./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 16:30:42,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:30:42,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:30:42,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:30:42,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:30:42,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:30:42,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:30:42,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:30:42,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:30:42,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:30:42,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:30:42,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:30:42,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:30:42,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:30:42,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:30:42,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:30:42,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:30:42,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:30:42,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:30:42,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:30:42,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:30:42,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:30:42,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:30:42,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:30:42,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:30:42,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:30:42,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:30:42,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:30:42,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:30:42,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:30:42,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:30:42,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:30:42,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:30:42,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:30:42,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:30:42,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:30:42,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:30:42,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:30:42,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:30:42,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:30:42,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:30:42,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:30:42,229 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:30:42,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:30:42,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:30:42,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:30:42,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:30:42,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:30:42,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:30:42,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:30:42,232 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:30:42,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:30:42,233 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:30:42,234 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:30:42,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:30:42,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:30:42,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:30:42,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:30:42,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:30:42,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:30:42,235 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:30:42,235 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:30:42,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:30:42,235 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:30:42,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:30:42,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:30:42,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:30:42,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:30:42,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:30:42,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:30:42,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:30:42,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:30:42,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:30:42,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:30:42,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:30:42,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:30:42,238 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:30:42,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:30:42,239 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:30:42,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:30:42,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:30:42,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:30:42,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:30:42,549 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:30:42,549 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:30:42,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2023-08-29 16:30:43,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:30:43,940 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:30:43,940 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2023-08-29 16:30:43,951 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f48e5c84/f62196f5b0184d53b124469b676cbec7/FLAGdae58ac13 [2023-08-29 16:30:43,965 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f48e5c84/f62196f5b0184d53b124469b676cbec7 [2023-08-29 16:30:43,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:30:43,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:30:43,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:30:43,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:30:43,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:30:43,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:30:43" (1/1) ... [2023-08-29 16:30:43,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634b7b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:43, skipping insertion in model container [2023-08-29 16:30:43,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:30:43" (1/1) ... [2023-08-29 16:30:43,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:30:44,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:30:44,342 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 16:30:44,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:30:44,375 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:30:44,415 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 16:30:44,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:30:44,488 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:30:44,489 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:30:44,494 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:30:44,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44 WrapperNode [2023-08-29 16:30:44,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:30:44,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:30:44,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:30:44,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:30:44,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,558 INFO L138 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2023-08-29 16:30:44,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:30:44,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:30:44,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:30:44,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:30:44,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:30:44,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:30:44,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:30:44,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:30:44,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (1/1) ... [2023-08-29 16:30:44,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:30:44,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:30:44,638 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 16:30:44,657 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 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-08-29 16:30:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 16:30:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:30:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:30:44,680 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 16:30:44,848 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:30:44,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:30:45,060 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:30:45,123 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:30:45,124 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 16:30:45,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:30:45 BoogieIcfgContainer [2023-08-29 16:30:45,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:30:45,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:30:45,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:30:45,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:30:45,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:30:43" (1/3) ... [2023-08-29 16:30:45,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a0505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:30:45, skipping insertion in model container [2023-08-29 16:30:45,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:30:44" (2/3) ... [2023-08-29 16:30:45,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a0505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:30:45, skipping insertion in model container [2023-08-29 16:30:45,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:30:45" (3/3) ... [2023-08-29 16:30:45,140 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2023-08-29 16:30:45,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:30:45,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:30:45,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-29 16:30:45,154 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:30:45,198 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 16:30:45,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 141 transitions, 287 flow [2023-08-29 16:30:45,285 INFO L130 PetriNetUnfolder]: 6/140 cut-off events. [2023-08-29 16:30:45,285 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:30:45,290 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 16:30:45,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 141 transitions, 287 flow [2023-08-29 16:30:45,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 140 transitions, 283 flow [2023-08-29 16:30:45,297 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:30:45,305 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 140 transitions, 283 flow [2023-08-29 16:30:45,307 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 140 transitions, 283 flow [2023-08-29 16:30:45,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 140 transitions, 283 flow [2023-08-29 16:30:45,331 INFO L130 PetriNetUnfolder]: 6/140 cut-off events. [2023-08-29 16:30:45,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:30:45,333 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 16:30:45,335 INFO L119 LiptonReduction]: Number of co-enabled transitions 4514 [2023-08-29 16:30:48,010 INFO L134 LiptonReduction]: Checked pairs total: 8733 [2023-08-29 16:30:48,011 INFO L136 LiptonReduction]: Total number of compositions: 156 [2023-08-29 16:30:48,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:30:48,027 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;@540a8abe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:30:48,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-08-29 16:30:48,029 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:30:48,029 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:30:48,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:48,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:30:48,030 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 16:30:48,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:48,034 INFO L85 PathProgramCache]: Analyzing trace with hash 636, now seen corresponding path program 1 times [2023-08-29 16:30:48,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:48,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104281806] [2023-08-29 16:30:48,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:48,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:30:48,128 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 16:30:48,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:30:48,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104281806] [2023-08-29 16:30:48,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104281806] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:30:48,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:30:48,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:30:48,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153233055] [2023-08-29 16:30:48,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:30:48,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:30:48,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:30:48,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:30:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:30:48,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 297 [2023-08-29 16:30:48,162 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 16:30:48,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:30:48,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 297 [2023-08-29 16:30:48,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:30:48,209 INFO L130 PetriNetUnfolder]: 91/176 cut-off events. [2023-08-29 16:30:48,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:30:48,210 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 16:30:48,212 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 21 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-29 16:30:48,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 93 flow [2023-08-29 16:30:48,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:30:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:30:48,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 269 transitions. [2023-08-29 16:30:48,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45286195286195285 [2023-08-29 16:30:48,224 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 269 transitions. [2023-08-29 16:30:48,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 269 transitions. [2023-08-29 16:30:48,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:30:48,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 269 transitions. [2023-08-29 16:30:48,230 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 16:30:48,234 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 16:30:48,234 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 16:30:48,236 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 87 flow. Second operand 2 states and 269 transitions. [2023-08-29 16:30:48,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 93 flow [2023-08-29 16:30:48,239 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 16:30:48,240 INFO L231 Difference]: Finished difference. Result has 24 places, 24 transitions, 50 flow [2023-08-29 16:30:48,241 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 16:30:48,244 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -17 predicate places. [2023-08-29 16:30:48,244 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 24 transitions, 50 flow [2023-08-29 16:30:48,245 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 16:30:48,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:48,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 16:30:48,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:30:48,245 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 16:30:48,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash 604251925, now seen corresponding path program 1 times [2023-08-29 16:30:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:48,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778351] [2023-08-29 16:30:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:30:48,340 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 16:30:48,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:30:48,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778351] [2023-08-29 16:30:48,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:30:48,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:30:48,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:30:48,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325082195] [2023-08-29 16:30:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:30:48,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:30:48,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:30:48,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:30:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:30:48,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 297 [2023-08-29 16:30:48,352 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 16:30:48,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:30:48,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 297 [2023-08-29 16:30:48,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:30:48,454 INFO L130 PetriNetUnfolder]: 154/315 cut-off events. [2023-08-29 16:30:48,454 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:30:48,456 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 16:30:48,459 INFO L137 encePairwiseOnDemand]: 293/297 looper letters, 35 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2023-08-29 16:30:48,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 41 transitions, 160 flow [2023-08-29 16:30:48,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:30:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:30:48,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-29 16:30:48,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2023-08-29 16:30:48,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-29 16:30:48,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-29 16:30:48,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:30:48,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-29 16:30:48,467 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 16:30:48,471 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 16:30:48,471 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 16:30:48,471 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 50 flow. Second operand 3 states and 378 transitions. [2023-08-29 16:30:48,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 41 transitions, 160 flow [2023-08-29 16:30:48,472 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 16:30:48,473 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 68 flow [2023-08-29 16:30:48,473 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 16:30:48,474 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -13 predicate places. [2023-08-29 16:30:48,474 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 68 flow [2023-08-29 16:30:48,474 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 16:30:48,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:48,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 16:30:48,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:30:48,476 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 16:30:48,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:48,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1549584633, now seen corresponding path program 1 times [2023-08-29 16:30:48,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:48,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780669579] [2023-08-29 16:30:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:48,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:30:48,551 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 16:30:48,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:30:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780669579] [2023-08-29 16:30:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780669579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:30:48,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:30:48,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:30:48,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180357994] [2023-08-29 16:30:48,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:30:48,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:30:48,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:30:48,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:30:48,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:30:48,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 297 [2023-08-29 16:30:48,568 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 16:30:48,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:30:48,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 297 [2023-08-29 16:30:48,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:30:48,662 INFO L130 PetriNetUnfolder]: 228/454 cut-off events. [2023-08-29 16:30:48,662 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2023-08-29 16:30:48,663 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 16:30:48,665 INFO L137 encePairwiseOnDemand]: 293/297 looper letters, 32 selfloop transitions, 3 changer transitions 3/39 dead transitions. [2023-08-29 16:30:48,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 39 transitions, 176 flow [2023-08-29 16:30:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:30:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:30:48,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-08-29 16:30:48,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41301907968574636 [2023-08-29 16:30:48,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-08-29 16:30:48,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-08-29 16:30:48,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:30:48,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-08-29 16:30:48,669 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 16:30:48,670 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 16:30:48,671 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 16:30:48,671 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 68 flow. Second operand 3 states and 368 transitions. [2023-08-29 16:30:48,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 39 transitions, 176 flow [2023-08-29 16:30:48,672 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 16:30:48,673 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 82 flow [2023-08-29 16:30:48,673 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 16:30:48,674 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -11 predicate places. [2023-08-29 16:30:48,677 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 82 flow [2023-08-29 16:30:48,678 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 16:30:48,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:48,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:30:48,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 16:30:48,678 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 16:30:48,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:48,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1211693011, now seen corresponding path program 1 times [2023-08-29 16:30:48,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:48,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763533687] [2023-08-29 16:30:48,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:48,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:30:48,768 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 16:30:48,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:30:48,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763533687] [2023-08-29 16:30:48,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763533687] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:30:48,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:30:48,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:30:48,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654664097] [2023-08-29 16:30:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:30:48,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 16:30:48,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:30:48,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 16:30:48,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 16:30:48,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 297 [2023-08-29 16:30:48,777 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 16:30:48,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:30:48,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 297 [2023-08-29 16:30:48,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:30:48,875 INFO L130 PetriNetUnfolder]: 212/463 cut-off events. [2023-08-29 16:30:48,875 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-29 16:30:48,876 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 16:30:48,877 INFO L137 encePairwiseOnDemand]: 292/297 looper letters, 33 selfloop transitions, 3 changer transitions 11/51 dead transitions. [2023-08-29 16:30:48,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 51 transitions, 244 flow [2023-08-29 16:30:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 16:30:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 16:30:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2023-08-29 16:30:48,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40875420875420876 [2023-08-29 16:30:48,880 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2023-08-29 16:30:48,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2023-08-29 16:30:48,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:30:48,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2023-08-29 16:30:48,882 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 16:30:48,884 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 16:30:48,885 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 16:30:48,885 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 82 flow. Second operand 5 states and 607 transitions. [2023-08-29 16:30:48,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 51 transitions, 244 flow [2023-08-29 16:30:48,887 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 16:30:48,888 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 101 flow [2023-08-29 16:30:48,888 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 16:30:48,888 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2023-08-29 16:30:48,889 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 101 flow [2023-08-29 16:30:48,889 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 16:30:48,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:48,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:30:48,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:30:48,890 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 16:30:48,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash 460338704, now seen corresponding path program 1 times [2023-08-29 16:30:48,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:48,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512761757] [2023-08-29 16:30:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:48,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:30:48,929 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 16:30:48,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:30:48,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512761757] [2023-08-29 16:30:48,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512761757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:30:48,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:30:48,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:30:48,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827941977] [2023-08-29 16:30:48,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:30:48,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:30:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:30:48,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:30:48,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:30:48,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 297 [2023-08-29 16:30:48,944 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 16:30:48,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:30:48,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 297 [2023-08-29 16:30:48,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:30:49,022 INFO L130 PetriNetUnfolder]: 208/435 cut-off events. [2023-08-29 16:30:49,022 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2023-08-29 16:30:49,023 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 16:30:49,024 INFO L137 encePairwiseOnDemand]: 293/297 looper letters, 22 selfloop transitions, 4 changer transitions 11/39 dead transitions. [2023-08-29 16:30:49,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 205 flow [2023-08-29 16:30:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:30:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:30:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-08-29 16:30:49,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4006734006734007 [2023-08-29 16:30:49,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-08-29 16:30:49,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-08-29 16:30:49,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:30:49,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-08-29 16:30:49,027 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 16:30:49,029 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 16:30:49,030 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 16:30:49,030 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 101 flow. Second operand 3 states and 357 transitions. [2023-08-29 16:30:49,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 205 flow [2023-08-29 16:30:49,031 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 16:30:49,032 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 100 flow [2023-08-29 16:30:49,032 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 16:30:49,033 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2023-08-29 16:30:49,033 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 100 flow [2023-08-29 16:30:49,033 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 16:30:49,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:49,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:30:49,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 16:30:49,034 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 16:30:49,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2076525962, now seen corresponding path program 1 times [2023-08-29 16:30:49,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:49,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806777642] [2023-08-29 16:30:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:49,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:30:49,080 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 16:30:49,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:30:49,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806777642] [2023-08-29 16:30:49,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806777642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:30:49,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:30:49,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:30:49,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330234478] [2023-08-29 16:30:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:30:49,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:30:49,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:30:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:30:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:30:49,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 297 [2023-08-29 16:30:49,090 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 16:30:49,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:30:49,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 297 [2023-08-29 16:30:49,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:30:49,137 INFO L130 PetriNetUnfolder]: 100/256 cut-off events. [2023-08-29 16:30:49,137 INFO L131 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2023-08-29 16:30:49,138 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 16:30:49,138 INFO L137 encePairwiseOnDemand]: 295/297 looper letters, 20 selfloop transitions, 0 changer transitions 7/30 dead transitions. [2023-08-29 16:30:49,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 180 flow [2023-08-29 16:30:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:30:49,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:30:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-08-29 16:30:49,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4051627384960718 [2023-08-29 16:30:49,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-08-29 16:30:49,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-08-29 16:30:49,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:30:49,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-08-29 16:30:49,142 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 16:30:49,143 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 16:30:49,144 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 16:30:49,144 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 100 flow. Second operand 3 states and 361 transitions. [2023-08-29 16:30:49,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 180 flow [2023-08-29 16:30:49,146 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 16:30:49,146 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 94 flow [2023-08-29 16:30:49,147 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 16:30:49,147 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2023-08-29 16:30:49,147 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 94 flow [2023-08-29 16:30:49,148 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 16:30:49,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:30:49,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:30:49,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 16:30:49,148 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 16:30:49,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:30:49,149 INFO L85 PathProgramCache]: Analyzing trace with hash -494264155, now seen corresponding path program 1 times [2023-08-29 16:30:49,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:30:49,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240341803] [2023-08-29 16:30:49,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:30:49,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:30:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:30:49,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 16:30:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:30:49,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 16:30:49,181 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 16:30:49,182 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2023-08-29 16:30:49,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2023-08-29 16:30:49,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2023-08-29 16:30:49,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2023-08-29 16:30:49,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2023-08-29 16:30:49,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2023-08-29 16:30:49,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2023-08-29 16:30:49,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2023-08-29 16:30:49,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2023-08-29 16:30:49,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2023-08-29 16:30:49,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2023-08-29 16:30:49,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2023-08-29 16:30:49,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2023-08-29 16:30:49,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2023-08-29 16:30:49,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2023-08-29 16:30:49,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2023-08-29 16:30:49,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2023-08-29 16:30:49,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2023-08-29 16:30:49,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2023-08-29 16:30:49,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 27 remaining) [2023-08-29 16:30:49,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2023-08-29 16:30:49,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2023-08-29 16:30:49,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2023-08-29 16:30:49,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2023-08-29 16:30:49,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2023-08-29 16:30:49,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2023-08-29 16:30:49,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2023-08-29 16:30:49,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 16:30:49,189 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:30:49,194 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 16:30:49,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 16:30:49,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:30:49 BasicIcfg [2023-08-29 16:30:49,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 16:30:49,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 16:30:49,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 16:30:49,220 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 16:30:49,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:30:45" (3/4) ... [2023-08-29 16:30:49,222 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 16:30:49,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 16:30:49,225 INFO L158 Benchmark]: Toolchain (without parser) took 5253.35ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 64.8MB in the beginning and 51.1MB in the end (delta: 13.8MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-08-29 16:30:49,225 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:30:49,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.46ms. Allocated memory is still 88.1MB. Free memory was 64.6MB in the beginning and 64.7MB in the end (delta: -160.9kB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-08-29 16:30:49,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.03ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 62.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 16:30:49,226 INFO L158 Benchmark]: Boogie Preprocessor took 44.15ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 61.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:30:49,227 INFO L158 Benchmark]: RCFGBuilder took 521.16ms. Allocated memory is still 88.1MB. Free memory was 61.0MB in the beginning and 38.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-29 16:30:49,228 INFO L158 Benchmark]: TraceAbstraction took 4084.60ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 65.7MB in the beginning and 52.1MB in the end (delta: 13.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-08-29 16:30:49,228 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 111.1MB. Free memory was 52.1MB in the beginning and 51.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:30:49,229 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 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.46ms. Allocated memory is still 88.1MB. Free memory was 64.6MB in the beginning and 64.7MB in the end (delta: -160.9kB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.03ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 62.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.15ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 61.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.16ms. Allocated memory is still 88.1MB. Free memory was 61.0MB in the beginning and 38.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4084.60ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 65.7MB in the beginning and 52.1MB in the end (delta: 13.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 111.1MB. Free memory was 52.1MB in the beginning and 51.1MB in the end (delta: 1.0MB). 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: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, 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, 0.2s 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 16:30:49,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE