./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/weaver/chl-simpl-str-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfa53b3a6eade068c4346d28766037c8d26fae61c62dd4c8f6fc2f9d68567d2c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:35:20,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:35:20,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:35:20,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:35:20,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:35:20,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:35:20,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:35:20,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:35:20,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:35:20,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:35:20,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:35:20,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:35:20,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:35:20,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:35:20,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:35:20,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:35:20,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:35:20,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:35:20,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:35:20,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:35:20,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:35:20,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:35:20,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:35:20,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:35:20,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:35:20,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:35:20,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:35:20,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:35:20,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:35:20,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:35:20,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:35:20,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:35:20,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:35:20,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:35:20,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:35:20,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:35:20,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:35:20,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:35:20,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:35:20,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:35:20,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:35:20,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:35:20,647 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:35:20,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:35:20,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:35:20,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:35:20,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:35:20,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:35:20,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:35:20,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:35:20,649 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:35:20,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:35:20,650 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:35:20,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:35:20,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:35:20,651 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:35:20,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:35:20,652 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:35:20,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:35:20,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:35:20,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:35:20,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:35:20,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:35:20,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:35:20,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:35:20,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:35:20,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:35:20,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:35:20,653 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:35:20,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:35:20,654 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:35:20,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:35:20,654 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:35:20,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfa53b3a6eade068c4346d28766037c8d26fae61c62dd4c8f6fc2f9d68567d2c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:35:20,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:35:20,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:35:20,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:35:20,862 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:35:20,863 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:35:20,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-08-31 21:35:21,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:35:21,961 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:35:21,961 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-08-31 21:35:21,965 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bab49eb1/357b74c820904e8682d44c3ab27a0332/FLAGf69585d71 [2023-08-31 21:35:21,974 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bab49eb1/357b74c820904e8682d44c3ab27a0332 [2023-08-31 21:35:21,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:35:21,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:35:21,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:35:21,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:35:21,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:35:21,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:35:21" (1/1) ... [2023-08-31 21:35:21,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426a1f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:21, skipping insertion in model container [2023-08-31 21:35:21,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:35:21" (1/1) ... [2023-08-31 21:35:21,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:35:21,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:35:22,104 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2023-08-31 21:35:22,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:35:22,114 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:35:22,130 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2023-08-31 21:35:22,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:35:22,140 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:35:22,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22 WrapperNode [2023-08-31 21:35:22,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:35:22,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:35:22,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:35:22,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:35:22,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,170 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 204 [2023-08-31 21:35:22,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:35:22,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:35:22,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:35:22,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:35:22,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:35:22,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:35:22,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:35:22,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:35:22,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (1/1) ... [2023-08-31 21:35:22,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:35:22,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:35:22,240 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) [2023-08-31 21:35:22,246 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 [2023-08-31 21:35:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:35:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:35:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:35:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:35:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:35:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:35:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:35:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:35:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:35:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:35:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:35:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:35:22,271 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:35:22,366 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:35:22,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:35:22,655 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:35:22,662 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:35:22,662 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 21:35:22,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:35:22 BoogieIcfgContainer [2023-08-31 21:35:22,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:35:22,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:35:22,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:35:22,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:35:22,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:35:21" (1/3) ... [2023-08-31 21:35:22,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5699b315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:35:22, skipping insertion in model container [2023-08-31 21:35:22,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:35:22" (2/3) ... [2023-08-31 21:35:22,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5699b315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:35:22, skipping insertion in model container [2023-08-31 21:35:22,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:35:22" (3/3) ... [2023-08-31 21:35:22,669 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2023-08-31 21:35:22,674 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:35:22,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:35:22,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-31 21:35:22,680 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:35:22,781 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:35:22,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 252 transitions, 520 flow [2023-08-31 21:35:22,864 INFO L130 PetriNetUnfolder]: 14/250 cut-off events. [2023-08-31 21:35:22,864 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:35:22,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 250 events. 