./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.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/goblint-regression/06-symbeq_10-equ_rc.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 fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 --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 17:39:50,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:39:50,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:39:50,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:39:50,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:39:50,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:39:50,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:39:50,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:39:50,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:39:50,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:39:50,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:39:50,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:39:50,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:39:50,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:39:50,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:39:50,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:39:50,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:39:50,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:39:50,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:39:50,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:39:50,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:39:50,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:39:50,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:39:50,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:39:50,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:39:50,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:39:50,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:39:50,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:39:50,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:39:50,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:39:50,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:39:50,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:39:50,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:39:50,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:39:50,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:39:50,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:39:50,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:39:50,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:39:50,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:39:50,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:39:50,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:39:50,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:39:50,810 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:39:50,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:39:50,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:39:50,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:39:50,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:39:50,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:39:50,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:39:50,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:39:50,814 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:39:50,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:39:50,815 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:39:50,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:39:50,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:39:50,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:39:50,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:39:50,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:39:50,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:39:50,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:39:50,816 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:39:50,817 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:39:50,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:39:50,817 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:39:50,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:39:50,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:39:50,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:39:50,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:39:50,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:39:50,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:39:50,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:39:50,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:39:50,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:39:50,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:39:50,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:39:50,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:39:50,820 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:39:50,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:39:50,820 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:39:50,820 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:39:51,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:39:51,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:39:51,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:39:51,132 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:39:51,132 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:39:51,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2023-08-29 17:39:52,267 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:39:52,568 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:39:52,568 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2023-08-29 17:39:52,581 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2a11095/6dab0b37ac844f129d9c4c1e681275d5/FLAG9db31461f [2023-08-29 17:39:52,594 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2a11095/6dab0b37ac844f129d9c4c1e681275d5 [2023-08-29 17:39:52,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:39:52,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:39:52,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:39:52,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:39:52,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:39:52,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:39:52" (1/1) ... [2023-08-29 17:39:52,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8789c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:52, skipping insertion in model container [2023-08-29 17:39:52,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:39:52" (1/1) ... [2023-08-29 17:39:52,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:39:52,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:39:52,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:39:53,001 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:39:53,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:39:53,145 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:39:53,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53 WrapperNode [2023-08-29 17:39:53,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:39:53,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:39:53,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:39:53,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:39:53,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,228 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2023-08-29 17:39:53,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:39:53,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:39:53,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:39:53,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:39:53,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,267 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:39:53,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:39:53,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:39:53,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:39:53,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (1/1) ... [2023-08-29 17:39:53,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:39:53,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:39:53,310 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 17:39:53,326 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 17:39:53,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:39:53,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:39:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:39:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:39:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:39:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:39:53,350 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:39:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:39:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:39:53,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:39:53,352 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 17:39:53,515 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:39:53,516 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:39:53,715 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:39:53,721 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:39:53,721 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:39:53,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:39:53 BoogieIcfgContainer [2023-08-29 17:39:53,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:39:53,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:39:53,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:39:53,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:39:53,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:39:52" (1/3) ... [2023-08-29 17:39:53,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22375a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:39:53, skipping insertion in model container [2023-08-29 17:39:53,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:39:53" (2/3) ... [2023-08-29 17:39:53,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22375a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:39:53, skipping insertion in model container [2023-08-29 17:39:53,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:39:53" (3/3) ... [2023-08-29 17:39:53,729 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2023-08-29 17:39:53,735 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:39:53,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:39:53,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-29 17:39:53,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:39:53,800 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:39:53,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 86 transitions, 177 flow [2023-08-29 17:39:53,874 INFO L130 PetriNetUnfolder]: 1/85 cut-off events. [2023-08-29 17:39:53,874 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:39:53,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 1/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 17:39:53,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 86 transitions, 177 flow [2023-08-29 17:39:53,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 85 transitions, 173 flow [2023-08-29 17:39:53,883 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:39:53,895 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 85 transitions, 173 flow [2023-08-29 17:39:53,898 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 85 transitions, 173 flow [2023-08-29 17:39:53,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 173 flow [2023-08-29 17:39:53,926 INFO L130 PetriNetUnfolder]: 1/85 cut-off events. [2023-08-29 17:39:53,927 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:39:53,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 1/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 17:39:53,930 INFO L119 LiptonReduction]: Number of co-enabled transitions 570 [2023-08-29 17:39:57,591 INFO L134 LiptonReduction]: Checked pairs total: 2739 [2023-08-29 17:39:57,592 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-29 17:39:57,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:39:57,609 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;@6c917783, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:39:57,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 17:39:57,615 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 17:39:57,615 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:39:57,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:39:57,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:39:57,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 17:39:57,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:39:57,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1094503810, now seen corresponding path program 1 times [2023-08-29 17:39:57,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:39:57,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744371391] [2023-08-29 17:39:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:39:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:39:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:39:58,299 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 17:39:58,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:39:58,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744371391] [2023-08-29 17:39:58,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744371391] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:39:58,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:39:58,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:39:58,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68817224] [2023-08-29 17:39:58,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:39:58,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:39:58,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:39:58,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:39:58,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:39:58,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 155 [2023-08-29 17:39:58,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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 17:39:58,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:39:58,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 155 [2023-08-29 17:39:58,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:39:58,649 INFO L130 PetriNetUnfolder]: 80/201 cut-off events. [2023-08-29 17:39:58,649 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:39:58,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 201 events. 80/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 783 event pairs, 22 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 380. Up to 124 conditions per place. [2023-08-29 17:39:58,654 INFO L137 encePairwiseOnDemand]: 144/155 looper letters, 25 selfloop transitions, 22 changer transitions 4/53 dead transitions. [2023-08-29 17:39:58,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 53 transitions, 211 flow [2023-08-29 17:39:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:39:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:39:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-08-29 17:39:58,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5204301075268817 [2023-08-29 17:39:58,677 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 484 transitions. [2023-08-29 17:39:58,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 484 transitions. [2023-08-29 17:39:58,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:39:58,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 484 transitions. [2023-08-29 17:39:58,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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 17:39:58,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 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 17:39:58,704 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 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 17:39:58,706 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 484 transitions. [2023-08-29 17:39:58,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 53 transitions, 211 flow [2023-08-29 17:39:58,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 53 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:39:58,710 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2023-08-29 17:39:58,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2023-08-29 17:39:58,714 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-08-29 17:39:58,714 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2023-08-29 17:39:58,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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 17:39:58,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:39:58,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:39:58,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:39:58,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 17:39:58,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:39:58,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2063186106, now seen corresponding path program 1 times [2023-08-29 17:39:58,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:39:58,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066104045] [2023-08-29 17:39:58,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:39:58,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:39:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:39:58,910 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 17:39:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:39:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066104045] [2023-08-29 17:39:58,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066104045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:39:58,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:39:58,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:39:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960069543] [2023-08-29 17:39:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:39:58,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:39:58,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:39:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:39:58,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:39:58,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 155 [2023-08-29 17:39:58,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 17:39:58,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:39:58,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 155 [2023-08-29 17:39:58,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:39:59,054 INFO L130 PetriNetUnfolder]: 119/281 cut-off events. [2023-08-29 17:39:59,054 INFO L131 PetriNetUnfolder]: For 110/114 co-relation queries the response was YES. [2023-08-29 17:39:59,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 281 events. 119/281 cut-off events. For 110/114 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1190 event pairs, 21 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 818. Up to 180 conditions per place. [2023-08-29 17:39:59,057 INFO L137 encePairwiseOnDemand]: 144/155 looper letters, 41 selfloop transitions, 26 changer transitions 14/84 dead transitions. [2023-08-29 17:39:59,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 84 transitions, 534 flow [2023-08-29 17:39:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:39:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:39:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 472 transitions. [2023-08-29 17:39:59,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5075268817204301 [2023-08-29 17:39:59,060 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 472 transitions. [2023-08-29 17:39:59,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 472 transitions. [2023-08-29 17:39:59,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:39:59,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 472 transitions. [2023-08-29 17:39:59,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 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 17:39:59,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 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 17:39:59,065 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 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 17:39:59,065 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 472 transitions. [2023-08-29 17:39:59,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 84 transitions, 534 flow [2023-08-29 17:39:59,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 84 transitions, 534 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:39:59,069 INFO L231 Difference]: Finished difference. Result has 43 places, 62 transitions, 416 flow [2023-08-29 17:39:59,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=43, PETRI_TRANSITIONS=62} [2023-08-29 17:39:59,070 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-08-29 17:39:59,070 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 62 transitions, 416 flow [2023-08-29 17:39:59,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 17:39:59,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:39:59,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:39:59,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:39:59,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 17:39:59,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:39:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash 714477190, now seen corresponding path program 1 times [2023-08-29 17:39:59,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:39:59,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687664661] [2023-08-29 17:39:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:39:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:39:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:39:59,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:39:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:39:59,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:39:59,135 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:39:59,135 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-29 17:39:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-29 17:39:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-29 17:39:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-29 17:39:59,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:39:59,137 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 17:39:59,142 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:39:59,142 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:39:59,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:39:59 BasicIcfg [2023-08-29 17:39:59,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:39:59,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:39:59,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:39:59,166 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:39:59,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:39:53" (3/4) ... [2023-08-29 17:39:59,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:39:59,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:39:59,169 INFO L158 Benchmark]: Toolchain (without parser) took 6570.84ms. Allocated memory was 73.4MB in the beginning and 115.3MB in the end (delta: 41.9MB). Free memory was 50.2MB in the beginning and 45.5MB in the end (delta: 4.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-08-29 17:39:59,169 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:39:59,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.35ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 50.0MB in the beginning and 60.8MB in the end (delta: -10.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-08-29 17:39:59,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.01ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 58.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:39:59,170 INFO L158 Benchmark]: Boogie Preprocessor took 47.08ms. Allocated memory is still 88.1MB. Free memory was 58.1MB in the beginning and 56.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:39:59,171 INFO L158 Benchmark]: RCFGBuilder took 445.24ms. Allocated memory is still 88.1MB. Free memory was 56.6MB in the beginning and 41.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 17:39:59,171 INFO L158 Benchmark]: TraceAbstraction took 5440.77ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 41.3MB in the beginning and 45.5MB in the end (delta: -4.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-08-29 17:39:59,172 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 115.3MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:39:59,174 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 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.35ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 50.0MB in the beginning and 60.8MB in the end (delta: -10.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.01ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 58.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.08ms. Allocated memory is still 88.1MB. Free memory was 58.1MB in the beginning and 56.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 445.24ms. Allocated memory is still 88.1MB. Free memory was 56.6MB in the beginning and 41.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5440.77ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 41.3MB in the beginning and 45.5MB in the end (delta: -4.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 115.3MB. Free memory is still 45.5MB. 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: 3.7s, 88 PlacesBefore, 24 PlacesAfterwards, 85 TransitionsBefore, 20 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 2739 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1016, independent: 772, independent conditional: 0, independent unconditional: 772, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 276, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1016, independent: 523, independent conditional: 0, independent unconditional: 523, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 276, unknown conditional: 0, unknown unconditional: 276] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1019]: Data race detected Data race detected The following path leads to a data race: [L989-L993] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] 0 int x = __VERIFIER_nondet_int(); [L1004] 0 pthread_t id; [L1005] 0 struct s *s; [L1006] 0 int *d; [L1007] 0 pthread_mutex_t *m; [L1008] COND FALSE 0 !(\read(x)) [L1012] 0 s = &B [L1013] 0 x++ [L1015] 0 m = &s->mutex [L1016] 0 d = &s->datum [L1017] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={1:0}, B={2:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, pthread_create(&id,((void *)0),t_fun,((void *)0))=-1, s={2:0}, x++=37, x++=39, x=1] [L1019] 0 *d = 8 VAL [A={1:0}, B={2:0}, arg={0:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, pthread_mutex_lock(&A.mutex)=0, s={2:0}, x++=37, x++=39, x=1] [L996] 1 B.datum = 5 VAL [A={1:0}, B={2:0}, arg={0:0}, arg={0:0}] [L1019] 0 *d = 8 VAL [*d = 8=40, A={1:0}, B={2:0}, arg={0:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x++=37, x++=39, x=1] [L1019] 0 *d = 8 VAL [*d = 8=40, A={1:0}, B.datum = 5=38, B={2:0}, arg={0:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x++=37, x++=39, x=1] Now there is a data race (on the heap) between C: B.datum = 5 [996] and C: *d = 8 [1019] - UnprovableResult [Line: 1017]: 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. - UnprovableResult [Line: 996]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 4 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: 5.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 0 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.7s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 17:39:59,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE