./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.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/02-base_24-malloc_races.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 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 --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 17:27:19,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:27:19,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:27:19,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:27:19,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:27:19,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:27:19,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:27:19,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:27:19,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:27:19,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:27:19,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:27:19,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:27:19,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:27:19,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:27:19,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:27:19,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:27:19,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:27:19,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:27:19,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:27:19,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:27:19,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:27:19,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:27:19,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:27:19,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:27:19,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:27:19,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:27:19,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:27:19,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:27:19,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:27:19,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:27:19,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:27:19,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:27:19,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:27:19,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:27:19,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:27:19,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:27:19,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:27:19,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:27:19,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:27:19,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:27:19,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:27:19,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:27:19,857 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:27:19,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:27:19,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:27:19,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:27:19,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:27:19,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:27:19,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:27:19,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:27:19,860 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:27:19,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:27:19,861 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:27:19,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:27:19,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:27:19,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:27:19,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:27:19,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:27:19,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:27:19,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:27:19,863 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:27:19,863 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:27:19,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:27:19,863 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:27:19,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:27:19,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:27:19,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:27:19,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:27:19,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:27:19,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:27:19,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:27:19,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:27:19,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:27:19,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:27:19,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:27:19,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:27:19,866 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:27:19,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:27:19,866 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:27:19,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:27:20,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:27:20,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:27:20,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:27:20,197 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:27:20,198 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:27:20,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2023-08-29 17:27:21,327 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:27:21,598 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:27:21,604 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2023-08-29 17:27:21,628 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba97a07f9/4b8197491638482fa4cbf7e4d4f0b8c6/FLAG669ee7d15 [2023-08-29 17:27:21,645 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba97a07f9/4b8197491638482fa4cbf7e4d4f0b8c6 [2023-08-29 17:27:21,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:27:21,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:27:21,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:27:21,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:27:21,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:27:21,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:27:21" (1/1) ... [2023-08-29 17:27:21,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1865dd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:21, skipping insertion in model container [2023-08-29 17:27:21,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:27:21" (1/1) ... [2023-08-29 17:27:21,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:27:21,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:27:22,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:27:22,123 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:27:22,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:27:22,295 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:27:22,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22 WrapperNode [2023-08-29 17:27:22,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:27:22,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:27:22,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:27:22,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:27:22,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,362 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2023-08-29 17:27:22,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:27:22,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:27:22,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:27:22,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:27:22,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,407 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:27:22,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:27:22,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:27:22,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:27:22,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (1/1) ... [2023-08-29 17:27:22,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:27:22,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:27:22,446 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 17:27:22,450 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 17:27:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:27:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:27:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:27:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:27:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:27:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:27:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:27:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:27:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:27:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:27:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:27:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:27:22,481 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 17:27:22,610 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:27:22,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:27:22,923 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:27:22,929 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:27:22,930 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:27:22,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:22 BoogieIcfgContainer [2023-08-29 17:27:22,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:27:22,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:27:22,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:27:22,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:27:22,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:27:21" (1/3) ... [2023-08-29 17:27:22,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56120d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:27:22, skipping insertion in model container [2023-08-29 17:27:22,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:22" (2/3) ... [2023-08-29 17:27:22,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56120d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:27:22, skipping insertion in model container [2023-08-29 17:27:22,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:22" (3/3) ... [2023-08-29 17:27:22,938 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2023-08-29 17:27:22,945 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:27:22,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:27:22,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-29 17:27:22,953 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:27:23,012 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:27:23,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 205 flow [2023-08-29 17:27:23,081 INFO L130 PetriNetUnfolder]: 0/99 cut-off events. [2023-08-29 17:27:23,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:23,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:27:23,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 100 transitions, 205 flow [2023-08-29 17:27:23,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 99 transitions, 201 flow [2023-08-29 17:27:23,091 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:27:23,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 99 transitions, 201 flow [2023-08-29 17:27:23,101 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 99 transitions, 201 flow [2023-08-29 17:27:23,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 201 flow [2023-08-29 17:27:23,122 INFO L130 PetriNetUnfolder]: 0/99 cut-off events. [2023-08-29 17:27:23,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:23,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:27:23,124 INFO L119 LiptonReduction]: Number of co-enabled transitions 2040 [2023-08-29 17:27:25,570 INFO L134 LiptonReduction]: Checked pairs total: 15676 [2023-08-29 17:27:25,570 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-29 17:27:25,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:27:25,588 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;@40ef4ea7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:27:25,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-29 17:27:25,589 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:27:25,589 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:25,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:25,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:27:25,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:25,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:25,595 INFO L85 PathProgramCache]: Analyzing trace with hash 318, now seen corresponding path program 1 times [2023-08-29 17:27:25,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:25,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609093650] [2023-08-29 17:27:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:25,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:25,693 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 17:27:25,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:25,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609093650] [2023-08-29 17:27:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609093650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:25,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:27:25,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715043933] [2023-08-29 17:27:25,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:25,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:27:25,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:27:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:27:25,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 159 [2023-08-29 17:27:25,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 17:27:25,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:25,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 159 [2023-08-29 17:27:25,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:25,785 INFO L130 PetriNetUnfolder]: 35/208 cut-off events. [2023-08-29 17:27:25,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:25,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 208 events. 35/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 925 event pairs, 35 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 288. Up to 85 conditions per place. [2023-08-29 17:27:25,789 INFO L137 encePairwiseOnDemand]: 157/159 looper letters, 14 selfloop transitions, 0 changer transitions 0/46 dead transitions. [2023-08-29 17:27:25,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 123 flow [2023-08-29 17:27:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:27:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:27:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2023-08-29 17:27:25,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6729559748427673 [2023-08-29 17:27:25,801 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 214 transitions. [2023-08-29 17:27:25,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 214 transitions. [2023-08-29 17:27:25,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:25,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 214 transitions. [2023-08-29 17:27:25,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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 17:27:25,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 17:27:25,810 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 17:27:25,811 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 99 flow. Second operand 2 states and 214 transitions. [2023-08-29 17:27:25,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 123 flow [2023-08-29 17:27:25,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:27:25,815 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 94 flow [2023-08-29 17:27:25,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-29 17:27:25,819 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-08-29 17:27:25,819 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 94 flow [2023-08-29 17:27:25,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 17:27:25,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:25,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:27:25,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:27:25,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:25,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:25,821 INFO L85 PathProgramCache]: Analyzing trace with hash 303604012, now seen corresponding path program 1 times [2023-08-29 17:27:25,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:25,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956950577] [2023-08-29 17:27:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:25,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:25,914 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 17:27:25,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:25,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956950577] [2023-08-29 17:27:25,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956950577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:25,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:25,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:27:25,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768082107] [2023-08-29 17:27:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:25,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:27:25,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:25,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:27:25,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:27:25,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2023-08-29 17:27:25,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 17:27:25,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:25,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2023-08-29 17:27:25,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:25,998 INFO L130 PetriNetUnfolder]: 48/233 cut-off events. [2023-08-29 17:27:25,999 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:26,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 48/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1045 event pairs, 29 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 347. Up to 106 conditions per place. [2023-08-29 17:27:26,004 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 18 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-29 17:27:26,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 138 flow [2023-08-29 17:27:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:27:26,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:27:26,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-29 17:27:26,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6247379454926625 [2023-08-29 17:27:26,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-29 17:27:26,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-29 17:27:26,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:26,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-29 17:27:26,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 17:27:26,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 17:27:26,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 17:27:26,017 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 94 flow. Second operand 3 states and 298 transitions. [2023-08-29 17:27:26,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 138 flow [2023-08-29 17:27:26,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:26,019 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 104 flow [2023-08-29 17:27:26,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2023-08-29 17:27:26,020 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2023-08-29 17:27:26,020 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 104 flow [2023-08-29 17:27:26,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 17:27:26,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:26,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:26,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:27:26,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:26,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1969543495, now seen corresponding path program 1 times [2023-08-29 17:27:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:26,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606558806] [2023-08-29 17:27:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:26,417 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 17:27:26,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:26,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606558806] [2023-08-29 17:27:26,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606558806] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:26,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:26,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:26,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534889802] [2023-08-29 17:27:26,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:26,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:26,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:26,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:26,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:26,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 159 [2023-08-29 17:27:26,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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 17:27:26,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:26,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 159 [2023-08-29 17:27:26,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:26,769 INFO L130 PetriNetUnfolder]: 240/755 cut-off events. [2023-08-29 17:27:26,770 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 17:27:26,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 755 events. 240/755 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4559 event pairs, 25 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 1319. Up to 274 conditions per place. [2023-08-29 17:27:26,775 INFO L137 encePairwiseOnDemand]: 144/159 looper letters, 71 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2023-08-29 17:27:26,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 126 transitions, 488 flow [2023-08-29 17:27:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:26,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2023-08-29 17:27:26,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6278825995807128 [2023-08-29 17:27:26,778 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2023-08-29 17:27:26,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2023-08-29 17:27:26,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:26,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2023-08-29 17:27:26,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 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 17:27:26,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:26,783 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:26,783 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 104 flow. Second operand 6 states and 599 transitions. [2023-08-29 17:27:26,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 126 transitions, 488 flow [2023-08-29 17:27:26,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 126 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:26,786 INFO L231 Difference]: Finished difference. Result has 60 places, 84 transitions, 340 flow [2023-08-29 17:27:26,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=60, PETRI_TRANSITIONS=84} [2023-08-29 17:27:26,788 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2023-08-29 17:27:26,790 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 84 transitions, 340 flow [2023-08-29 17:27:26,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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 17:27:26,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:26,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:26,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:27:26,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:26,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:26,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1746522081, now seen corresponding path program 1 times [2023-08-29 17:27:26,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:26,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026982987] [2023-08-29 17:27:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:26,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:27,046 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 17:27:27,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:27,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026982987] [2023-08-29 17:27:27,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026982987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:27,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:27,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:27,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287648980] [2023-08-29 17:27:27,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:27,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:27,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:27,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:27,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:27,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 159 [2023-08-29 17:27:27,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 84 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 17:27:27,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:27,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 159 [2023-08-29 17:27:27,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:27,351 INFO L130 PetriNetUnfolder]: 452/1152 cut-off events. [2023-08-29 17:27:27,351 INFO L131 PetriNetUnfolder]: For 434/446 co-relation queries the response was YES. [2023-08-29 17:27:27,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 1152 events. 452/1152 cut-off events. For 434/446 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6993 event pairs, 183 based on Foata normal form. 23/1128 useless extension candidates. Maximal degree in co-relation 2909. Up to 815 conditions per place. [2023-08-29 17:27:27,358 INFO L137 encePairwiseOnDemand]: 144/159 looper letters, 99 selfloop transitions, 45 changer transitions 0/158 dead transitions. [2023-08-29 17:27:27,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 158 transitions, 888 flow [2023-08-29 17:27:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2023-08-29 17:27:27,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5817610062893082 [2023-08-29 17:27:27,361 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2023-08-29 17:27:27,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2023-08-29 17:27:27,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:27,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2023-08-29 17:27:27,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 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 17:27:27,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:27,365 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:27,365 INFO L175 Difference]: Start difference. First operand has 60 places, 84 transitions, 340 flow. Second operand 6 states and 555 transitions. [2023-08-29 17:27:27,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 158 transitions, 888 flow [2023-08-29 17:27:27,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 158 transitions, 888 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:27,372 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 681 flow [2023-08-29 17:27:27,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=681, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2023-08-29 17:27:27,373 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2023-08-29 17:27:27,373 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 681 flow [2023-08-29 17:27:27,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 17:27:27,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:27,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:27,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:27:27,374 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:27,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:27,374 INFO L85 PathProgramCache]: Analyzing trace with hash -924462950, now seen corresponding path program 1 times [2023-08-29 17:27:27,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:27,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581414159] [2023-08-29 17:27:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:27,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:27,409 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 17:27:27,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:27,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581414159] [2023-08-29 17:27:27,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581414159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:27,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:27,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:27:27,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138632004] [2023-08-29 17:27:27,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:27,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:27:27,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:27,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:27:27,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:27:27,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2023-08-29 17:27:27,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 17:27:27,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:27,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2023-08-29 17:27:27,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:27,534 INFO L130 PetriNetUnfolder]: 237/811 cut-off events. [2023-08-29 17:27:27,535 INFO L131 PetriNetUnfolder]: For 696/750 co-relation queries the response was YES. [2023-08-29 17:27:27,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 811 events. 237/811 cut-off events. For 696/750 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5198 event pairs, 42 based on Foata normal form. 17/815 useless extension candidates. Maximal degree in co-relation 2190. Up to 250 conditions per place. [2023-08-29 17:27:27,540 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 59 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-08-29 17:27:27,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 905 flow [2023-08-29 17:27:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:27:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:27:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-29 17:27:27,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6373165618448637 [2023-08-29 17:27:27,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-29 17:27:27,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-29 17:27:27,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:27,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-29 17:27:27,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 17:27:27,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 17:27:27,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 17:27:27,545 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 681 flow. Second operand 3 states and 304 transitions. [2023-08-29 17:27:27,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 905 flow [2023-08-29 17:27:27,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 889 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:27,552 INFO L231 Difference]: Finished difference. Result has 70 places, 126 transitions, 675 flow [2023-08-29 17:27:27,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=70, PETRI_TRANSITIONS=126} [2023-08-29 17:27:27,553 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2023-08-29 17:27:27,553 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 126 transitions, 675 flow [2023-08-29 17:27:27,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 17:27:27,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:27,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:27,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:27:27,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:27,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1958450872, now seen corresponding path program 1 times [2023-08-29 17:27:27,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:27,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293032462] [2023-08-29 17:27:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:27,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:27,602 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 17:27:27,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:27,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293032462] [2023-08-29 17:27:27,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293032462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:27,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:27,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 17:27:27,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774940325] [2023-08-29 17:27:27,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:27,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:27:27,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:27:27,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:27:27,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 159 [2023-08-29 17:27:27,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 126 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 17:27:27,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:27,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 159 [2023-08-29 17:27:27,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:27,654 INFO L130 PetriNetUnfolder]: 49/223 cut-off events. [2023-08-29 17:27:27,654 INFO L131 PetriNetUnfolder]: For 136/142 co-relation queries the response was YES. [2023-08-29 17:27:27,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 223 events. 49/223 cut-off events. For 136/142 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 888 event pairs, 11 based on Foata normal form. 12/232 useless extension candidates. Maximal degree in co-relation 584. Up to 68 conditions per place. [2023-08-29 17:27:27,656 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 19 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2023-08-29 17:27:27,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 348 flow [2023-08-29 17:27:27,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:27:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:27:27,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-08-29 17:27:27,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6310272536687631 [2023-08-29 17:27:27,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-08-29 17:27:27,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-08-29 17:27:27,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:27,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-08-29 17:27:27,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 17:27:27,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 17:27:27,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 17:27:27,660 INFO L175 Difference]: Start difference. First operand has 70 places, 126 transitions, 675 flow. Second operand 3 states and 301 transitions. [2023-08-29 17:27:27,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 348 flow [2023-08-29 17:27:27,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 304 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-08-29 17:27:27,663 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 255 flow [2023-08-29 17:27:27,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-29 17:27:27,664 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2023-08-29 17:27:27,664 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 255 flow [2023-08-29 17:27:27,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 17:27:27,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:27,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:27,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:27:27,675 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:27,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2088875983, now seen corresponding path program 1 times [2023-08-29 17:27:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:27,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582919993] [2023-08-29 17:27:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:27,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:27,948 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 17:27:27,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:27,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582919993] [2023-08-29 17:27:27,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582919993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:27,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:27,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127446425] [2023-08-29 17:27:27,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:27,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:27,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:28,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 159 [2023-08-29 17:27:28,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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 17:27:28,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:28,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 159 [2023-08-29 17:27:28,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:28,118 INFO L130 PetriNetUnfolder]: 141/415 cut-off events. [2023-08-29 17:27:28,118 INFO L131 PetriNetUnfolder]: For 125/127 co-relation queries the response was YES. [2023-08-29 17:27:28,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 415 events. 141/415 cut-off events. For 125/127 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1834 event pairs, 51 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 1062. Up to 266 conditions per place. [2023-08-29 17:27:28,121 INFO L137 encePairwiseOnDemand]: 148/159 looper letters, 69 selfloop transitions, 21 changer transitions 4/106 dead transitions. [2023-08-29 17:27:28,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 563 flow [2023-08-29 17:27:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 527 transitions. [2023-08-29 17:27:28,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5524109014675053 [2023-08-29 17:27:28,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 527 transitions. [2023-08-29 17:27:28,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 527 transitions. [2023-08-29 17:27:28,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:28,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 527 transitions. [2023-08-29 17:27:28,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 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 17:27:28,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:28,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:28,127 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 255 flow. Second operand 6 states and 527 transitions. [2023-08-29 17:27:28,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 563 flow [2023-08-29 17:27:28,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:27:28,130 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 414 flow [2023-08-29 17:27:28,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2023-08-29 17:27:28,131 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 20 predicate places. [2023-08-29 17:27:28,131 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 414 flow [2023-08-29 17:27:28,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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 17:27:28,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:28,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:28,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:27:28,132 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:28,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash 882238423, now seen corresponding path program 1 times [2023-08-29 17:27:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:28,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216850014] [2023-08-29 17:27:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:28,330 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 17:27:28,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:28,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216850014] [2023-08-29 17:27:28,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216850014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:28,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:28,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:28,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693154905] [2023-08-29 17:27:28,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:28,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:28,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:28,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:28,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 159 [2023-08-29 17:27:28,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 17:27:28,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:28,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 159 [2023-08-29 17:27:28,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:28,631 INFO L130 PetriNetUnfolder]: 209/590 cut-off events. [2023-08-29 17:27:28,631 INFO L131 PetriNetUnfolder]: For 429/435 co-relation queries the response was YES. [2023-08-29 17:27:28,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1921 conditions, 590 events. 209/590 cut-off events. For 429/435 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2965 event pairs, 32 based on Foata normal form. 18/606 useless extension candidates. Maximal degree in co-relation 1904. Up to 284 conditions per place. [2023-08-29 17:27:28,635 INFO L137 encePairwiseOnDemand]: 144/159 looper letters, 84 selfloop transitions, 48 changer transitions 17/165 dead transitions. [2023-08-29 17:27:28,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 165 transitions, 1053 flow [2023-08-29 17:27:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-29 17:27:28,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194968553459119 [2023-08-29 17:27:28,638 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-29 17:27:28,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-29 17:27:28,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:28,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-29 17:27:28,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 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 17:27:28,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:28,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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 17:27:28,642 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 414 flow. Second operand 6 states and 591 transitions. [2023-08-29 17:27:28,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 165 transitions, 1053 flow [2023-08-29 17:27:28,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 165 transitions, 1045 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:28,648 INFO L231 Difference]: Finished difference. Result has 81 places, 119 transitions, 753 flow [2023-08-29 17:27:28,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=753, PETRI_PLACES=81, PETRI_TRANSITIONS=119} [2023-08-29 17:27:28,650 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2023-08-29 17:27:28,650 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 119 transitions, 753 flow [2023-08-29 17:27:28,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 17:27:28,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:28,650 INFO L208 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] [2023-08-29 17:27:28,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:27:28,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:28,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:28,651 INFO L85 PathProgramCache]: Analyzing trace with hash -696175190, now seen corresponding path program 1 times [2023-08-29 17:27:28,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:28,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407686343] [2023-08-29 17:27:28,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:28,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:28,913 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 17:27:28,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:28,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407686343] [2023-08-29 17:27:28,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407686343] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:28,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:28,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 17:27:28,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157824486] [2023-08-29 17:27:28,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:28,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 17:27:28,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:28,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 17:27:28,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 17:27:29,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 159 [2023-08-29 17:27:29,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 119 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 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 17:27:29,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:29,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 159 [2023-08-29 17:27:29,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:29,172 INFO L130 PetriNetUnfolder]: 186/503 cut-off events. [2023-08-29 17:27:29,173 INFO L131 PetriNetUnfolder]: For 896/917 co-relation queries the response was YES. [2023-08-29 17:27:29,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2130 conditions, 503 events. 186/503 cut-off events. For 896/917 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2397 event pairs, 34 based on Foata normal form. 11/513 useless extension candidates. Maximal degree in co-relation 2108. Up to 321 conditions per place. [2023-08-29 17:27:29,176 INFO L137 encePairwiseOnDemand]: 152/159 looper letters, 106 selfloop transitions, 26 changer transitions 9/153 dead transitions. [2023-08-29 17:27:29,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 153 transitions, 1327 flow [2023-08-29 17:27:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 17:27:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 17:27:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 572 transitions. [2023-08-29 17:27:29,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5139263252470799 [2023-08-29 17:27:29,179 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 572 transitions. [2023-08-29 17:27:29,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 572 transitions. [2023-08-29 17:27:29,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:29,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 572 transitions. [2023-08-29 17:27:29,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 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 17:27:29,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 17:27:29,183 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 17:27:29,183 INFO L175 Difference]: Start difference. First operand has 81 places, 119 transitions, 753 flow. Second operand 7 states and 572 transitions. [2023-08-29 17:27:29,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 153 transitions, 1327 flow [2023-08-29 17:27:29,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 153 transitions, 1278 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-29 17:27:29,192 INFO L231 Difference]: Finished difference. Result has 82 places, 117 transitions, 745 flow [2023-08-29 17:27:29,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=745, PETRI_PLACES=82, PETRI_TRANSITIONS=117} [2023-08-29 17:27:29,192 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 30 predicate places. [2023-08-29 17:27:29,193 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 117 transitions, 745 flow [2023-08-29 17:27:29,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 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 17:27:29,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:29,193 INFO L208 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] [2023-08-29 17:27:29,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:27:29,193 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:29,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash -185853064, now seen corresponding path program 1 times [2023-08-29 17:27:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:29,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79095896] [2023-08-29 17:27:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:29,480 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 17:27:29,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:29,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79095896] [2023-08-29 17:27:29,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79095896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:29,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:29,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 17:27:29,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630932297] [2023-08-29 17:27:29,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 17:27:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:29,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 17:27:29,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 17:27:29,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 159 [2023-08-29 17:27:29,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 117 transitions, 745 flow. Second operand has 8 states, 8 states have (on average 81.75) internal successors, (654), 8 states have internal predecessors, (654), 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 17:27:29,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:29,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 159 [2023-08-29 17:27:29,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:29,875 INFO L130 PetriNetUnfolder]: 182/488 cut-off events. [2023-08-29 17:27:29,876 INFO L131 PetriNetUnfolder]: For 830/843 co-relation queries the response was YES. [2023-08-29 17:27:29,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2133 conditions, 488 events. 182/488 cut-off events. For 830/843 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2288 event pairs, 20 based on Foata normal form. 13/500 useless extension candidates. Maximal degree in co-relation 2113. Up to 151 conditions per place. [2023-08-29 17:27:29,879 INFO L137 encePairwiseOnDemand]: 147/159 looper letters, 109 selfloop transitions, 51 changer transitions 7/182 dead transitions. [2023-08-29 17:27:29,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 182 transitions, 1512 flow [2023-08-29 17:27:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 17:27:29,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 17:27:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 659 transitions. [2023-08-29 17:27:29,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5920934411500449 [2023-08-29 17:27:29,881 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 659 transitions. [2023-08-29 17:27:29,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 659 transitions. [2023-08-29 17:27:29,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:29,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 659 transitions. [2023-08-29 17:27:29,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.14285714285714) internal successors, (659), 7 states have internal predecessors, (659), 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 17:27:29,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 17:27:29,885 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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 17:27:29,885 INFO L175 Difference]: Start difference. First operand has 82 places, 117 transitions, 745 flow. Second operand 7 states and 659 transitions. [2023-08-29 17:27:29,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 182 transitions, 1512 flow [2023-08-29 17:27:29,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 182 transitions, 1354 flow, removed 18 selfloop flow, removed 7 redundant places. [2023-08-29 17:27:29,893 INFO L231 Difference]: Finished difference. Result has 85 places, 124 transitions, 911 flow [2023-08-29 17:27:29,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=911, PETRI_PLACES=85, PETRI_TRANSITIONS=124} [2023-08-29 17:27:29,894 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 33 predicate places. [2023-08-29 17:27:29,894 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 124 transitions, 911 flow [2023-08-29 17:27:29,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.75) internal successors, (654), 8 states have internal predecessors, (654), 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 17:27:29,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:29,894 INFO L208 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] [2023-08-29 17:27:29,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:27:29,895 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:29,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash 899386530, now seen corresponding path program 1 times [2023-08-29 17:27:29,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:29,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200065731] [2023-08-29 17:27:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:29,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:27:29,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:27:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:27:29,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:27:29,941 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:27:29,941 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-29 17:27:29,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-29 17:27:29,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-29 17:27:29,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-29 17:27:29,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-29 17:27:29,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-29 17:27:29,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-29 17:27:29,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-29 17:27:29,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-29 17:27:29,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:27:29,945 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:29,950 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:27:29,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:27:29,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:27:29 BasicIcfg [2023-08-29 17:27:29,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:27:29,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:27:29,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:27:29,991 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:27:29,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:22" (3/4) ... [2023-08-29 17:27:29,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:27:29,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:27:29,994 INFO L158 Benchmark]: Toolchain (without parser) took 8344.17ms. Allocated memory was 73.4MB in the beginning and 174.1MB in the end (delta: 100.7MB). Free memory was 49.7MB in the beginning and 115.5MB in the end (delta: -65.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-08-29 17:27:29,994 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 73.4MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:27:29,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.88ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 49.4MB in the beginning and 53.4MB in the end (delta: -4.0MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2023-08-29 17:27:29,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.72ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 50.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:27:29,995 INFO L158 Benchmark]: Boogie Preprocessor took 53.88ms. Allocated memory is still 92.3MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:27:29,995 INFO L158 Benchmark]: RCFGBuilder took 514.38ms. Allocated memory is still 92.3MB. Free memory was 49.0MB in the beginning and 65.7MB in the end (delta: -16.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-29 17:27:29,996 INFO L158 Benchmark]: TraceAbstraction took 7056.91ms. Allocated memory was 92.3MB in the beginning and 174.1MB in the end (delta: 81.8MB). Free memory was 65.2MB in the beginning and 116.6MB in the end (delta: -51.3MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-08-29 17:27:29,996 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 174.1MB. Free memory was 116.6MB in the beginning and 115.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:27:29,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 73.4MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.88ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 49.4MB in the beginning and 53.4MB in the end (delta: -4.0MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.72ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 50.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.88ms. Allocated memory is still 92.3MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.38ms. Allocated memory is still 92.3MB. Free memory was 49.0MB in the beginning and 65.7MB in the end (delta: -16.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7056.91ms. Allocated memory was 92.3MB in the beginning and 174.1MB in the end (delta: 81.8MB). Free memory was 65.2MB in the beginning and 116.6MB in the end (delta: -51.3MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 174.1MB. Free memory was 116.6MB in the beginning and 115.5MB 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: 2.5s, 103 PlacesBefore, 52 PlacesAfterwards, 99 TransitionsBefore, 48 TransitionsAfterwards, 2040 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 15676 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4815, independent: 4167, independent conditional: 0, independent unconditional: 4167, dependent: 648, dependent conditional: 0, dependent unconditional: 648, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 883, independent: 811, independent conditional: 0, independent unconditional: 811, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4815, independent: 3356, independent conditional: 0, independent unconditional: 3356, dependent: 576, dependent conditional: 0, dependent unconditional: 576, unknown: 883, unknown conditional: 0, unknown unconditional: 883] , Statistics on independence cache: Total cache size (in pairs): 278, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1241]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 x = malloc(sizeof(int)) [L1236] 0 y = malloc(sizeof(int)) [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-3:0}, y={-2:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1239] EXPR 0 \read(*x) VAL [\read(*x)=25, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1239] 0 printf("%d\n",*x) [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, pthread_mutex_lock(&m)=0, x={-3:0}, y={-2:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] EXPR 0 \read(*y) VAL [\read(*y)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [*y = 8=26, arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] 0 printf("%d\n",*y) VAL [*y = 8=26, \read(*y)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: x = malloc(sizeof(int)) [1235] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1236] * C: *x = 3 [1228] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: 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: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: 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, 133 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 646 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1818 IncrementalHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 224 mSolverCounterUnsat, 35 mSDtfsCounter, 1818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=10, InterpolantAutomatonStates: 49, 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, 1.6s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 17:27:30,061 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