14/250 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 444 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2023-08-31 21:35:22,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 252 transitions, 520 flow [2023-08-31 21:35:22,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 232 transitions, 476 flow [2023-08-31 21:35:22,876 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:35:22,881 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 232 transitions, 476 flow [2023-08-31 21:35:22,883 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 232 transitions, 476 flow [2023-08-31 21:35:22,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 232 transitions, 476 flow [2023-08-31 21:35:22,909 INFO L130 PetriNetUnfolder]: 12/232 cut-off events. [2023-08-31 21:35:22,910 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:35:22,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 232 events. 12/232 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 432 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2023-08-31 21:35:22,914 INFO L119 LiptonReduction]: Number of co-enabled transitions 9396 [2023-08-31 21:35:26,872 INFO L134 LiptonReduction]: Checked pairs total: 25729 [2023-08-31 21:35:26,873 INFO L136 LiptonReduction]: Total number of compositions: 245 [2023-08-31 21:35:26,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:35:26,906 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;@4305b351, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:35:26,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-31 21:35:26,909 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:35:26,909 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:35:26,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:26,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:35:26,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:26,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:26,917 INFO L85 PathProgramCache]: Analyzing trace with hash 929, now seen corresponding path program 1 times [2023-08-31 21:35:26,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:26,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265768695] [2023-08-31 21:35:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:26,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:35:27,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:27,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265768695] [2023-08-31 21:35:27,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265768695] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:27,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:27,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:35:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224998974] [2023-08-31 21:35:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:27,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:35:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:35:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:35:27,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 497 [2023-08-31 21:35:27,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 58 transitions, 128 flow. Second operand has 2 states, 2 states have (on average 240.5) internal successors, (481), 2 states have internal predecessors, (481), 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) [2023-08-31 21:35:27,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:27,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 497 [2023-08-31 21:35:27,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:27,190 INFO L130 PetriNetUnfolder]: 161/357 cut-off events. [2023-08-31 21:35:27,190 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-31 21:35:27,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 357 events. 161/357 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1873 event pairs, 105 based on Foata normal form. 10/276 useless extension candidates. Maximal degree in co-relation 570. Up to 260 conditions per place. [2023-08-31 21:35:27,198 INFO L137 encePairwiseOnDemand]: 482/497 looper letters, 21 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-08-31 21:35:27,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 142 flow [2023-08-31 21:35:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:35:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:35:27,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 517 transitions. [2023-08-31 21:35:27,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5201207243460765 [2023-08-31 21:35:27,212 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 517 transitions. [2023-08-31 21:35:27,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 517 transitions. [2023-08-31 21:35:27,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:27,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 517 transitions. [2023-08-31 21:35:27,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 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) [2023-08-31 21:35:27,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 497.0) internal successors, (1491), 3 states have internal predecessors, (1491), 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) [2023-08-31 21:35:27,225 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 497.0) internal successors, (1491), 3 states have internal predecessors, (1491), 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) [2023-08-31 21:35:27,227 INFO L175 Difference]: Start difference. First operand has 60 places, 58 transitions, 128 flow. Second operand 2 states and 517 transitions. [2023-08-31 21:35:27,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 142 flow [2023-08-31 21:35:27,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:35:27,240 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 87 flow [2023-08-31 21:35:27,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=497, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-08-31 21:35:27,247 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-08-31 21:35:27,247 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 87 flow [2023-08-31 21:35:27,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 240.5) internal successors, (481), 2 states have internal predecessors, (481), 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) [2023-08-31 21:35:27,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:27,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 21:35:27,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:35:27,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:27,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash 28843116, now seen corresponding path program 1 times [2023-08-31 21:35:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:27,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095587606] [2023-08-31 21:35:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:27,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:35:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:27,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095587606] [2023-08-31 21:35:27,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095587606] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:27,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:27,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:27,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787776808] [2023-08-31 21:35:27,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:27,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:27,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:27,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:27,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 497 [2023-08-31 21:35:27,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 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) [2023-08-31 21:35:27,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:27,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 497 [2023-08-31 21:35:27,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:27,442 INFO L130 PetriNetUnfolder]: 289/582 cut-off events. [2023-08-31 21:35:27,442 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 21:35:27,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 582 events. 289/582 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2850 event pairs, 114 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 1059. Up to 457 conditions per place. [2023-08-31 21:35:27,445 INFO L137 encePairwiseOnDemand]: 491/497 looper letters, 31 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2023-08-31 21:35:27,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 166 flow [2023-08-31 21:35:27,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-31 21:35:27,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4875922199865862 [2023-08-31 21:35:27,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-31 21:35:27,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-31 21:35:27,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:27,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-31 21:35:27,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 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) [2023-08-31 21:35:27,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,455 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 87 flow. Second operand 3 states and 727 transitions. [2023-08-31 21:35:27,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 166 flow [2023-08-31 21:35:27,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:27,456 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 102 flow [2023-08-31 21:35:27,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=497, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2023-08-31 21:35:27,457 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-08-31 21:35:27,457 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 102 flow [2023-08-31 21:35:27,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 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) [2023-08-31 21:35:27,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:27,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:35:27,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:35:27,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:27,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1956808166, now seen corresponding path program 1 times [2023-08-31 21:35:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631883596] [2023-08-31 21:35:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:27,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:35:27,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:27,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631883596] [2023-08-31 21:35:27,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631883596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:27,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:27,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681063453] [2023-08-31 21:35:27,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:27,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:27,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:27,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 497 [2023-08-31 21:35:27,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2023-08-31 21:35:27,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:27,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 497 [2023-08-31 21:35:27,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:27,575 INFO L130 PetriNetUnfolder]: 194/431 cut-off events. [2023-08-31 21:35:27,575 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 21:35:27,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 431 events. 194/431 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2181 event pairs, 48 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 783. Up to 302 conditions per place. [2023-08-31 21:35:27,578 INFO L137 encePairwiseOnDemand]: 491/497 looper letters, 25 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2023-08-31 21:35:27,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 165 flow [2023-08-31 21:35:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 721 transitions. [2023-08-31 21:35:27,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4835680751173709 [2023-08-31 21:35:27,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 721 transitions. [2023-08-31 21:35:27,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 721 transitions. [2023-08-31 21:35:27,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:27,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 721 transitions. [2023-08-31 21:35:27,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 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) [2023-08-31 21:35:27,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,585 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 102 flow. Second operand 3 states and 721 transitions. [2023-08-31 21:35:27,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 165 flow [2023-08-31 21:35:27,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 165 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:27,586 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 117 flow [2023-08-31 21:35:27,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=497, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2023-08-31 21:35:27,587 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-08-31 21:35:27,587 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 117 flow [2023-08-31 21:35:27,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2023-08-31 21:35:27,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:27,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:35:27,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:35:27,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:27,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:27,588 INFO L85 PathProgramCache]: Analyzing trace with hash -140742467, now seen corresponding path program 1 times [2023-08-31 21:35:27,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:27,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356761020] [2023-08-31 21:35:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:27,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:35:27,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:27,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356761020] [2023-08-31 21:35:27,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356761020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:27,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:27,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:27,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316701707] [2023-08-31 21:35:27,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:27,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:27,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:27,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:27,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:27,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 497 [2023-08-31 21:35:27,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-31 21:35:27,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:27,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 497 [2023-08-31 21:35:27,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:27,728 INFO L130 PetriNetUnfolder]: 340/619 cut-off events. [2023-08-31 21:35:27,728 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-31 21:35:27,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 619 events. 340/619 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3124 event pairs, 90 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 1262. Up to 297 conditions per place. [2023-08-31 21:35:27,731 INFO L137 encePairwiseOnDemand]: 493/497 looper letters, 40 selfloop transitions, 2 changer transitions 3/59 dead transitions. [2023-08-31 21:35:27,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 59 transitions, 247 flow [2023-08-31 21:35:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:27,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:27,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2023-08-31 21:35:27,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49899396378269617 [2023-08-31 21:35:27,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2023-08-31 21:35:27,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2023-08-31 21:35:27,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:27,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2023-08-31 21:35:27,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2023-08-31 21:35:27,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,739 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 117 flow. Second operand 3 states and 744 transitions. [2023-08-31 21:35:27,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 59 transitions, 247 flow [2023-08-31 21:35:27,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 59 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:27,740 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 127 flow [2023-08-31 21:35:27,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=497, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-08-31 21:35:27,741 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-08-31 21:35:27,741 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 127 flow [2023-08-31 21:35:27,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-31 21:35:27,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:35:27,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:35:27,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:35:27,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:35:27,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:35:27,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2109505023, now seen corresponding path program 1 times [2023-08-31 21:35:27,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:35:27,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593006381] [2023-08-31 21:35:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:35:27,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:35:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:35:27,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:35:27,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:35:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593006381] [2023-08-31 21:35:27,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593006381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:35:27,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:35:27,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:35:27,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758128678] [2023-08-31 21:35:27,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:35:27,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:35:27,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:35:27,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:35:27,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:35:27,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 497 [2023-08-31 21:35:27,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-31 21:35:27,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:35:27,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 497 [2023-08-31 21:35:27,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:35:27,916 INFO L130 PetriNetUnfolder]: 321/597 cut-off events. [2023-08-31 21:35:27,916 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-08-31 21:35:27,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 597 events. 321/597 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2908 event pairs, 85 based on Foata normal form. 0/490 useless extension candidates. Maximal degree in co-relation 1271. Up to 302 conditions per place. [2023-08-31 21:35:27,918 INFO L137 encePairwiseOnDemand]: 493/497 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2023-08-31 21:35:27,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 251 flow [2023-08-31 21:35:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:35:27,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:35:27,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2023-08-31 21:35:27,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49765258215962443 [2023-08-31 21:35:27,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2023-08-31 21:35:27,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2023-08-31 21:35:27,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:35:27,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2023-08-31 21:35:27,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2023-08-31 21:35:27,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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) [2023-08-31 21:35:27,927 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 127 flow. Second operand 3 states and 742 transitions. [2023-08-31 21:35:27,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 251 flow [2023-08-31 21:35:27,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:35:27,931 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-31 21:35:27,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=497, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-31 21:35:27,934 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-08-31 21:35:27,934 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-31 21:35:27,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-31 21:35:27,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-31 21:35:27,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-31 21:35:27,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-31 21:35:27,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-31 21:35:27,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-31 21:35:27,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-31 21:35:27,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-31 21:35:27,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-31 21:35:27,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-31 21:35:27,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-31 21:35:27,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-31 21:35:27,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-31 21:35:27,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-31 21:35:27,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-31 21:35:27,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-31 21:35:27,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-31 21:35:27,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-31 21:35:27,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-31 21:35:27,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-31 21:35:27,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2023-08-31 21:35:27,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-31 21:35:27,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-31 21:35:27,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-31 21:35:27,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-31 21:35:27,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-31 21:35:27,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-31 21:35:27,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-31 21:35:27,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-31 21:35:27,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-31 21:35:27,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-31 21:35:27,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-31 21:35:27,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-31 21:35:27,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:35:27,953 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 21:35:27,957 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:35:27,957 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:35:27,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:35:27 BasicIcfg [2023-08-31 21:35:27,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:35:27,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:35:27,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:35:27,963 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:35:27,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:35:22" (3/4) ... [2023-08-31 21:35:27,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:35:27,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:35:27,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:35:27,978 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-31 21:35:27,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:35:27,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:35:27,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:35:28,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:35:28,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:35:28,031 INFO L158 Benchmark]: Toolchain (without parser) took 6054.79ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 55.6MB in the beginning and 63.1MB in the end (delta: -7.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2023-08-31 21:35:28,031 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:35:28,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.31ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 44.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 21:35:28,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.26ms. Allocated memory is still 77.6MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:35:28,032 INFO L158 Benchmark]: Boogie Preprocessor took 39.02ms. Allocated memory is still 77.6MB. Free memory was 41.7MB in the beginning and 40.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:35:28,032 INFO L158 Benchmark]: RCFGBuilder took 453.30ms. Allocated memory is still 77.6MB. Free memory was 40.0MB in the beginning and 38.9MB in the end (delta: 1.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-08-31 21:35:28,033 INFO L158 Benchmark]: TraceAbstraction took 5297.40ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 38.0MB in the beginning and 67.3MB in the end (delta: -29.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2023-08-31 21:35:28,033 INFO L158 Benchmark]: Witness Printer took 67.49ms. Allocated memory is still 113.2MB. Free memory was 67.3MB in the beginning and 63.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:35:28,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.31ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 44.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.26ms. Allocated memory is still 77.6MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.02ms. Allocated memory is still 77.6MB. Free memory was 41.7MB in the beginning and 40.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 453.30ms. Allocated memory is still 77.6MB. Free memory was 40.0MB in the beginning and 38.9MB in the end (delta: 1.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5297.40ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 38.0MB in the beginning and 67.3MB in the end (delta: -29.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 67.49ms. Allocated memory is still 113.2MB. Free memory was 67.3MB in the beginning and 63.1MB in the end (delta: 4.2MB). 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: 4.0s, 227 PlacesBefore, 60 PlacesAfterwards, 232 TransitionsBefore, 58 TransitionsAfterwards, 9396 CoEnabledTransitionPairs, 8 FixpointIterations, 110 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 26 ConcurrentYvCompositions, 7 ChoiceCompositions, 245 TotalNumberOfCompositions, 25729 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15246, independent: 14702, independent conditional: 0, independent unconditional: 14702, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5461, independent: 5406, independent conditional: 0, independent unconditional: 5406, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15246, independent: 9296, independent conditional: 0, independent unconditional: 9296, dependent: 489, dependent conditional: 0, dependent unconditional: 489, unknown: 5461, unknown conditional: 0, unknown unconditional: 5461] , Statistics on independence cache: Total cache size (in pairs): 419, Positive cache size: 388, Positive conditional cache size: 0, Positive unconditional cache size: 388, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: 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 5 procedures, 343 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 20 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:35:28,052 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