01:00:52,671 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-29 01:00:52,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 463 events. 212/463 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2313 event pairs, 47 based on Foata normal form. 25/412 useless extension candidates. Maximal degree in co-relation 1017. Up to 264 conditions per place. [2023-08-29 01:00:52,673 INFO L137 encePairwiseOnDemand]: 292/297 looper letters, 33 selfloop transitions, 3 changer transitions 11/51 dead transitions. [2023-08-29 01:00:52,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 51 transitions, 244 flow [2023-08-29 01:00:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 01:00:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 01:00:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2023-08-29 01:00:52,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40875420875420876 [2023-08-29 01:00:52,676 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2023-08-29 01:00:52,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2023-08-29 01:00:52,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:00:52,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2023-08-29 01:00:52,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2023-08-29 01:00:52,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 297.0) internal successors, (1782), 6 states have internal predecessors, (1782), 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) [2023-08-29 01:00:52,681 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 297.0) internal successors, (1782), 6 states have internal predecessors, (1782), 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) [2023-08-29 01:00:52,681 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 82 flow. Second operand 5 states and 607 transitions. [2023-08-29 01:00:52,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 51 transitions, 244 flow [2023-08-29 01:00:52,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 51 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:00:52,684 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 101 flow [2023-08-29 01:00:52,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=101, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-29 01:00:52,685 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2023-08-29 01:00:52,685 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 101 flow [2023-08-29 01:00:52,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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) [2023-08-29 01:00:52,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:52,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:00:52,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:00:52,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:52,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 460338704, now seen corresponding path program 1 times [2023-08-29 01:00:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:52,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604972731] [2023-08-29 01:00:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:00:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:00:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:00:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604972731] [2023-08-29 01:00:52,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604972731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:00:52,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:00:52,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:00:52,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407373592] [2023-08-29 01:00:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:00:52,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:00:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:00:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:00:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:00:52,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 297 [2023-08-29 01:00:52,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2023-08-29 01:00:52,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:00:52,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 297 [2023-08-29 01:00:52,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:00:52,831 INFO L130 PetriNetUnfolder]: 208/435 cut-off events. [2023-08-29 01:00:52,831 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2023-08-29 01:00:52,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 435 events. 208/435 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1974 event pairs, 117 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1129. Up to 374 conditions per place. [2023-08-29 01:00:52,833 INFO L137 encePairwiseOnDemand]: 293/297 looper letters, 22 selfloop transitions, 4 changer transitions 11/39 dead transitions. [2023-08-29 01:00:52,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 205 flow [2023-08-29 01:00:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:00:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:00:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-08-29 01:00:52,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4006734006734007 [2023-08-29 01:00:52,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-08-29 01:00:52,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-08-29 01:00:52,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:00:52,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-08-29 01:00:52,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2023-08-29 01:00:52,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,840 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 101 flow. Second operand 3 states and 357 transitions. [2023-08-29 01:00:52,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 205 flow [2023-08-29 01:00:52,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 200 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 01:00:52,843 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 100 flow [2023-08-29 01:00:52,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2023-08-29 01:00:52,843 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2023-08-29 01:00:52,844 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 100 flow [2023-08-29 01:00:52,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2023-08-29 01:00:52,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:52,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:00:52,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:00:52,845 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:52,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:52,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2076525962, now seen corresponding path program 1 times [2023-08-29 01:00:52,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:52,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718254521] [2023-08-29 01:00:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:52,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:00:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:00:52,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:00:52,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718254521] [2023-08-29 01:00:52,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718254521] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:00:52,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:00:52,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:00:52,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583491636] [2023-08-29 01:00:52,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:00:52,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:00:52,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:00:52,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:00:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:00:52,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 297 [2023-08-29 01:00:52,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-08-29 01:00:52,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:00:52,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 297 [2023-08-29 01:00:52,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:00:52,948 INFO L130 PetriNetUnfolder]: 100/256 cut-off events. [2023-08-29 01:00:52,949 INFO L131 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2023-08-29 01:00:52,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 256 events. 100/256 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1107 event pairs, 80 based on Foata normal form. 7/233 useless extension candidates. Maximal degree in co-relation 719. Up to 229 conditions per place. [2023-08-29 01:00:52,950 INFO L137 encePairwiseOnDemand]: 295/297 looper letters, 20 selfloop transitions, 0 changer transitions 7/30 dead transitions. [2023-08-29 01:00:52,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 180 flow [2023-08-29 01:00:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:00:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:00:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-08-29 01:00:52,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4051627384960718 [2023-08-29 01:00:52,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-08-29 01:00:52,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-08-29 01:00:52,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:00:52,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-08-29 01:00:52,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2023-08-29 01:00:52,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 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) [2023-08-29 01:00:52,956 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 100 flow. Second operand 3 states and 361 transitions. [2023-08-29 01:00:52,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 180 flow [2023-08-29 01:00:52,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 171 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:00:52,958 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 94 flow [2023-08-29 01:00:52,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=3, PETRI_FLOW=94, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-29 01:00:52,959 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2023-08-29 01:00:52,959 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 94 flow [2023-08-29 01:00:52,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-08-29 01:00:52,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:00:52,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:00:52,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:00:52,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 01:00:52,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:00:52,961 INFO L85 PathProgramCache]: Analyzing trace with hash -494264155, now seen corresponding path program 1 times [2023-08-29 01:00:52,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:00:52,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986620963] [2023-08-29 01:00:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:00:52,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:00:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:00:52,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:00:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:00:52,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:00:52,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:00:52,995 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2023-08-29 01:00:52,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2023-08-29 01:00:52,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2023-08-29 01:00:52,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2023-08-29 01:00:52,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2023-08-29 01:00:52,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2023-08-29 01:00:52,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2023-08-29 01:00:52,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2023-08-29 01:00:52,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2023-08-29 01:00:52,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2023-08-29 01:00:52,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2023-08-29 01:00:52,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2023-08-29 01:00:52,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2023-08-29 01:00:52,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2023-08-29 01:00:52,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2023-08-29 01:00:53,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2023-08-29 01:00:53,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2023-08-29 01:00:53,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2023-08-29 01:00:53,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2023-08-29 01:00:53,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 27 remaining) [2023-08-29 01:00:53,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2023-08-29 01:00:53,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2023-08-29 01:00:53,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2023-08-29 01:00:53,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2023-08-29 01:00:53,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2023-08-29 01:00:53,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2023-08-29 01:00:53,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2023-08-29 01:00:53,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:00:53,002 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:00:53,008 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:00:53,008 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:00:53,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:00:53 BasicIcfg [2023-08-29 01:00:53,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:00:53,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:00:53,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:00:53,036 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:00:53,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:00:48" (3/4) ... [2023-08-29 01:00:53,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:00:53,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:00:53,039 INFO L158 Benchmark]: Toolchain (without parser) took 5319.02ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 70.5MB in the beginning and 67.0MB in the end (delta: 3.5MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2023-08-29 01:00:53,039 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:00:53,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.93ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 50.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-29 01:00:53,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.75ms. Allocated memory is still 92.3MB. Free memory was 50.4MB in the beginning and 71.6MB in the end (delta: -21.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-08-29 01:00:53,040 INFO L158 Benchmark]: Boogie Preprocessor took 22.88ms. Allocated memory is still 92.3MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:00:53,041 INFO L158 Benchmark]: RCFGBuilder took 581.05ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 47.3MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-29 01:00:53,041 INFO L158 Benchmark]: TraceAbstraction took 4207.93ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 46.4MB in the beginning and 67.0MB in the end (delta: -20.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-08-29 01:00:53,041 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 134.2MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:00:53,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.93ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 50.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.75ms. Allocated memory is still 92.3MB. Free memory was 50.4MB in the beginning and 71.6MB in the end (delta: -21.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.88ms. Allocated memory is still 92.3MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.05ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 47.3MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4207.93ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 46.4MB in the beginning and 67.0MB in the end (delta: -20.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 134.2MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 138 PlacesBefore, 41 PlacesAfterwards, 140 TransitionsBefore, 42 TransitionsAfterwards, 4514 CoEnabledTransitionPairs, 6 FixpointIterations, 50 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 1 ChoiceCompositions, 156 TotalNumberOfCompositions, 8733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5407, independent: 5192, independent conditional: 0, independent unconditional: 5192, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2693, independent: 2631, independent conditional: 0, independent unconditional: 2631, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5407, independent: 2561, independent conditional: 0, independent unconditional: 2561, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 2693, unknown conditional: 0, unknown unconditional: 2693] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 737]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 [L746] CALL 1 BCSP_IoDecrement() [L709] 0 int lp = pendingIo; VAL [lp=1, lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; VAL [\result=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L712] 0 pendingIo = lp + 1 [L715] 0 return 0; [L735] RET, EXPR 0 BCSP_IoIncrement() [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L746] RET 1 BCSP_IoDecrement() [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L748] 1 int lse = stoppingEvent; [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped = 1=49, stopped=1, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: stopped = 1 [751] and C: !stopped [737] - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 173 locations, 27 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: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 332 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 8 mSDtfsCounter, 332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 01:00:53,080 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE