./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:08:00,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:08:00,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:08:00,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:08:00,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:08:00,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:08:00,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:08:00,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:08:00,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:08:00,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:08:00,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:08:00,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:08:00,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:08:00,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:08:00,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:08:00,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:08:00,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:08:00,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:08:00,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:08:00,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:08:00,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:08:00,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:08:00,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:08:00,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:08:00,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:08:00,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:08:00,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:08:00,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:08:00,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:08:00,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:08:00,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:08:00,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:08:00,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:08:00,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:08:00,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:08:00,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:08:00,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:08:00,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:08:00,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:08:00,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:08:00,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:08:00,081 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:08:00,096 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:08:00,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:08:00,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:08:00,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:08:00,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:08:00,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:08:00,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:08:00,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:08:00,098 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:08:00,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:08:00,098 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:08:00,098 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:08:00,099 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:08:00,100 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:08:00,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:08:00,100 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:08:00,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:08:00,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:08:00,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:08:00,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:08:00,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:08:00,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:08:00,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:08:00,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:08:00,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:08:00,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:08:00,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:08:00,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:08:00,102 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:08:00,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:08:00,102 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:08:00,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:08:00,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:08:00,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:08:00,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:08:00,349 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:08:00,350 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:08:00,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.i [2023-08-29 02:08:01,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:08:01,491 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:08:01,492 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.i [2023-08-29 02:08:01,504 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86da49999/96d03176438f4eddb22671c7b75420fb/FLAGf35c3376d [2023-08-29 02:08:01,520 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86da49999/96d03176438f4eddb22671c7b75420fb [2023-08-29 02:08:01,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:08:01,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:08:01,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:08:01,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:08:01,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:08:01,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:01,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af6ded4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01, skipping insertion in model container [2023-08-29 02:08:01,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:01,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:08:01,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:08:01,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:08:01,898 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:08:01,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:08:01,963 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:08:01,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01 WrapperNode [2023-08-29 02:08:01,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:08:01,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:08:01,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:08:01,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:08:01,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:01,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:01,995 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-08-29 02:08:01,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:08:02,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:08:02,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:08:02,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:08:02,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:08:02,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:08:02,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:08:02,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:08:02,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (1/1) ... [2023-08-29 02:08:02,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:08:02,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:02,051 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 02:08:02,053 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 02:08:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:08:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:08:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:08:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:08:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:08:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:08:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:08:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:08:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:08:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:08:02,088 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 02:08:02,219 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:08:02,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:08:02,404 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:08:02,417 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:08:02,418 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 02:08:02,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:02 BoogieIcfgContainer [2023-08-29 02:08:02,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:08:02,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:08:02,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:08:02,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:08:02,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:08:01" (1/3) ... [2023-08-29 02:08:02,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d34729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:08:02, skipping insertion in model container [2023-08-29 02:08:02,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:01" (2/3) ... [2023-08-29 02:08:02,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d34729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:08:02, skipping insertion in model container [2023-08-29 02:08:02,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:02" (3/3) ... [2023-08-29 02:08:02,427 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2023-08-29 02:08:02,432 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:08:02,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:08:02,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 02:08:02,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:08:02,523 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:08:02,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 101 transitions, 207 flow [2023-08-29 02:08:02,602 INFO L130 PetriNetUnfolder]: 4/100 cut-off events. [2023-08-29 02:08:02,602 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:02,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-29 02:08:02,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 101 transitions, 207 flow [2023-08-29 02:08:02,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 100 transitions, 203 flow [2023-08-29 02:08:02,612 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:08:02,621 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 100 transitions, 203 flow [2023-08-29 02:08:02,624 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 100 transitions, 203 flow [2023-08-29 02:08:02,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 100 transitions, 203 flow [2023-08-29 02:08:02,653 INFO L130 PetriNetUnfolder]: 4/100 cut-off events. [2023-08-29 02:08:02,653 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:02,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-29 02:08:02,655 INFO L119 LiptonReduction]: Number of co-enabled transitions 2262 [2023-08-29 02:08:04,129 INFO L134 LiptonReduction]: Checked pairs total: 9365 [2023-08-29 02:08:04,129 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-29 02:08:04,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:08:04,144 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;@136cc0e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:08:04,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 02:08:04,149 INFO L130 PetriNetUnfolder]: 2/18 cut-off events. [2023-08-29 02:08:04,149 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:04,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:04,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:04,150 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:04,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:04,155 INFO L85 PathProgramCache]: Analyzing trace with hash -628209357, now seen corresponding path program 1 times [2023-08-29 02:08:04,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:04,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535011879] [2023-08-29 02:08:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:04,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:04,300 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 02:08:04,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:04,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535011879] [2023-08-29 02:08:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535011879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:04,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:04,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:08:04,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602669765] [2023-08-29 02:08:04,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:04,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:08:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:08:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:08:04,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 176 [2023-08-29 02:08:04,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:04,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:04,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 176 [2023-08-29 02:08:04,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:04,380 INFO L130 PetriNetUnfolder]: 37/165 cut-off events. [2023-08-29 02:08:04,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:04,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 630 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place. [2023-08-29 02:08:04,382 INFO L137 encePairwiseOnDemand]: 172/176 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-29 02:08:04,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-08-29 02:08:04,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:08:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:08:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-29 02:08:04,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394 [2023-08-29 02:08:04,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-29 02:08:04,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-29 02:08:04,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:04,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-29 02:08:04,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:04,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 02:08:04,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 02:08:04,407 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 79 flow. Second operand 3 states and 298 transitions. [2023-08-29 02:08:04,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-08-29 02:08:04,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:04,410 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-29 02:08:04,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-29 02:08:04,413 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-29 02:08:04,414 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-29 02:08:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:04,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:04,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:04,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:08:04,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:04,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash -369379357, now seen corresponding path program 1 times [2023-08-29 02:08:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:04,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248389572] [2023-08-29 02:08:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:04,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:04,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248389572] [2023-08-29 02:08:04,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248389572] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:08:04,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303164678] [2023-08-29 02:08:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:04,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:08:04,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:04,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:08:04,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:08:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:04,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:08:04,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:08:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:04,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:08:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:04,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303164678] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:08:04,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:08:04,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 02:08:04,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125531682] [2023-08-29 02:08:04,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:08:04,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:04,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:04,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:04,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:04,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 176 [2023-08-29 02:08:04,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 02:08:04,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:04,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 176 [2023-08-29 02:08:04,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:04,724 INFO L130 PetriNetUnfolder]: 37/168 cut-off events. [2023-08-29 02:08:04,724 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:04,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place. [2023-08-29 02:08:04,725 INFO L137 encePairwiseOnDemand]: 173/176 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-29 02:08:04,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-08-29 02:08:04,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:04,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2023-08-29 02:08:04,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5445075757575758 [2023-08-29 02:08:04,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2023-08-29 02:08:04,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2023-08-29 02:08:04,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:04,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2023-08-29 02:08:04,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 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 02:08:04,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:04,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:04,733 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 575 transitions. [2023-08-29 02:08:04,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-08-29 02:08:04,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:04,735 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-29 02:08:04,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-29 02:08:04,735 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2023-08-29 02:08:04,735 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-29 02:08:04,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 02:08:04,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:04,736 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:04,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 02:08:04,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:08:04,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:04,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:04,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1157557643, now seen corresponding path program 2 times [2023-08-29 02:08:04,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:04,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625867412] [2023-08-29 02:08:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:04,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:05,267 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:08:05,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:05,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625867412] [2023-08-29 02:08:05,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625867412] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:05,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:05,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:05,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013969158] [2023-08-29 02:08:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:05,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:05,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:05,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:05,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 176 [2023-08-29 02:08:05,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 02:08:05,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:05,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 176 [2023-08-29 02:08:05,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:05,597 INFO L130 PetriNetUnfolder]: 209/519 cut-off events. [2023-08-29 02:08:05,597 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 02:08:05,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 519 events. 209/519 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2543 event pairs, 86 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 982. Up to 259 conditions per place. [2023-08-29 02:08:05,603 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 67 selfloop transitions, 22 changer transitions 0/97 dead transitions. [2023-08-29 02:08:05,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 410 flow [2023-08-29 02:08:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2023-08-29 02:08:05,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2023-08-29 02:08:05,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2023-08-29 02:08:05,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2023-08-29 02:08:05,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:05,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2023-08-29 02:08:05,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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 02:08:05,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:05,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:05,609 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 560 transitions. [2023-08-29 02:08:05,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 410 flow [2023-08-29 02:08:05,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 396 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:05,612 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 250 flow [2023-08-29 02:08:05,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=56, PETRI_TRANSITIONS=62} [2023-08-29 02:08:05,614 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 16 predicate places. [2023-08-29 02:08:05,614 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 250 flow [2023-08-29 02:08:05,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 02:08:05,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:05,614 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:05,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:08:05,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:05,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:05,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1092228275, now seen corresponding path program 1 times [2023-08-29 02:08:05,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345069921] [2023-08-29 02:08:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:05,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:08:05,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:05,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345069921] [2023-08-29 02:08:05,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345069921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:05,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:05,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:05,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084057260] [2023-08-29 02:08:05,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:05,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:05,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:05,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 176 [2023-08-29 02:08:05,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 02:08:05,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:05,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 176 [2023-08-29 02:08:05,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:06,089 INFO L130 PetriNetUnfolder]: 242/649 cut-off events. [2023-08-29 02:08:06,090 INFO L131 PetriNetUnfolder]: For 143/144 co-relation queries the response was YES. [2023-08-29 02:08:06,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 649 events. 242/649 cut-off events. For 143/144 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3781 event pairs, 105 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 1466. Up to 371 conditions per place. [2023-08-29 02:08:06,092 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 73 selfloop transitions, 26 changer transitions 0/115 dead transitions. [2023-08-29 02:08:06,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 115 transitions, 574 flow [2023-08-29 02:08:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2023-08-29 02:08:06,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5255681818181818 [2023-08-29 02:08:06,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2023-08-29 02:08:06,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2023-08-29 02:08:06,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:06,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2023-08-29 02:08:06,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:08:06,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:06,098 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:06,098 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 250 flow. Second operand 6 states and 555 transitions. [2023-08-29 02:08:06,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 115 transitions, 574 flow [2023-08-29 02:08:06,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 115 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:06,101 INFO L231 Difference]: Finished difference. Result has 65 places, 84 transitions, 428 flow [2023-08-29 02:08:06,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=65, PETRI_TRANSITIONS=84} [2023-08-29 02:08:06,102 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2023-08-29 02:08:06,102 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 84 transitions, 428 flow [2023-08-29 02:08:06,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 02:08:06,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:06,103 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:08:06,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:06,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash 547459376, now seen corresponding path program 1 times [2023-08-29 02:08:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:06,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3210795] [2023-08-29 02:08:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:06,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:06,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3210795] [2023-08-29 02:08:06,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3210795] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:08:06,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449906582] [2023-08-29 02:08:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:06,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:08:06,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:06,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:08:06,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:08:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:06,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:08:06,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:08:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:06,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:08:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:08:06,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449906582] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:08:06,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:08:06,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-29 02:08:06,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159152394] [2023-08-29 02:08:06,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:08:06,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:08:06,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:06,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:08:06,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:08:06,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 176 [2023-08-29 02:08:06,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 84 transitions, 428 flow. Second operand has 12 states, 12 states have (on average 93.41666666666667) internal successors, (1121), 12 states have internal predecessors, (1121), 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 02:08:06,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:06,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 176 [2023-08-29 02:08:06,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:06,367 INFO L130 PetriNetUnfolder]: 132/486 cut-off events. [2023-08-29 02:08:06,367 INFO L131 PetriNetUnfolder]: For 241/248 co-relation queries the response was YES. [2023-08-29 02:08:06,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 486 events. 132/486 cut-off events. For 241/248 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3052 event pairs, 59 based on Foata normal form. 6/479 useless extension candidates. Maximal degree in co-relation 1195. Up to 227 conditions per place. [2023-08-29 02:08:06,369 INFO L137 encePairwiseOnDemand]: 173/176 looper letters, 35 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2023-08-29 02:08:06,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 90 transitions, 556 flow [2023-08-29 02:08:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:08:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:08:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1136 transitions. [2023-08-29 02:08:06,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5378787878787878 [2023-08-29 02:08:06,372 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1136 transitions. [2023-08-29 02:08:06,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1136 transitions. [2023-08-29 02:08:06,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:06,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1136 transitions. [2023-08-29 02:08:06,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.66666666666667) internal successors, (1136), 12 states have internal predecessors, (1136), 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 02:08:06,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 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 02:08:06,377 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 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 02:08:06,377 INFO L175 Difference]: Start difference. First operand has 65 places, 84 transitions, 428 flow. Second operand 12 states and 1136 transitions. [2023-08-29 02:08:06,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 90 transitions, 556 flow [2023-08-29 02:08:06,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:06,380 INFO L231 Difference]: Finished difference. Result has 82 places, 90 transitions, 512 flow [2023-08-29 02:08:06,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=512, PETRI_PLACES=82, PETRI_TRANSITIONS=90} [2023-08-29 02:08:06,381 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 42 predicate places. [2023-08-29 02:08:06,381 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 90 transitions, 512 flow [2023-08-29 02:08:06,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 93.41666666666667) internal successors, (1121), 12 states have internal predecessors, (1121), 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 02:08:06,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:06,382 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:06,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:08:06,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:08:06,588 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:06,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:06,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1366035056, now seen corresponding path program 2 times [2023-08-29 02:08:06,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:06,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427729878] [2023-08-29 02:08:06,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:06,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:06,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:06,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427729878] [2023-08-29 02:08:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427729878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:06,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:06,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:06,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269291870] [2023-08-29 02:08:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:06,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:06,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 176 [2023-08-29 02:08:06,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 90 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 02:08:06,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:06,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 176 [2023-08-29 02:08:06,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:07,099 INFO L130 PetriNetUnfolder]: 470/1115 cut-off events. [2023-08-29 02:08:07,099 INFO L131 PetriNetUnfolder]: For 779/798 co-relation queries the response was YES. [2023-08-29 02:08:07,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 1115 events. 470/1115 cut-off events. For 779/798 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6444 event pairs, 146 based on Foata normal form. 1/1071 useless extension candidates. Maximal degree in co-relation 3188. Up to 681 conditions per place. [2023-08-29 02:08:07,105 INFO L137 encePairwiseOnDemand]: 161/176 looper letters, 129 selfloop transitions, 59 changer transitions 2/194 dead transitions. [2023-08-29 02:08:07,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 194 transitions, 1357 flow [2023-08-29 02:08:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-29 02:08:07,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2023-08-29 02:08:07,107 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-29 02:08:07,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-29 02:08:07,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:07,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-29 02:08:07,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 02:08:07,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:07,111 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:07,111 INFO L175 Difference]: Start difference. First operand has 82 places, 90 transitions, 512 flow. Second operand 6 states and 540 transitions. [2023-08-29 02:08:07,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 194 transitions, 1357 flow [2023-08-29 02:08:07,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 194 transitions, 1309 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-29 02:08:07,117 INFO L231 Difference]: Finished difference. Result has 86 places, 142 transitions, 982 flow [2023-08-29 02:08:07,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=982, PETRI_PLACES=86, PETRI_TRANSITIONS=142} [2023-08-29 02:08:07,119 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 46 predicate places. [2023-08-29 02:08:07,119 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 142 transitions, 982 flow [2023-08-29 02:08:07,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 02:08:07,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:07,120 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:07,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:08:07,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:07,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1630893388, now seen corresponding path program 1 times [2023-08-29 02:08:07,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:07,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647644196] [2023-08-29 02:08:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647644196] [2023-08-29 02:08:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647644196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:07,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42006636] [2023-08-29 02:08:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:07,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:07,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:07,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:07,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:07,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 176 [2023-08-29 02:08:07,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 142 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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 02:08:07,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:07,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 176 [2023-08-29 02:08:07,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:07,759 INFO L130 PetriNetUnfolder]: 622/1452 cut-off events. [2023-08-29 02:08:07,759 INFO L131 PetriNetUnfolder]: For 2091/2114 co-relation queries the response was YES. [2023-08-29 02:08:07,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5150 conditions, 1452 events. 622/1452 cut-off events. For 2091/2114 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9026 event pairs, 128 based on Foata normal form. 3/1390 useless extension candidates. Maximal degree in co-relation 5085. Up to 830 conditions per place. [2023-08-29 02:08:07,766 INFO L137 encePairwiseOnDemand]: 161/176 looper letters, 149 selfloop transitions, 75 changer transitions 38/271 dead transitions. [2023-08-29 02:08:07,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 271 transitions, 2213 flow [2023-08-29 02:08:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 539 transitions. [2023-08-29 02:08:07,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2023-08-29 02:08:07,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 539 transitions. [2023-08-29 02:08:07,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 539 transitions. [2023-08-29 02:08:07,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:07,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 539 transitions. [2023-08-29 02:08:07,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 02:08:07,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:07,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 02:08:07,771 INFO L175 Difference]: Start difference. First operand has 86 places, 142 transitions, 982 flow. Second operand 6 states and 539 transitions. [2023-08-29 02:08:07,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 271 transitions, 2213 flow [2023-08-29 02:08:07,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 271 transitions, 2145 flow, removed 34 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:07,782 INFO L231 Difference]: Finished difference. Result has 95 places, 187 transitions, 1500 flow [2023-08-29 02:08:07,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1500, PETRI_PLACES=95, PETRI_TRANSITIONS=187} [2023-08-29 02:08:07,782 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 55 predicate places. [2023-08-29 02:08:07,783 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 187 transitions, 1500 flow [2023-08-29 02:08:07,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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 02:08:07,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:07,783 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:07,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:08:07,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:08:07,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash 827926639, now seen corresponding path program 1 times [2023-08-29 02:08:07,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:07,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447397313] [2023-08-29 02:08:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:07,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:08:07,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:08:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:08:07,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:08:07,834 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:08:07,834 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 02:08:07,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 02:08:07,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-29 02:08:07,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-29 02:08:07,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 02:08:07,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 02:08:07,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 02:08:07,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:08:07,836 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-08-29 02:08:07,840 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:08:07,840 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:08:07,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:08:07 BasicIcfg [2023-08-29 02:08:07,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:08:07,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:08:07,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:08:07,865 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:08:07,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:02" (3/4) ... [2023-08-29 02:08:07,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 02:08:07,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:08:07,868 INFO L158 Benchmark]: Toolchain (without parser) took 6344.59ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 71.1MB in the beginning and 90.7MB in the end (delta: -19.6MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2023-08-29 02:08:07,868 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:08:07,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.10ms. Allocated memory is still 96.5MB. Free memory was 70.8MB in the beginning and 43.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-08-29 02:08:07,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.74ms. Allocated memory is still 96.5MB. Free memory was 43.0MB in the beginning and 40.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 02:08:07,869 INFO L158 Benchmark]: Boogie Preprocessor took 19.89ms. Allocated memory is still 96.5MB. Free memory was 40.2MB in the beginning and 38.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:08:07,869 INFO L158 Benchmark]: RCFGBuilder took 397.67ms. Allocated memory is still 96.5MB. Free memory was 38.5MB in the beginning and 61.2MB in the end (delta: -22.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-08-29 02:08:07,869 INFO L158 Benchmark]: TraceAbstraction took 5442.82ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 60.7MB in the beginning and 90.7MB in the end (delta: -30.1MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2023-08-29 02:08:07,870 INFO L158 Benchmark]: Witness Printer took 2.55ms. Allocated memory is still 172.0MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:08:07,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.10ms. Allocated memory is still 96.5MB. Free memory was 70.8MB in the beginning and 43.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.74ms. Allocated memory is still 96.5MB. Free memory was 43.0MB in the beginning and 40.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.89ms. Allocated memory is still 96.5MB. Free memory was 40.2MB in the beginning and 38.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.67ms. Allocated memory is still 96.5MB. Free memory was 38.5MB in the beginning and 61.2MB in the end (delta: -22.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5442.82ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 60.7MB in the beginning and 90.7MB in the end (delta: -30.1MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * Witness Printer took 2.55ms. Allocated memory is still 172.0MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 100 PlacesBefore, 40 PlacesAfterwards, 100 TransitionsBefore, 38 TransitionsAfterwards, 2262 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 9365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2861, independent: 2460, independent conditional: 0, independent unconditional: 2460, dependent: 401, dependent conditional: 0, dependent unconditional: 401, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1102, independent: 1047, independent conditional: 0, independent unconditional: 1047, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2861, independent: 1413, independent conditional: 0, independent unconditional: 1413, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 1102, unknown conditional: 0, unknown unconditional: 1102] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) [L939] 0 int i = __VERIFIER_nondet_int(); [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=1, i=10, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={5:0}] [L927] 1 int i = __VERIFIER_nondet_int(); [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; [L931] 1 i++ [L932] EXPR 1 a[i].datum VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum++=0, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] Now there is a data race (on the heap) between C: a[i].datum++ [932] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 138 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 581 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1397 IncrementalHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 4 mSDtfsCounter, 1397 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1500occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 130/163 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 02:08:07,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE