./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:43,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:43,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:05:43,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:43,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:44,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:44,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:44,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:44,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:44,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:44,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:44,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:44,008 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:44,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:44,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:44,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:44,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:44,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:44,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:44,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:44,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:44,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:44,019 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:05:44,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:44,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:05:44,020 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:44,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:44,021 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:44,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:44,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:44,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:44,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:44,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:44,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:44,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:44,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:44,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:44,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:44,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:44,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:44,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:44,027 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2024-10-31 22:05:44,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:44,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:44,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:44,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:44,454 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:44,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/queue.i Unable to find full path for "g++" [2024-10-31 22:05:46,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:47,044 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:47,044 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/sv-benchmarks/c/pthread/queue.i [2024-10-31 22:05:47,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/data/c11dd07f4/0f2dc9fd9300493d864fc3fbec27481c/FLAG7791c9ef7 [2024-10-31 22:05:47,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/data/c11dd07f4/0f2dc9fd9300493d864fc3fbec27481c [2024-10-31 22:05:47,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:47,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:47,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:47,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:47,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:47,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:47,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9dfa33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47, skipping insertion in model container [2024-10-31 22:05:47,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:47,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:47,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:47,749 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:47,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:47,951 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:47,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47 WrapperNode [2024-10-31 22:05:47,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:47,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:47,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:47,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:47,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:47,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,062 INFO L138 Inliner]: procedures = 274, calls = 107, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 524 [2024-10-31 22:05:48,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:48,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:48,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:48,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:48,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:48,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:48,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:48,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:48,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (1/1) ... [2024-10-31 22:05:48,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:48,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:48,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:48,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc3a0e9-deab-4c62-a2de-5fa22076ce3e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-31 22:05:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-31 22:05:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-31 22:05:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-31 22:05:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:05:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:05:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:05:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:05:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:05:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:48,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:48,272 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:05:48,570 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:48,573 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:49,615 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:05:49,615 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:49,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:49,653 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:05:49,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:49 BoogieIcfgContainer [2024-10-31 22:05:49,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:49,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:49,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:49,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:49,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:47" (1/3) ... [2024-10-31 22:05:49,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fb6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:49, skipping insertion in model container [2024-10-31 22:05:49,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:47" (2/3) ... [2024-10-31 22:05:49,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fb6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:49, skipping insertion in model container [2024-10-31 22:05:49,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:49" (3/3) ... [2024-10-31 22:05:49,663 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2024-10-31 22:05:49,683 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:49,683 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-31 22:05:49,684 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:05:50,031 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:05:50,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 594 transitions, 1202 flow [2024-10-31 22:05:50,512 INFO L124 PetriNetUnfolderBase]: 18/592 cut-off events. [2024-10-31 22:05:50,512 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:05:50,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 592 events. 18/592 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 730 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 452. Up to 2 conditions per place. [2024-10-31 22:05:50,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 594 transitions, 1202 flow [2024-10-31 22:05:50,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 570 places, 579 transitions, 1167 flow [2024-10-31 22:05:50,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:50,561 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6f187c11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:50,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-31 22:05:50,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:05:50,575 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2024-10-31 22:05:50,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:05:50,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:50,577 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:50,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:05:50,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1355596423, now seen corresponding path program 1 times [2024-10-31 22:05:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:50,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383564078] [2024-10-31 22:05:50,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:50,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:51,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:51,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383564078] [2024-10-31 22:05:51,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383564078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:51,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:51,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:51,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087835161] [2024-10-31 22:05:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:51,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:51,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:51,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:51,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:51,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 594 [2024-10-31 22:05:51,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 579 transitions, 1167 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-10-31 22:05:51,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:51,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 594 [2024-10-31 22:05:51,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:51,794 INFO L124 PetriNetUnfolderBase]: 61/1686 cut-off events. [2024-10-31 22:05:51,794 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-31 22:05:51,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 1686 events. 61/1686 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7614 event pairs, 27 based on Foata normal form. 37/1546 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2024-10-31 22:05:51,814 INFO L140 encePairwiseOnDemand]: 585/594 looper letters, 15 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2024-10-31 22:05:51,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 568 transitions, 1179 flow [2024-10-31 22:05:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1710 transitions. [2024-10-31 22:05:51,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9595959595959596 [2024-10-31 22:05:51,846 INFO L175 Difference]: Start difference. First operand has 570 places, 579 transitions, 1167 flow. Second operand 3 states and 1710 transitions. [2024-10-31 22:05:51,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 568 transitions, 1179 flow [2024-10-31 22:05:51,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 568 transitions, 1174 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:05:51,871 INFO L231 Difference]: Finished difference. Result has 564 places, 568 transitions, 1144 flow [2024-10-31 22:05:51,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=568} [2024-10-31 22:05:51,879 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2024-10-31 22:05:51,881 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 568 transitions, 1144 flow [2024-10-31 22:05:51,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-10-31 22:05:51,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:51,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:51,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:51,885 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:05:51,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,887 INFO L85 PathProgramCache]: Analyzing trace with hash 122017214, now seen corresponding path program 1 times [2024-10-31 22:05:51,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894235824] [2024-10-31 22:05:51,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:52,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:52,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894235824] [2024-10-31 22:05:52,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894235824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:52,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:52,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:52,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772269853] [2024-10-31 22:05:52,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:52,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:52,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:52,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:52,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:52,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 594 [2024-10-31 22:05:52,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 568 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-10-31 22:05:52,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:52,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 594 [2024-10-31 22:05:52,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:52,792 INFO L124 PetriNetUnfolderBase]: 69/1960 cut-off events. [2024-10-31 22:05:52,793 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:05:52,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1960 events. 69/1960 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 9636 event pairs, 29 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2024-10-31 22:05:52,813 INFO L140 encePairwiseOnDemand]: 591/594 looper letters, 15 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2024-10-31 22:05:52,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 567 transitions, 1176 flow [2024-10-31 22:05:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2024-10-31 22:05:52,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9562289562289562 [2024-10-31 22:05:52,821 INFO L175 Difference]: Start difference. First operand has 564 places, 568 transitions, 1144 flow. Second operand 3 states and 1704 transitions. [2024-10-31 22:05:52,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 567 transitions, 1176 flow [2024-10-31 22:05:52,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 567 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:52,836 INFO L231 Difference]: Finished difference. Result has 563 places, 567 transitions, 1142 flow [2024-10-31 22:05:52,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=567} [2024-10-31 22:05:52,838 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2024-10-31 22:05:52,838 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 567 transitions, 1142 flow [2024-10-31 22:05:52,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-10-31 22:05:52,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:52,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-10-31 22:05:52,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:52,842 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:05:52,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:52,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1198836137, now seen corresponding path program 1 times [2024-10-31 22:05:52,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:52,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495541192] [2024-10-31 22:05:52,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:53,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:53,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495541192] [2024-10-31 22:05:53,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495541192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:53,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:53,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:53,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955265820] [2024-10-31 22:05:53,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:53,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:53,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:53,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:53,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:55,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 594 [2024-10-31 22:05:55,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 567 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-10-31 22:05:55,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:55,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 594 [2024-10-31 22:05:55,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:00,126 INFO L124 PetriNetUnfolderBase]: 3671/15096 cut-off events. [2024-10-31 22:06:00,127 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:06:00,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22144 conditions, 15096 events. 3671/15096 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 137006 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22055. Up to 6868 conditions per place. [2024-10-31 22:06:00,242 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 138 selfloop transitions, 5 changer transitions 0/566 dead transitions. [2024-10-31 22:06:00,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 566 transitions, 1426 flow [2024-10-31 22:06:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2024-10-31 22:06:00,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760942760942761 [2024-10-31 22:06:00,251 INFO L175 Difference]: Start difference. First operand has 563 places, 567 transitions, 1142 flow. Second operand 6 states and 2766 transitions. [2024-10-31 22:06:00,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 566 transitions, 1426 flow [2024-10-31 22:06:00,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 566 transitions, 1422 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:00,263 INFO L231 Difference]: Finished difference. Result has 565 places, 566 transitions, 1146 flow [2024-10-31 22:06:00,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=565, PETRI_TRANSITIONS=566} [2024-10-31 22:06:00,267 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -5 predicate places. [2024-10-31 22:06:00,267 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 566 transitions, 1146 flow [2024-10-31 22:06:00,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-10-31 22:06:00,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:00,270 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:00,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:00,270 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:06:00,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1210846249, now seen corresponding path program 1 times [2024-10-31 22:06:00,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:00,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078669389] [2024-10-31 22:06:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:00,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:01,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:01,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:01,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078669389] [2024-10-31 22:06:01,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078669389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:01,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:01,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:01,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928018373] [2024-10-31 22:06:01,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:01,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:01,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:01,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:01,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:02,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 594 [2024-10-31 22:06:02,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 566 transitions, 1146 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-10-31 22:06:02,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:02,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 594 [2024-10-31 22:06:02,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:06,278 INFO L124 PetriNetUnfolderBase]: 3671/15095 cut-off events. [2024-10-31 22:06:06,279 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:06:06,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22146 conditions, 15095 events. 3671/15095 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136776 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22041. Up to 6868 conditions per place. [2024-10-31 22:06:06,379 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 138 selfloop transitions, 5 changer transitions 0/565 dead transitions. [2024-10-31 22:06:06,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 565 transitions, 1430 flow [2024-10-31 22:06:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2024-10-31 22:06:06,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760942760942761 [2024-10-31 22:06:06,388 INFO L175 Difference]: Start difference. First operand has 565 places, 566 transitions, 1146 flow. Second operand 6 states and 2766 transitions. [2024-10-31 22:06:06,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 565 transitions, 1430 flow [2024-10-31 22:06:06,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 565 transitions, 1420 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:06,402 INFO L231 Difference]: Finished difference. Result has 564 places, 565 transitions, 1144 flow [2024-10-31 22:06:06,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=565} [2024-10-31 22:06:06,404 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2024-10-31 22:06:06,405 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 565 transitions, 1144 flow [2024-10-31 22:06:06,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-10-31 22:06:06,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:06,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:06,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:06,408 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:06:06,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:06,409 INFO L85 PathProgramCache]: Analyzing trace with hash 371736531, now seen corresponding path program 1 times [2024-10-31 22:06:06,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:06,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468281252] [2024-10-31 22:06:06,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:06,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:07,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468281252] [2024-10-31 22:06:07,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468281252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:07,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:07,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817627329] [2024-10-31 22:06:07,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:07,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:07,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:07,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:07,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:08,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 594 [2024-10-31 22:06:08,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 565 transitions, 1144 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-10-31 22:06:08,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:08,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 594 [2024-10-31 22:06:08,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:11,925 INFO L124 PetriNetUnfolderBase]: 3671/15094 cut-off events. [2024-10-31 22:06:11,925 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:06:11,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22145 conditions, 15094 events. 3671/15094 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 137077 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22032. Up to 6868 conditions per place. [2024-10-31 22:06:12,001 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 138 selfloop transitions, 5 changer transitions 0/564 dead transitions. [2024-10-31 22:06:12,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 564 transitions, 1428 flow [2024-10-31 22:06:12,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2024-10-31 22:06:12,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760942760942761 [2024-10-31 22:06:12,008 INFO L175 Difference]: Start difference. First operand has 564 places, 565 transitions, 1144 flow. Second operand 6 states and 2766 transitions. [2024-10-31 22:06:12,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 564 transitions, 1428 flow [2024-10-31 22:06:12,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 564 transitions, 1418 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:12,018 INFO L231 Difference]: Finished difference. Result has 563 places, 564 transitions, 1142 flow [2024-10-31 22:06:12,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=564} [2024-10-31 22:06:12,020 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2024-10-31 22:06:12,020 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 564 transitions, 1142 flow [2024-10-31 22:06:12,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-10-31 22:06:12,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:12,023 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:12,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:12,023 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:06:12,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1532074322, now seen corresponding path program 1 times [2024-10-31 22:06:12,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:12,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879665212] [2024-10-31 22:06:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:12,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:12,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:12,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:12,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879665212] [2024-10-31 22:06:12,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879665212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:12,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:12,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:12,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235219272] [2024-10-31 22:06:12,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:12,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:12,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:14,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 594 [2024-10-31 22:06:14,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 564 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2024-10-31 22:06:14,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:14,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 594 [2024-10-31 22:06:14,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:15,693 INFO L124 PetriNetUnfolderBase]: 831/5612 cut-off events. [2024-10-31 22:06:15,693 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:06:15,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7190 conditions, 5612 events. 831/5612 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45274 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7059. Up to 1475 conditions per place. [2024-10-31 22:06:15,730 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 76 selfloop transitions, 5 changer transitions 0/563 dead transitions. [2024-10-31 22:06:15,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 563 transitions, 1302 flow [2024-10-31 22:06:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2024-10-31 22:06:15,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8630751964085297 [2024-10-31 22:06:15,742 INFO L175 Difference]: Start difference. First operand has 563 places, 564 transitions, 1142 flow. Second operand 6 states and 3076 transitions. [2024-10-31 22:06:15,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 563 transitions, 1302 flow [2024-10-31 22:06:15,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 563 transitions, 1292 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:15,756 INFO L231 Difference]: Finished difference. Result has 562 places, 563 transitions, 1140 flow [2024-10-31 22:06:15,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1140, PETRI_PLACES=562, PETRI_TRANSITIONS=563} [2024-10-31 22:06:15,760 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -8 predicate places. [2024-10-31 22:06:15,761 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 563 transitions, 1140 flow [2024-10-31 22:06:15,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2024-10-31 22:06:15,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:15,764 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-10-31 22:06:15,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:15,764 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-31 22:06:15,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1211099242, now seen corresponding path program 1 times [2024-10-31 22:06:15,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:15,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338506773] [2024-10-31 22:06:15,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:15,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:16,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:16,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338506773] [2024-10-31 22:06:16,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338506773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:16,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:16,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138907493] [2024-10-31 22:06:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:16,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:16,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:16,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30