./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:34:39,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:34:39,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:34:39,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:34:39,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:34:39,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:34:39,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:34:39,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:34:39,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:34:39,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:34:39,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:34:39,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:34:39,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:34:39,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:34:39,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:34:39,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:34:39,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:34:39,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:34:39,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:34:39,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:34:39,535 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:34:39,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:34:39,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:34:39,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:34:39,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:34:39,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:34:39,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:34:39,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:34:39,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:34:39,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:34:39,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:34:39,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:34:39,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:34:39,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:34:39,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:34:39,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:34:39,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:34:39,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:34:39,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:34:39,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:34:39,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:34:39,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:34:39,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:34:39,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:34:39,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:34:39,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:34:39,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:34:39,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:34:39,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:34:39,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:34:39,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:34:39,590 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:34:39,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:34:39,591 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:34:39,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:34:39,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:34:39,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:34:39,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:34:39,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:34:39,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:34:39,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:34:39,592 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:34:39,594 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:34:39,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:34:39,594 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:34:39,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:34:39,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:34:39,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:34:39,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:34:39,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:39,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:34:39,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:34:39,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:34:39,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:34:39,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:34:39,596 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:34:39,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:34:39,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:34:39,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca [2022-04-18 16:34:39,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:34:39,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:34:39,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:34:39,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:34:39,863 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:34:39,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-04-18 16:34:39,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be484ae50/b262ba06458e4a7697e978dacad7841a/FLAG69626219c [2022-04-18 16:34:40,406 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:34:40,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-04-18 16:34:40,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be484ae50/b262ba06458e4a7697e978dacad7841a/FLAG69626219c [2022-04-18 16:34:40,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be484ae50/b262ba06458e4a7697e978dacad7841a [2022-04-18 16:34:40,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:34:40,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:34:40,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:40,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:34:40,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:34:40,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:40" (1/1) ... [2022-04-18 16:34:40,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b41c546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:40, skipping insertion in model container [2022-04-18 16:34:40,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:40" (1/1) ... [2022-04-18 16:34:40,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:34:40,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:34:40,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-04-18 16:34:40,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:41,003 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:34:41,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-04-18 16:34:41,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:41,061 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:34:41,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41 WrapperNode [2022-04-18 16:34:41,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:41,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:41,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:34:41,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:34:41,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,182 INFO L137 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 657 [2022-04-18 16:34:41,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:41,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:34:41,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:34:41,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:34:41,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:34:41,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:34:41,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:34:41,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:34:41,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (1/1) ... [2022-04-18 16:34:41,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:41,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:34:41,288 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) [2022-04-18 16:34:41,297 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 [2022-04-18 16:34:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:34:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:34:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:34:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:34:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:34:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:34:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:34:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:34:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:34:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:34:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:34:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:34:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:34:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-04-18 16:34:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-04-18 16:34:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-04-18 16:34:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-04-18 16:34:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-04-18 16:34:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-04-18 16:34:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:34:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:34:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:34:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:34:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:34:41,326 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:34:41,424 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:34:41,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:34:42,161 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:34:42,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:34:42,388 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:34:42,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:42 BoogieIcfgContainer [2022-04-18 16:34:42,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:34:42,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:34:42,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:34:42,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:34:42,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:34:40" (1/3) ... [2022-04-18 16:34:42,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cce4fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:42, skipping insertion in model container [2022-04-18 16:34:42,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:41" (2/3) ... [2022-04-18 16:34:42,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cce4fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:42, skipping insertion in model container [2022-04-18 16:34:42,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:42" (3/3) ... [2022-04-18 16:34:42,400 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-04-18 16:34:42,405 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:34:42,406 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:34:42,406 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 101 error locations. [2022-04-18 16:34:42,406 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:34:42,511 INFO L135 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-04-18 16:34:42,575 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:34:42,583 INFO L340 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 [2022-04-18 16:34:42,583 INFO L341 AbstractCegarLoop]: Starting to check reachability of 184 error locations. [2022-04-18 16:34:42,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 419 transitions, 894 flow [2022-04-18 16:34:42,758 INFO L129 PetriNetUnfolder]: 5/412 cut-off events. [2022-04-18 16:34:42,758 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:34:42,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 412 events. 5/412 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 460 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 311. Up to 2 conditions per place. [2022-04-18 16:34:42,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 436 places, 419 transitions, 894 flow [2022-04-18 16:34:42,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 384 transitions, 810 flow [2022-04-18 16:34:42,777 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2022-04-18 16:34:42,777 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:34:42,777 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:42,778 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:42,778 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 180 more)] === [2022-04-18 16:34:42,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:42,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1184508188, now seen corresponding path program 1 times [2022-04-18 16:34:42,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:42,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685824103] [2022-04-18 16:34:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:42,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:43,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:43,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685824103] [2022-04-18 16:34:43,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685824103] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:43,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:43,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341720054] [2022-04-18 16:34:43,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:43,060 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:43,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:43,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:43,100 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 419 [2022-04-18 16:34:43,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 384 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 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) [2022-04-18 16:34:43,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:43,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 419 [2022-04-18 16:34:43,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand