./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:12:59,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:12:59,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:12:59,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:12:59,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:12:59,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:12:59,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:12:59,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:12:59,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:12:59,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:12:59,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:12:59,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:12:59,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:12:59,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:12:59,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:12:59,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:12:59,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:12:59,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:12:59,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:12:59,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:12:59,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:12:59,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:12:59,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:12:59,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:12:59,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:12:59,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:12:59,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:12:59,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:12:59,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:12:59,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:12:59,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:12:59,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:12:59,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:12:59,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:12:59,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:12:59,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:12:59,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:12:59,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:12:59,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:12:59,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:12:59,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:12:59,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:12:59,992 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:12:59,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:12:59,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:12:59,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:12:59,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:12:59,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:12:59,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:12:59,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:12:59,995 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:12:59,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:12:59,996 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:12:59,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:12:59,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:12:59,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:12:59,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:12:59,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:12:59,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:12:59,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:12:59,998 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:12:59,998 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:12:59,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:12:59,998 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:12:59,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:12:59,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:12:59,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:12:59,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:12:59,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:12:59,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:13:00,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:13:00,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:13:00,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:13:00,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:13:00,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:13:00,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:13:00,001 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:13:00,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:13:00,001 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:13:00,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:13:00,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:13:00,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:13:00,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:13:00,356 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:13:00,357 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:13:00,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c [2023-08-29 19:13:01,560 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:13:01,779 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:13:01,779 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c [2023-08-29 19:13:01,784 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fceebc15/27d6338f7b304380b2c5c3b47bd6f00f/FLAGb1ddefe77 [2023-08-29 19:13:01,796 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fceebc15/27d6338f7b304380b2c5c3b47bd6f00f [2023-08-29 19:13:01,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:13:01,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:13:01,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:13:01,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:13:01,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:13:01,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:01" (1/1) ... [2023-08-29 19:13:01,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b51540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:01, skipping insertion in model container [2023-08-29 19:13:01,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:01" (1/1) ... [2023-08-29 19:13:01,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:13:01,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:13:02,033 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2023-08-29 19:13:02,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:13:02,049 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:13:02,089 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2023-08-29 19:13:02,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:13:02,108 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:13:02,109 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:13:02,114 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:13:02,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02 WrapperNode [2023-08-29 19:13:02,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:13:02,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:13:02,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:13:02,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:13:02,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,179 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 165 [2023-08-29 19:13:02,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:13:02,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:13:02,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:13:02,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:13:02,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,235 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:13:02,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:13:02,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:13:02,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:13:02,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (1/1) ... [2023-08-29 19:13:02,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:13:02,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:13:02,277 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 19:13:02,301 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 19:13:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:13:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:13:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:13:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:13:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:13:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 19:13:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 19:13:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:13:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:13:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:13:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:13:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:13:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 19:13:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:13:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:13:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:13:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:13:02,315 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 19:13:02,413 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:13:02,415 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:13:03,002 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:13:03,144 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:13:03,145 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 19:13:03,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:03 BoogieIcfgContainer [2023-08-29 19:13:03,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:13:03,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:13:03,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:13:03,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:13:03,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:13:01" (1/3) ... [2023-08-29 19:13:03,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7e8265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:03, skipping insertion in model container [2023-08-29 19:13:03,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:02" (2/3) ... [2023-08-29 19:13:03,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7e8265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:03, skipping insertion in model container [2023-08-29 19:13:03,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:03" (3/3) ... [2023-08-29 19:13:03,154 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2023-08-29 19:13:03,168 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:13:03,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:13:03,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-08-29 19:13:03,175 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:13:03,234 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 19:13:03,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 251 transitions, 526 flow [2023-08-29 19:13:03,384 INFO L130 PetriNetUnfolder]: 14/248 cut-off events. [2023-08-29 19:13:03,385 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:13:03,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 248 events. 14/248 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 291 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-08-29 19:13:03,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 251 transitions, 526 flow [2023-08-29 19:13:03,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 227 transitions, 472 flow [2023-08-29 19:13:03,405 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:13:03,416 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 227 transitions, 472 flow [2023-08-29 19:13:03,420 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 227 transitions, 472 flow [2023-08-29 19:13:03,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 227 transitions, 472 flow [2023-08-29 19:13:03,478 INFO L130 PetriNetUnfolder]: 12/227 cut-off events. [2023-08-29 19:13:03,479 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:13:03,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 227 events. 12/227 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 281 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-08-29 19:13:03,487 INFO L119 LiptonReduction]: Number of co-enabled transitions 5292 [2023-08-29 19:13:12,271 INFO L134 LiptonReduction]: Checked pairs total: 35094 [2023-08-29 19:13:12,271 INFO L136 LiptonReduction]: Total number of compositions: 224 [2023-08-29 19:13:12,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:13:12,292 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;@4418bc70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:13:12,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-08-29 19:13:12,294 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:13:12,294 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:13:12,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:12,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:13:12,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:12,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1084, now seen corresponding path program 1 times [2023-08-29 19:13:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:12,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442877248] [2023-08-29 19:13:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:12,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:12,377 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 19:13:12,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:12,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442877248] [2023-08-29 19:13:12,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442877248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:12,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:12,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:13:12,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741185131] [2023-08-29 19:13:12,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:12,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:13:12,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:12,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:13:12,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:13:12,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 475 [2023-08-29 19:13:12,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 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 19:13:12,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:12,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 475 [2023-08-29 19:13:12,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:12,605 INFO L130 PetriNetUnfolder]: 338/789 cut-off events. [2023-08-29 19:13:12,605 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2023-08-29 19:13:12,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 789 events. 338/789 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4583 event pairs, 177 based on Foata normal form. 161/829 useless extension candidates. Maximal degree in co-relation 996. Up to 466 conditions per place. [2023-08-29 19:13:12,615 INFO L137 encePairwiseOnDemand]: 441/475 looper letters, 21 selfloop transitions, 0 changer transitions 1/49 dead transitions. [2023-08-29 19:13:12,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 49 transitions, 160 flow [2023-08-29 19:13:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:13:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:13:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 486 transitions. [2023-08-29 19:13:12,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.511578947368421 [2023-08-29 19:13:12,632 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 486 transitions. [2023-08-29 19:13:12,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 486 transitions. [2023-08-29 19:13:12,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:12,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 486 transitions. [2023-08-29 19:13:12,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 243.0) internal successors, (486), 2 states have internal predecessors, (486), 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 19:13:12,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 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 19:13:12,646 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 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 19:13:12,648 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 184 flow. Second operand 2 