./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.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/04-mutex_22-deref_read.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 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 --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 17:29:03,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:29:03,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:29:03,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:29:03,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:29:03,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:29:03,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:29:03,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:29:03,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:29:03,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:29:03,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:29:03,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:29:03,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:29:03,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:29:03,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:29:03,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:29:03,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:29:03,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:29:03,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:29:03,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:29:03,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:29:03,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:29:03,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:29:03,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:29:03,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:29:03,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:29:03,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:29:03,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:29:03,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:29:03,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:29:03,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:29:03,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:29:03,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:29:03,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:29:03,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:29:03,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:29:03,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:29:03,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:29:03,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:29:03,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:29:03,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:29:03,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:29:03,724 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:29:03,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:29:03,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:29:03,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:29:03,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:29:03,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:29:03,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:29:03,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:29:03,727 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:29:03,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:29:03,727 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:29:03,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:29:03,729 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:29:03,729 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:29:03,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:29:03,729 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:29:03,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:29:03,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:29:03,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:29:03,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:29:03,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:03,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:29:03,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:29:03,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:29:03,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:29:03,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:29:03,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:29:03,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:29:03,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:29:03,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:29:03,731 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:29:03,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:29:03,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:29:03,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:29:03,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:29:03,967 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:29:03,967 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:29:03,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.i [2023-08-29 17:29:04,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:29:05,076 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:29:05,076 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.i [2023-08-29 17:29:05,085 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c613c440/a0d39dfa4e864bc5a1ae0d68c26aeba6/FLAG27a788955 [2023-08-29 17:29:05,094 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c613c440/a0d39dfa4e864bc5a1ae0d68c26aeba6 [2023-08-29 17:29:05,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:29:05,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:29:05,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:05,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:29:05,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:29:05,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa439fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05, skipping insertion in model container [2023-08-29 17:29:05,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:29:05,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:29:05,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:05,387 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:29:05,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:05,454 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:29:05,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05 WrapperNode [2023-08-29 17:29:05,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:05,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:05,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:29:05,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:29:05,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,503 INFO L138 Inliner]: procedures = 162, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-08-29 17:29:05,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:05,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:29:05,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:29:05,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:29:05,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:29:05,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:29:05,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:29:05,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:29:05,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (1/1) ... [2023-08-29 17:29:05,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:05,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:29:05,563 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 17:29:05,584 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 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:29:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:29:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:29:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:29:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:29:05,596 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 17:29:05,694 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:29:05,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:29:05,793 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:29:05,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:29:05,797 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:29:05,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:05 BoogieIcfgContainer [2023-08-29 17:29:05,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:29:05,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:29:05,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:29:05,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:29:05,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:29:05" (1/3) ... [2023-08-29 17:29:05,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75992a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:05, skipping insertion in model container [2023-08-29 17:29:05,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:05" (2/3) ... [2023-08-29 17:29:05,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75992a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:05, skipping insertion in model container [2023-08-29 17:29:05,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:05" (3/3) ... [2023-08-29 17:29:05,803 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.i [2023-08-29 17:29:05,812 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:29:05,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:29:05,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 17:29:05,818 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:29:05,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:29:05,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 149 flow [2023-08-29 17:29:05,928 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2023-08-29 17:29:05,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:05,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:29:05,934 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 72 transitions, 149 flow [2023-08-29 17:29:05,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2023-08-29 17:29:05,942 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:29:05,952 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 71 transitions, 145 flow [2023-08-29 17:29:05,954 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 71 transitions, 145 flow [2023-08-29 17:29:05,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 145 flow [2023-08-29 17:29:05,977 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2023-08-29 17:29:05,977 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:05,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:29:05,978 INFO L119 LiptonReduction]: Number of co-enabled transitions 1116 [2023-08-29 17:29:07,324 INFO L134 LiptonReduction]: Checked pairs total: 4982 [2023-08-29 17:29:07,325 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-29 17:29:07,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:29:07,347 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;@5a7bdc37, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:29:07,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-29 17:29:07,349 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-29 17:29:07,350 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:07,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:07,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 17:29:07,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 17:29:07,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:07,356 INFO L85 PathProgramCache]: Analyzing trace with hash 237823, now seen corresponding path program 1 times [2023-08-29 17:29:07,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941646451] [2023-08-29 17:29:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:07,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:07,483 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 17:29:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:07,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941646451] [2023-08-29 17:29:07,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941646451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:07,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:07,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 17:29:07,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213538706] [2023-08-29 17:29:07,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:07,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:29:07,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:07,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:29:07,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:29:07,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 120 [2023-08-29 17:29:07,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 59 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 17:29:07,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:07,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 120 [2023-08-29 17:29:07,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:07,558 INFO L130 PetriNetUnfolder]: 30/120 cut-off events. [2023-08-29 17:29:07,558 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:07,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 120 events. 30/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 434 event pairs, 30 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 189. Up to 74 conditions per place. [2023-08-29 17:29:07,560 INFO L137 encePairwiseOnDemand]: 118/120 looper letters, 13 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-08-29 17:29:07,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 81 flow [2023-08-29 17:29:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:29:07,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:29:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 157 transitions. [2023-08-29 17:29:07,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6541666666666667 [2023-08-29 17:29:07,570 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 157 transitions. [2023-08-29 17:29:07,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 157 transitions. [2023-08-29 17:29:07,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:07,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 157 transitions. [2023-08-29 17:29:07,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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 17:29:07,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 17:29:07,581 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 17:29:07,583 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 59 flow. Second operand 2 states and 157 transitions. [2023-08-29 17:29:07,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 81 flow [2023-08-29 17:29:07,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:07,586 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 54 flow [2023-08-29 17:29:07,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2023-08-29 17:29:07,591 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-08-29 17:29:07,591 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 54 flow [2023-08-29 17:29:07,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 17:29:07,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:07,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 17:29:07,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:29:07,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 17:29:07,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:07,592 INFO L85 PathProgramCache]: Analyzing trace with hash 7372374, now seen corresponding path program 1 times [2023-08-29 17:29:07,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:07,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414740074] [2023-08-29 17:29:07,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:07,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:07,626 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 17:29:07,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:07,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414740074] [2023-08-29 17:29:07,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414740074] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:07,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:07,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:07,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225670339] [2023-08-29 17:29:07,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:07,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:07,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:07,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:07,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:07,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 120 [2023-08-29 17:29:07,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 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 17:29:07,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:07,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 120 [2023-08-29 17:29:07,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:07,658 INFO L130 PetriNetUnfolder]: 36/136 cut-off events. [2023-08-29 17:29:07,659 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:07,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 136 events. 36/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 506 event pairs, 25 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 224. Up to 83 conditions per place. [2023-08-29 17:29:07,660 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 15 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-29 17:29:07,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 90 flow [2023-08-29 17:29:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-29 17:29:07,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2023-08-29 17:29:07,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-29 17:29:07,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-29 17:29:07,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:07,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-29 17:29:07,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 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 17:29:07,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 17:29:07,663 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 17:29:07,664 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 54 flow. Second operand 3 states and 214 transitions. [2023-08-29 17:29:07,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 90 flow [2023-08-29 17:29:07,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:07,664 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 64 flow [2023-08-29 17:29:07,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-29 17:29:07,665 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-29 17:29:07,665 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 64 flow [2023-08-29 17:29:07,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 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 17:29:07,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:07,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:07,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:29:07,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 17:29:07,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:07,666 INFO L85 PathProgramCache]: Analyzing trace with hash 116312954, now seen corresponding path program 1 times [2023-08-29 17:29:07,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:07,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178950826] [2023-08-29 17:29:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:07,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:08,002 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 17:29:08,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:08,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178950826] [2023-08-29 17:29:08,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178950826] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:08,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:08,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:29:08,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525029716] [2023-08-29 17:29:08,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:08,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:29:08,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:08,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:29:08,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:29:08,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 120 [2023-08-29 17:29:08,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 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 17:29:08,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:08,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 120 [2023-08-29 17:29:08,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:08,165 INFO L130 PetriNetUnfolder]: 110/263 cut-off events. [2023-08-29 17:29:08,166 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 17:29:08,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 263 events. 110/263 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1019 event pairs, 35 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 534. Up to 176 conditions per place. [2023-08-29 17:29:08,170 INFO L137 encePairwiseOnDemand]: 109/120 looper letters, 30 selfloop transitions, 22 changer transitions 8/63 dead transitions. [2023-08-29 17:29:08,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 63 transitions, 266 flow [2023-08-29 17:29:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:29:08,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:29:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 395 transitions. [2023-08-29 17:29:08,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5486111111111112 [2023-08-29 17:29:08,175 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 395 transitions. [2023-08-29 17:29:08,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 395 transitions. [2023-08-29 17:29:08,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:08,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 395 transitions. [2023-08-29 17:29:08,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 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 17:29:08,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 17:29:08,180 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 17:29:08,180 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 64 flow. Second operand 6 states and 395 transitions. [2023-08-29 17:29:08,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 63 transitions, 266 flow [2023-08-29 17:29:08,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 63 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:08,181 INFO L231 Difference]: Finished difference. Result has 41 places, 47 transitions, 214 flow [2023-08-29 17:29:08,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=41, PETRI_TRANSITIONS=47} [2023-08-29 17:29:08,182 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2023-08-29 17:29:08,184 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 47 transitions, 214 flow [2023-08-29 17:29:08,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 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 17:29:08,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:08,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:08,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:29:08,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 17:29:08,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:08,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2142487667, now seen corresponding path program 1 times [2023-08-29 17:29:08,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:08,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683583533] [2023-08-29 17:29:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:08,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:08,374 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 17:29:08,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683583533] [2023-08-29 17:29:08,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683583533] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:08,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:08,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:29:08,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814962152] [2023-08-29 17:29:08,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:08,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:29:08,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:08,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:29:08,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:29:08,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 120 [2023-08-29 17:29:08,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 47 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:08,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:08,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 120 [2023-08-29 17:29:08,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:08,494 INFO L130 PetriNetUnfolder]: 128/304 cut-off events. [2023-08-29 17:29:08,494 INFO L131 PetriNetUnfolder]: For 123/127 co-relation queries the response was YES. [2023-08-29 17:29:08,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 304 events. 128/304 cut-off events. For 123/127 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1237 event pairs, 33 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 883. Up to 207 conditions per place. [2023-08-29 17:29:08,497 INFO L137 encePairwiseOnDemand]: 110/120 looper letters, 53 selfloop transitions, 25 changer transitions 11/94 dead transitions. [2023-08-29 17:29:08,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 94 transitions, 576 flow [2023-08-29 17:29:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:29:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:29:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 409 transitions. [2023-08-29 17:29:08,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5680555555555555 [2023-08-29 17:29:08,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 409 transitions. [2023-08-29 17:29:08,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 409 transitions. [2023-08-29 17:29:08,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:08,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 409 transitions. [2023-08-29 17:29:08,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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 17:29:08,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 17:29:08,506 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 17:29:08,506 INFO L175 Difference]: Start difference. First operand has 41 places, 47 transitions, 214 flow. Second operand 6 states and 409 transitions. [2023-08-29 17:29:08,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 94 transitions, 576 flow [2023-08-29 17:29:08,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 94 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:08,511 INFO L231 Difference]: Finished difference. Result has 50 places, 67 transitions, 402 flow [2023-08-29 17:29:08,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=50, PETRI_TRANSITIONS=67} [2023-08-29 17:29:08,512 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2023-08-29 17:29:08,512 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 67 transitions, 402 flow [2023-08-29 17:29:08,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:08,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:08,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:08,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:29:08,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 17:29:08,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1385321164, now seen corresponding path program 1 times [2023-08-29 17:29:08,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:08,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531696760] [2023-08-29 17:29:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:08,559 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 17:29:08,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:08,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531696760] [2023-08-29 17:29:08,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531696760] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:08,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:08,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 17:29:08,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291279198] [2023-08-29 17:29:08,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:08,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:08,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:08,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:08,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:08,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 120 [2023-08-29 17:29:08,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 67 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 17:29:08,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:08,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 120 [2023-08-29 17:29:08,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:08,595 INFO L130 PetriNetUnfolder]: 11/70 cut-off events. [2023-08-29 17:29:08,595 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-29 17:29:08,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 70 events. 11/70 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 143 event pairs, 2 based on Foata normal form. 7/77 useless extension candidates. Maximal degree in co-relation 203. Up to 30 conditions per place. [2023-08-29 17:29:08,595 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-08-29 17:29:08,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 27 transitions, 157 flow [2023-08-29 17:29:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:08,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-08-29 17:29:08,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2023-08-29 17:29:08,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-08-29 17:29:08,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-08-29 17:29:08,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:08,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-08-29 17:29:08,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 17:29:08,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 17:29:08,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 17:29:08,598 INFO L175 Difference]: Start difference. First operand has 50 places, 67 transitions, 402 flow. Second operand 3 states and 215 transitions. [2023-08-29 17:29:08,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 27 transitions, 157 flow [2023-08-29 17:29:08,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 107 flow, removed 6 selfloop flow, removed 19 redundant places. [2023-08-29 17:29:08,600 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2023-08-29 17:29:08,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2023-08-29 17:29:08,602 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-29 17:29:08,602 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2023-08-29 17:29:08,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 17:29:08,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-29 17:29:08,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-29 17:29:08,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:29:08,607 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 17:29:08,610 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:29:08,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:29:08,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:29:08 BasicIcfg [2023-08-29 17:29:08,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:29:08,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:29:08,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:29:08,617 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:29:08,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:05" (3/4) ... [2023-08-29 17:29:08,619 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 17:29:08,622 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 17:29:08,625 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-29 17:29:08,626 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 17:29:08,626 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 17:29:08,649 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 17:29:08,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:29:08,649 INFO L158 Benchmark]: Toolchain (without parser) took 3553.24ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 59.5MB in the beginning and 92.7MB in the end (delta: -33.2MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,650 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:08,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.14ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 40.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.37ms. Allocated memory is still 83.9MB. Free memory was 40.4MB in the beginning and 61.9MB in the end (delta: -21.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,650 INFO L158 Benchmark]: Boogie Preprocessor took 36.62ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 60.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,651 INFO L158 Benchmark]: RCFGBuilder took 256.26ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 47.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,651 INFO L158 Benchmark]: TraceAbstraction took 2816.99ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 46.6MB in the beginning and 95.9MB in the end (delta: -49.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,651 INFO L158 Benchmark]: Witness Printer took 32.59ms. Allocated memory is still 125.8MB. Free memory was 95.9MB in the beginning and 92.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:29:08,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.14ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 40.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.37ms. Allocated memory is still 83.9MB. Free memory was 40.4MB in the beginning and 61.9MB in the end (delta: -21.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.62ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 60.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 256.26ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 47.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2816.99ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 46.6MB in the beginning and 95.9MB in the end (delta: -49.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 32.59ms. Allocated memory is still 125.8MB. Free memory was 95.9MB in the beginning and 92.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 75 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 28 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 4982 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1633, independent: 1333, independent conditional: 0, independent unconditional: 1333, dependent: 300, dependent conditional: 0, dependent unconditional: 300, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 570, independent: 529, independent conditional: 0, independent unconditional: 529, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1633, independent: 804, independent conditional: 0, independent unconditional: 804, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 570, unknown conditional: 0, unknown unconditional: 570] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 9 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: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 2 mSDtfsCounter, 387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 17:29:08,672 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 Result: TRUE