states and 486 transitions. [2023-08-29 19:13:12,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 49 transitions, 160 flow [2023-08-29 19:13:12,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 148 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 19:13:12,655 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 101 flow [2023-08-29 19:13:12,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=101, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-08-29 19:13:12,662 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -36 predicate places. [2023-08-29 19:13:12,664 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 101 flow [2023-08-29 19:13:12,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 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 19:13:12,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:12,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 19:13:12,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:13:12,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:12,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:12,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2004336992, now seen corresponding path program 1 times [2023-08-29 19:13:12,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:12,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050858803] [2023-08-29 19:13:12,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:12,827 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 19:13:12,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:12,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050858803] [2023-08-29 19:13:12,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050858803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:12,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:12,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:12,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506920904] [2023-08-29 19:13:12,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:12,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:12,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:12,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:12,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:12,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 475 [2023-08-29 19:13:12,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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 19:13:12,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:12,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 475 [2023-08-29 19:13:12,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:12,990 INFO L130 PetriNetUnfolder]: 579/1109 cut-off events. [2023-08-29 19:13:12,991 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:13:12,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1941 conditions, 1109 events. 579/1109 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6104 event pairs, 364 based on Foata normal form. 0/923 useless extension candidates. Maximal degree in co-relation 1938. Up to 808 conditions per place. [2023-08-29 19:13:12,997 INFO L137 encePairwiseOnDemand]: 472/475 looper letters, 23 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2023-08-29 19:13:12,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 46 transitions, 145 flow [2023-08-29 19:13:12,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2023-08-29 19:13:12,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4435087719298246 [2023-08-29 19:13:13,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2023-08-29 19:13:13,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2023-08-29 19:13:13,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:13,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2023-08-29 19:13:13,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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 19:13:13,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 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 19:13:13,006 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 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 19:13:13,006 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 101 flow. Second operand 3 states and 632 transitions. [2023-08-29 19:13:13,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 46 transitions, 145 flow [2023-08-29 19:13:13,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 145 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:13:13,008 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 99 flow [2023-08-29 19:13:13,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2023-08-29 19:13:13,009 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -37 predicate places. [2023-08-29 19:13:13,009 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 99 flow [2023-08-29 19:13:13,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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 19:13:13,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:13,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:13:13,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:13,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1811063975, now seen corresponding path program 1 times [2023-08-29 19:13:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485958084] [2023-08-29 19:13:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:13,063 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 19:13:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:13,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485958084] [2023-08-29 19:13:13,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485958084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:13,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:13,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330909065] [2023-08-29 19:13:13,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:13,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:13,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:13,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:13,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:13,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 475 [2023-08-29 19:13:13,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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 19:13:13,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:13,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 475 [2023-08-29 19:13:13,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:13,218 INFO L130 PetriNetUnfolder]: 606/1103 cut-off events. [2023-08-29 19:13:13,218 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-29 19:13:13,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 1103 events. 606/1103 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5650 event pairs, 396 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1973. Up to 848 conditions per place. [2023-08-29 19:13:13,223 INFO L137 encePairwiseOnDemand]: 472/475 looper letters, 23 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2023-08-29 19:13:13,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 44 transitions, 143 flow [2023-08-29 19:13:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2023-08-29 19:13:13,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4435087719298246 [2023-08-29 19:13:13,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2023-08-29 19:13:13,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2023-08-29 19:13:13,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:13,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2023-08-29 19:13:13,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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 19:13:13,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 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 19:13:13,232 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 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 19:13:13,233 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 99 flow. Second operand 3 states and 632 transitions. [2023-08-29 19:13:13,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 44 transitions, 143 flow [2023-08-29 19:13:13,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:13,234 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 96 flow [2023-08-29 19:13:13,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2023-08-29 19:13:13,235 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -38 predicate places. [2023-08-29 19:13:13,235 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 96 flow [2023-08-29 19:13:13,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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 19:13:13,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:13,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:13,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:13:13,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:13,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash -9611303, now seen corresponding path program 1 times [2023-08-29 19:13:13,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:13,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675115015] [2023-08-29 19:13:13,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:13,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:13,390 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 19:13:13,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:13,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675115015] [2023-08-29 19:13:13,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675115015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:13,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:13,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:13,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581656431] [2023-08-29 19:13:13,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:13,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:13,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:13,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 475 [2023-08-29 19:13:13,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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 19:13:13,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:13,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 475 [2023-08-29 19:13:13,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:13,554 INFO L130 PetriNetUnfolder]: 338/763 cut-off events. [2023-08-29 19:13:13,555 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 19:13:13,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 763 events. 338/763 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4333 event pairs, 177 based on Foata normal form. 1/652 useless extension candidates. Maximal degree in co-relation 1243. Up to 465 conditions per place. [2023-08-29 19:13:13,559 INFO L137 encePairwiseOnDemand]: 472/475 looper letters, 20 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-29 19:13:13,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 45 transitions, 142 flow [2023-08-29 19:13:13,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2023-08-29 19:13:13,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45824561403508773 [2023-08-29 19:13:13,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 653 transitions. [2023-08-29 19:13:13,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 653 transitions. [2023-08-29 19:13:13,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:13,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 653 transitions. [2023-08-29 19:13:13,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 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 19:13:13,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 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 19:13:13,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 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 19:13:13,568 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 96 flow. Second operand 3 states and 653 transitions. [2023-08-29 19:13:13,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 45 transitions, 142 flow [2023-08-29 19:13:13,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:13,570 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 107 flow [2023-08-29 19:13:13,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2023-08-29 19:13:13,571 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -36 predicate places. [2023-08-29 19:13:13,571 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 107 flow [2023-08-29 19:13:13,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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 19:13:13,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:13,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:13,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:13:13,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:13,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash -160780951, now seen corresponding path program 1 times [2023-08-29 19:13:13,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:13,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964740999] [2023-08-29 19:13:13,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:13,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:13:13,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:13,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964740999] [2023-08-29 19:13:13,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964740999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:13,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:13,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:13,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174831687] [2023-08-29 19:13:13,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:13,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:13,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:13,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:13,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:14,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 475 [2023-08-29 19:13:14,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 204.16666666666666) internal successors, (1225), 6 states have internal predecessors, (1225), 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 19:13:14,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:14,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 475 [2023-08-29 19:13:14,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:14,481 INFO L130 PetriNetUnfolder]: 866/1264 cut-off events. [2023-08-29 19:13:14,482 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 19:13:14,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2426 conditions, 1264 events. 866/1264 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5782 event pairs, 62 based on Foata normal form. 0/1169 useless extension candidates. Maximal degree in co-relation 2421. Up to 432 conditions per place. [2023-08-29 19:13:14,489 INFO L137 encePairwiseOnDemand]: 470/475 looper letters, 54 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2023-08-29 19:13:14,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 76 transitions, 285 flow [2023-08-29 19:13:14,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:14,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:14,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1270 transitions. [2023-08-29 19:13:14,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4456140350877193 [2023-08-29 19:13:14,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1270 transitions. [2023-08-29 19:13:14,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1270 transitions. [2023-08-29 19:13:14,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:14,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1270 transitions. [2023-08-29 19:13:14,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.66666666666666) internal successors, (1270), 6 states have internal predecessors, (1270), 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 19:13:14,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 475.0) internal successors, (3325), 7 states have internal predecessors, (3325), 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 19:13:14,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 475.0) internal successors, (3325), 7 states have internal predecessors, (3325), 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 19:13:14,511 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 107 flow. Second operand 6 states and 1270 transitions. [2023-08-29 19:13:14,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 76 transitions, 285 flow [2023-08-29 19:13:14,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 76 transitions, 281 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:14,513 INFO L231 Difference]: Finished difference. Result has 53 places, 44 transitions, 109 flow [2023-08-29 19:13:14,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=109, PETRI_PLACES=53, PETRI_TRANSITIONS=44} [2023-08-29 19:13:14,514 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -33 predicate places. [2023-08-29 19:13:14,514 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 44 transitions, 109 flow [2023-08-29 19:13:14,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.16666666666666) internal successors, (1225), 6 states have internal predecessors, (1225), 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 19:13:14,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:14,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:14,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:13:14,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:14,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:14,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2087432853, now seen corresponding path program 1 times [2023-08-29 19:13:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591522725] [2023-08-29 19:13:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:14,611 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 19:13:14,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:14,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591522725] [2023-08-29 19:13:14,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591522725] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:13:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222189426] [2023-08-29 19:13:14,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:14,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:13:14,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:13:14,621 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 19:13:14,646 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 19:13:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:14,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 19:13:14,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:13:14,826 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 19:13:14,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:13:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:14,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222189426] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 19:13:14,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 19:13:14,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-08-29 19:13:14,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659963956] [2023-08-29 19:13:14,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:14,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 19:13:14,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:14,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 19:13:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 19:13:14,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 475 [2023-08-29 19:13:14,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 44 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 205.6) internal successors, (1028), 5 states have internal predecessors, (1028), 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 19:13:14,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:14,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 475 [2023-08-29 19:13:14,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:15,134 INFO L130 PetriNetUnfolder]: 393/876 cut-off events. [2023-08-29 19:13:15,134 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2023-08-29 19:13:15,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 876 events. 393/876 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4933 event pairs, 178 based on Foata normal form. 32/822 useless extension candidates. Maximal degree in co-relation 1607. Up to 437 conditions per place. [2023-08-29 19:13:15,139 INFO L137 encePairwiseOnDemand]: 470/475 looper letters, 31 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2023-08-29 19:13:15,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 207 flow [2023-08-29 19:13:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 19:13:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 19:13:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2023-08-29 19:13:15,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44252631578947366 [2023-08-29 19:13:15,142 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1051 transitions. [2023-08-29 19:13:15,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1051 transitions. [2023-08-29 19:13:15,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:15,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1051 transitions. [2023-08-29 19:13:15,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.2) internal successors, (1051), 5 states have internal predecessors, (1051), 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 19:13:15,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 475.0) internal successors, (2850), 6 states have internal predecessors, (2850), 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 19:13:15,149 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 475.0) internal successors, (2850), 6 states have internal predecessors, (2850), 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 19:13:15,149 INFO L175 Difference]: Start difference. First operand has 53 places, 44 transitions, 109 flow. Second operand 5 states and 1051 transitions. [2023-08-29 19:13:15,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 207 flow [2023-08-29 19:13:15,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:13:15,151 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 118 flow [2023-08-29 19:13:15,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2023-08-29 19:13:15,152 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -32 predicate places. [2023-08-29 19:13:15,152 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 118 flow [2023-08-29 19:13:15,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.6) internal successors, (1028), 5 states have internal predecessors, (1028), 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 19:13:15,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:15,153 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:15,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 19:13:15,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-29 19:13:15,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:15,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2044816863, now seen corresponding path program 1 times [2023-08-29 19:13:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:15,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111077323] [2023-08-29 19:13:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:15,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:13:15,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111077323] [2023-08-29 19:13:15,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111077323] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:15,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:15,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:15,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239670581] [2023-08-29 19:13:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:15,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:15,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:15,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:15,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 475 [2023-08-29 19:13:15,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 204.83333333333334) internal successors, (1229), 6 states have internal predecessors, (1229), 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 19:13:15,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:15,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 475 [2023-08-29 19:13:15,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:16,153 INFO L130 PetriNetUnfolder]: 421/799 cut-off events. [2023-08-29 19:13:16,154 INFO L131 PetriNetUnfolder]: For 106/163 co-relation queries the response was YES. [2023-08-29 19:13:16,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 799 events. 421/799 cut-off events. For 106/163 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4168 event pairs, 155 based on Foata normal form. 57/778 useless extension candidates. Maximal degree in co-relation 1577. Up to 382 conditions per place. [2023-08-29 19:13:16,158 INFO L137 encePairwiseOnDemand]: 470/475 looper letters, 47 selfloop transitions, 4 changer transitions 0/68 dead transitions. [2023-08-29 19:13:16,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 266 flow [2023-08-29 19:13:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2023-08-29 19:13:16,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44280701754385965 [2023-08-29 19:13:16,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2023-08-29 19:13:16,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2023-08-29 19:13:16,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:16,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2023-08-29 19:13:16,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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 19:13:16,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 475.0) internal successors, (3325), 7 states have internal predecessors, (3325), 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 19:13:16,175 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 475.0) internal successors, (3325), 7 states have internal predecessors, (3325), 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 19:13:16,176 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 118 flow. Second operand 6 states and 1262 transitions. [2023-08-29 19:13:16,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 266 flow [2023-08-29 19:13:16,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 68 transitions, 260 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 19:13:16,178 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 118 flow [2023-08-29 19:13:16,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2023-08-29 19:13:16,179 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -31 predicate places. [2023-08-29 19:13:16,179 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 118 flow [2023-08-29 19:13:16,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.83333333333334) internal successors, (1229), 6 states have internal predecessors, (1229), 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 19:13:16,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:16,180 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:16,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 19:13:16,181 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-29 19:13:16,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:16,181 INFO L85 PathProgramCache]: Analyzing trace with hash -333909994, now seen corresponding path program 1 times [2023-08-29 19:13:16,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:16,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215600462] [2023-08-29 19:13:16,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:16,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:13:16,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:16,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215600462] [2023-08-29 19:13:16,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215600462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:16,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:16,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:16,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245073118] [2023-08-29 19:13:16,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:16,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:16,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:16,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:16,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:16,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 475 [2023-08-29 19:13:16,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 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 19:13:16,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:16,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 475 [2023-08-29 19:13:16,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:16,962 INFO L130 PetriNetUnfolder]: 325/699 cut-off events. [2023-08-29 19:13:16,963 INFO L131 PetriNetUnfolder]: For 109/166 co-relation queries the response was YES. [2023-08-29 19:13:16,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 699 events. 325/699 cut-off events. For 109/166 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3714 event pairs, 175 based on Foata normal form. 57/690 useless extension candidates. Maximal degree in co-relation 1364. Up to 430 conditions per place. [2023-08-29 19:13:16,965 INFO L137 encePairwiseOnDemand]: 470/475 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2023-08-29 19:13:16,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 234 flow [2023-08-29 19:13:16,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:16,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1254 transitions. [2023-08-29 19:13:16,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2023-08-29 19:13:16,969 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1254 transitions. [2023-08-29 19:13:16,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1254 transitions. [2023-08-29 19:13:16,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:16,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1254 transitions. [2023-08-29 19:13:16,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 19:13:16,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 475.0) internal successors, (3325), 7 states have internal predecessors, (3325), 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 19:13:16,977 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 475.0) internal successors, (3325), 7 states have internal predecessors, (3325), 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 19:13:16,977 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 118 flow. Second operand 6 states and 1254 transitions. [2023-08-29 19:13:16,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 234 flow [2023-08-29 19:13:16,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 227 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:13:16,981 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2023-08-29 19:13:16,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2023-08-29 19:13:16,984 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -31 predicate places. [2023-08-29 19:13:16,984 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2023-08-29 19:13:16,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 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 19:13:16,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (62 of 63 remaining) [2023-08-29 19:13:16,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2023-08-29 19:13:16,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2023-08-29 19:13:16,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2023-08-29 19:13:16,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2023-08-29 19:13:16,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2023-08-29 19:13:16,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2023-08-29 19:13:16,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2023-08-29 19:13:16,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2023-08-29 19:13:16,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2023-08-29 19:13:16,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2023-08-29 19:13:16,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2023-08-29 19:13:16,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2023-08-29 19:13:16,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2023-08-29 19:13:16,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2023-08-29 19:13:16,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2023-08-29 19:13:16,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2023-08-29 19:13:16,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2023-08-29 19:13:16,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2023-08-29 19:13:16,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2023-08-29 19:13:16,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2023-08-29 19:13:16,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2023-08-29 19:13:16,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2023-08-29 19:13:16,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 63 remaining) [2023-08-29 19:13:16,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2023-08-29 19:13:16,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2023-08-29 19:13:16,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2023-08-29 19:13:16,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2023-08-29 19:13:16,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2023-08-29 19:13:16,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2023-08-29 19:13:16,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2023-08-29 19:13:16,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2023-08-29 19:13:16,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2023-08-29 19:13:16,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2023-08-29 19:13:16,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2023-08-29 19:13:17,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2023-08-29 19:13:17,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2023-08-29 19:13:17,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2023-08-29 19:13:17,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 63 remaining) [2023-08-29 19:13:17,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 63 remaining) [2023-08-29 19:13:17,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 63 remaining) [2023-08-29 19:13:17,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2023-08-29 19:13:17,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2023-08-29 19:13:17,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2023-08-29 19:13:17,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2023-08-29 19:13:17,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2023-08-29 19:13:17,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2023-08-29 19:13:17,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2023-08-29 19:13:17,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2023-08-29 19:13:17,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2023-08-29 19:13:17,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2023-08-29 19:13:17,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2023-08-29 19:13:17,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2023-08-29 19:13:17,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2023-08-29 19:13:17,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2023-08-29 19:13:17,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2023-08-29 19:13:17,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2023-08-29 19:13:17,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 19:13:17,005 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:17,010 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 19:13:17,010 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 19:13:17,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:13:17 BasicIcfg [2023-08-29 19:13:17,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 19:13:17,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 19:13:17,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 19:13:17,015 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 19:13:17,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:03" (3/4) ... [2023-08-29 19:13:17,017 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 19:13:17,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 19:13:17,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 19:13:17,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 19:13:17,030 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-29 19:13:17,030 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 19:13:17,030 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 19:13:17,031 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 19:13:17,082 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 19:13:17,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 19:13:17,083 INFO L158 Benchmark]: Toolchain (without parser) took 15283.34ms. Allocated memory was 75.5MB in the beginning and 161.5MB in the end (delta: 86.0MB). Free memory was 53.8MB in the beginning and 95.8MB in the end (delta: -42.0MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,083 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:13:17,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.72ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 41.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.42ms. Allocated memory is still 75.5MB. Free memory was 41.2MB in the beginning and 38.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,084 INFO L158 Benchmark]: Boogie Preprocessor took 59.02ms. Allocated memory is still 75.5MB. Free memory was 38.9MB in the beginning and 36.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,085 INFO L158 Benchmark]: RCFGBuilder took 905.67ms. Allocated memory is still 75.5MB. Free memory was 36.5MB in the beginning and 29.1MB in the end (delta: 7.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,085 INFO L158 Benchmark]: TraceAbstraction took 13865.30ms. Allocated memory was 75.5MB in the beginning and 161.5MB in the end (delta: 86.0MB). Free memory was 28.3MB in the beginning and 100.0MB in the end (delta: -71.6MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,087 INFO L158 Benchmark]: Witness Printer took 67.99ms. Allocated memory is still 161.5MB. Free memory was 100.0MB in the beginning and 95.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:13:17,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.72ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 41.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.42ms. Allocated memory is still 75.5MB. Free memory was 41.2MB in the beginning and 38.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.02ms. Allocated memory is still 75.5MB. Free memory was 38.9MB in the beginning and 36.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 905.67ms. Allocated memory is still 75.5MB. Free memory was 36.5MB in the beginning and 29.1MB in the end (delta: 7.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13865.30ms. Allocated memory was 75.5MB in the beginning and 161.5MB in the end (delta: 86.0MB). Free memory was 28.3MB in the beginning and 100.0MB in the end (delta: -71.6MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Witness Printer took 67.99ms. Allocated memory is still 161.5MB. Free memory was 100.0MB in the beginning and 95.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 225 PlacesBefore, 86 PlacesAfterwards, 227 TransitionsBefore, 83 TransitionsAfterwards, 5292 CoEnabledTransitionPairs, 8 FixpointIterations, 140 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 224 TotalNumberOfCompositions, 35094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11585, independent: 10790, independent conditional: 0, independent unconditional: 10790, dependent: 795, dependent conditional: 0, dependent unconditional: 795, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2692, independent: 2579, independent conditional: 0, independent unconditional: 2579, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11585, independent: 8211, independent conditional: 0, independent unconditional: 8211, dependent: 682, dependent conditional: 0, dependent unconditional: 682, unknown: 2692, unknown conditional: 0, unknown unconditional: 2692] , Statistics on independence cache: Total cache size (in pairs): 646, Positive cache size: 591, Positive conditional cache size: 0, Positive unconditional cache size: 591, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 298 locations, 63 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: 13.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 547 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 335 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1080 IncrementalHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 6 mSDtfsCounter, 1080 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 472 SizeOfPredicates, 4 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 8/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 38 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 19:13:17,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE