./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/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_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/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_a84a28e0-3e53-41da-b692-4581e66e5ab3/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 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:02,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:02,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:12:02,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:02,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:02,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:02,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:02,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:02,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:02,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:02,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:02,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:02,889 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:02,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:02,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:02,893 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:02,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:02,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:02,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:02,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:02,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:02,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:02,900 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:12:02,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:02,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:02,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:02,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:02,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:02,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:02,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:02,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:02,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:02,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:02,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:02,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:02,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:02,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:02,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:02,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:02,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:02,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:02,909 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_a84a28e0-3e53-41da-b692-4581e66e5ab3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2024-10-31 22:12:03,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:03,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:03,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:03,201 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:03,202 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:03,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i Unable to find full path for "g++" [2024-10-31 22:12:05,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:05,522 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:05,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-10-31 22:12:05,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/data/6319e4834/b0c5486f72bb4e048f96f30223fdcf50/FLAG4e4836b0e [2024-10-31 22:12:05,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/data/6319e4834/b0c5486f72bb4e048f96f30223fdcf50 [2024-10-31 22:12:05,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:05,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:05,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:05,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:05,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:05,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:05" (1/1) ... [2024-10-31 22:12:05,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6731cd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:05, skipping insertion in model container [2024-10-31 22:12:05,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:05" (1/1) ... [2024-10-31 22:12:05,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:06,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:06,168 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:06,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:06,291 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:06,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06 WrapperNode [2024-10-31 22:12:06,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:06,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:06,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:06,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:06,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,385 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 108 [2024-10-31 22:12:06,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:06,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:06,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:06,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:06,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:06,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:06,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:06,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:06,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (1/1) ... [2024-10-31 22:12:06,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:06,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:06,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:06,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84a28e0-3e53-41da-b692-4581e66e5ab3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:12:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:12:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:12:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:12:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:12:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:12:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:12:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:06,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:06,552 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 22:12:06,760 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:06,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:07,230 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:07,230 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:07,271 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:07,271 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-31 22:12:07,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:07 BoogieIcfgContainer [2024-10-31 22:12:07,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:07,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:07,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:07,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:07,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:05" (1/3) ... [2024-10-31 22:12:07,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343bf277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:07, skipping insertion in model container [2024-10-31 22:12:07,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:06" (2/3) ... [2024-10-31 22:12:07,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343bf277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:07, skipping insertion in model container [2024-10-31 22:12:07,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:07" (3/3) ... [2024-10-31 22:12:07,286 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2024-10-31 22:12:07,305 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:07,306 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-10-31 22:12:07,306 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:07,413 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:12:07,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 377 flow [2024-10-31 22:12:07,594 INFO L124 PetriNetUnfolderBase]: 19/248 cut-off events. [2024-10-31 22:12:07,594 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:12:07,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 248 events. 19/248 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 750 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2024-10-31 22:12:07,605 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 185 transitions, 377 flow [2024-10-31 22:12:07,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 185 transitions, 377 flow [2024-10-31 22:12:07,621 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:07,628 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;@62dd952c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:07,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:12:07,645 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:07,646 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-31 22:12:07,646 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:07,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:07,647 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] [2024-10-31 22:12:07,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:07,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:07,654 INFO L85 PathProgramCache]: Analyzing trace with hash -519905131, now seen corresponding path program 1 times [2024-10-31 22:12:07,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:07,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711594428] [2024-10-31 22:12:07,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:07,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:07,916 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 22:12:07,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:07,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711594428] [2024-10-31 22:12:07,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711594428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:07,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:07,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:07,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620793464] [2024-10-31 22:12:07,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:07,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:07,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:07,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-31 22:12:07,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 185 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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 22:12:07,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:07,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-31 22:12:07,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:08,168 INFO L124 PetriNetUnfolderBase]: 25/497 cut-off events. [2024-10-31 22:12:08,168 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:12:08,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 497 events. 25/497 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1943 event pairs, 24 based on Foata normal form. 54/500 useless extension candidates. Maximal degree in co-relation 451. Up to 69 conditions per place. [2024-10-31 22:12:08,173 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2024-10-31 22:12:08,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 383 flow [2024-10-31 22:12:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:08,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-10-31 22:12:08,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-10-31 22:12:08,191 INFO L175 Difference]: Start difference. First operand has 175 places, 185 transitions, 377 flow. Second operand 3 states and 490 transitions. [2024-10-31 22:12:08,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 383 flow [2024-10-31 22:12:08,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 170 transitions, 383 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:08,215 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 351 flow [2024-10-31 22:12:08,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2024-10-31 22:12:08,223 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, -1 predicate places. [2024-10-31 22:12:08,224 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 351 flow [2024-10-31 22:12:08,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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 22:12:08,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:08,225 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] [2024-10-31 22:12:08,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:08,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:08,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:08,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1412609993, now seen corresponding path program 1 times [2024-10-31 22:12:08,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:08,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756470270] [2024-10-31 22:12:08,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:08,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:08,305 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 22:12:08,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:08,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756470270] [2024-10-31 22:12:08,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756470270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:08,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:08,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:08,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62157229] [2024-10-31 22:12:08,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:08,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:08,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:08,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:08,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:08,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 185 [2024-10-31 22:12:08,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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 22:12:08,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:08,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 185 [2024-10-31 22:12:08,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:08,461 INFO L124 PetriNetUnfolderBase]: 25/494 cut-off events. [2024-10-31 22:12:08,461 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:12:08,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 494 events. 25/494 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1936 event pairs, 24 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 530. Up to 66 conditions per place. [2024-10-31 22:12:08,464 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 14 selfloop transitions, 1 changer transitions 0/168 dead transitions. [2024-10-31 22:12:08,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 168 transitions, 377 flow [2024-10-31 22:12:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2024-10-31 22:12:08,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8684684684684685 [2024-10-31 22:12:08,469 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 351 flow. Second operand 3 states and 482 transitions. [2024-10-31 22:12:08,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 168 transitions, 377 flow [2024-10-31 22:12:08,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 168 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:08,477 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 345 flow [2024-10-31 22:12:08,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2024-10-31 22:12:08,478 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, -3 predicate places. [2024-10-31 22:12:08,478 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 345 flow [2024-10-31 22:12:08,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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 22:12:08,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:08,480 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] [2024-10-31 22:12:08,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:08,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:08,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:08,481 INFO L85 PathProgramCache]: Analyzing trace with hash -138604748, now seen corresponding path program 1 times [2024-10-31 22:12:08,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:08,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947886439] [2024-10-31 22:12:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:08,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:08,572 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 22:12:08,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:08,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947886439] [2024-10-31 22:12:08,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947886439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:08,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:08,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:08,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856928440] [2024-10-31 22:12:08,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:08,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:08,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:08,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:08,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:08,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-31 22:12:08,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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 22:12:08,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:08,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-31 22:12:08,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:08,701 INFO L124 PetriNetUnfolderBase]: 25/431 cut-off events. [2024-10-31 22:12:08,701 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:12:08,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 431 events. 25/431 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1623 event pairs, 24 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 470. Up to 68 conditions per place. [2024-10-31 22:12:08,704 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2024-10-31 22:12:08,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 167 transitions, 379 flow [2024-10-31 22:12:08,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:08,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:08,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2024-10-31 22:12:08,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8612612612612612 [2024-10-31 22:12:08,707 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 345 flow. Second operand 3 states and 478 transitions. [2024-10-31 22:12:08,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 167 transitions, 379 flow [2024-10-31 22:12:08,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 167 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:08,711 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 346 flow [2024-10-31 22:12:08,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2024-10-31 22:12:08,713 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, -3 predicate places. [2024-10-31 22:12:08,713 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 346 flow [2024-10-31 22:12:08,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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 22:12:08,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:08,714 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] [2024-10-31 22:12:08,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:08,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:08,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash 798048297, now seen corresponding path program 1 times [2024-10-31 22:12:08,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771388782] [2024-10-31 22:12:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:08,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:09,550 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 22:12:09,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:09,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771388782] [2024-10-31 22:12:09,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771388782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:09,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:09,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488399020] [2024-10-31 22:12:09,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:09,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:09,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:09,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:09,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 185 [2024-10-31 22:12:09,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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 22:12:09,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:09,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 185 [2024-10-31 22:12:09,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:10,489 INFO L124 PetriNetUnfolderBase]: 535/2115 cut-off events. [2024-10-31 22:12:10,489 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:12:10,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3285 conditions, 2115 events. 535/2115 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14624 event pairs, 303 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 3247. Up to 988 conditions per place. [2024-10-31 22:12:10,499 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 71 selfloop transitions, 70 changer transitions 0/260 dead transitions. [2024-10-31 22:12:10,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 260 transitions, 814 flow [2024-10-31 22:12:10,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 886 transitions. [2024-10-31 22:12:10,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7981981981981981 [2024-10-31 22:12:10,503 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 346 flow. Second operand 6 states and 886 transitions. [2024-10-31 22:12:10,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 260 transitions, 814 flow [2024-10-31 22:12:10,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 260 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:10,511 INFO L231 Difference]: Finished difference. Result has 180 places, 236 transitions, 804 flow [2024-10-31 22:12:10,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=180, PETRI_TRANSITIONS=236} [2024-10-31 22:12:10,512 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, 5 predicate places. [2024-10-31 22:12:10,513 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 236 transitions, 804 flow [2024-10-31 22:12:10,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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 22:12:10,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:10,514 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] [2024-10-31 22:12:10,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:12:10,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:10,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:10,516 INFO L85 PathProgramCache]: Analyzing trace with hash 329997752, now seen corresponding path program 1 times [2024-10-31 22:12:10,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:10,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682365600] [2024-10-31 22:12:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:10,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:10,581 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 22:12:10,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:10,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682365600] [2024-10-31 22:12:10,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682365600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:10,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:10,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:10,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753747117] [2024-10-31 22:12:10,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:10,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:10,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:10,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:10,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:10,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 185 [2024-10-31 22:12:10,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 236 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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 22:12:10,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:10,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 185 [2024-10-31 22:12:10,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:10,824 INFO L124 PetriNetUnfolderBase]: 176/1067 cut-off events. [2024-10-31 22:12:10,824 INFO L125 PetriNetUnfolderBase]: For 119/136 co-relation queries the response was YES. [2024-10-31 22:12:10,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 1067 events. 176/1067 cut-off events. For 119/136 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6029 event pairs, 20 based on Foata normal form. 1/991 useless extension candidates. Maximal degree in co-relation 1687. Up to 191 conditions per place. [2024-10-31 22:12:10,830 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 20 selfloop transitions, 3 changer transitions 0/242 dead transitions. [2024-10-31 22:12:10,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 242 transitions, 862 flow [2024-10-31 22:12:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-10-31 22:12:10,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8846846846846846 [2024-10-31 22:12:10,833 INFO L175 Difference]: Start difference. First operand has 180 places, 236 transitions, 804 flow. Second operand 3 states and 491 transitions. [2024-10-31 22:12:10,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 242 transitions, 862 flow [2024-10-31 22:12:10,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 242 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:10,845 INFO L231 Difference]: Finished difference. Result has 183 places, 236 transitions, 815 flow [2024-10-31 22:12:10,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=183, PETRI_TRANSITIONS=236} [2024-10-31 22:12:10,847 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, 8 predicate places. [2024-10-31 22:12:10,848 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 236 transitions, 815 flow [2024-10-31 22:12:10,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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 22:12:10,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:10,848 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] [2024-10-31 22:12:10,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:12:10,850 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:10,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:10,851 INFO L85 PathProgramCache]: Analyzing trace with hash -571676016, now seen corresponding path program 1 times [2024-10-31 22:12:10,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:10,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036034560] [2024-10-31 22:12:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:10,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:10,918 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 22:12:10,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:10,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036034560] [2024-10-31 22:12:10,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036034560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:10,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:10,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:10,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601471178] [2024-10-31 22:12:10,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:10,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:10,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:10,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:10,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:10,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 185 [2024-10-31 22:12:10,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 236 transitions, 815 flow. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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 22:12:10,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:10,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 185 [2024-10-31 22:12:10,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:11,187 INFO L124 PetriNetUnfolderBase]: 145/864 cut-off events. [2024-10-31 22:12:11,188 INFO L125 PetriNetUnfolderBase]: For 109/128 co-relation queries the response was YES. [2024-10-31 22:12:11,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 864 events. 145/864 cut-off events. For 109/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4710 event pairs, 4 based on Foata normal form. 0/817 useless extension candidates. Maximal degree in co-relation 1463. Up to 221 conditions per place. [2024-10-31 22:12:11,193 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 1 changer transitions 0/236 dead transitions. [2024-10-31 22:12:11,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 236 transitions, 849 flow [2024-10-31 22:12:11,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-10-31 22:12:11,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.872072072072072 [2024-10-31 22:12:11,195 INFO L175 Difference]: Start difference. First operand has 183 places, 236 transitions, 815 flow. Second operand 3 states and 484 transitions. [2024-10-31 22:12:11,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 236 transitions, 849 flow [2024-10-31 22:12:11,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 236 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:11,204 INFO L231 Difference]: Finished difference. Result has 181 places, 234 transitions, 807 flow [2024-10-31 22:12:11,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=181, PETRI_TRANSITIONS=234} [2024-10-31 22:12:11,206 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, 6 predicate places. [2024-10-31 22:12:11,207 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 234 transitions, 807 flow [2024-10-31 22:12:11,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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 22:12:11,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:11,208 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:11,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:12:11,210 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:12:11,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1394837605, now seen corresponding path program 1 times [2024-10-31 22:12:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:11,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835648267] [2024-10-31 22:12:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:11,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:11,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:11,301 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:11,302 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-10-31 22:12:11,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-10-31 22:12:11,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-10-31 22:12:11,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-10-31 22:12:11,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-10-31 22:12:11,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-10-31 22:12:11,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-10-31 22:12:11,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-10-31 22:12:11,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-10-31 22:12:11,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-10-31 22:12:11,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-10-31 22:12:11,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-10-31 22:12:11,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-10-31 22:12:11,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-10-31 22:12:11,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-10-31 22:12:11,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-10-31 22:12:11,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-10-31 22:12:11,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-10-31 22:12:11,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-10-31 22:12:11,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-10-31 22:12:11,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:12:11,312 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:11,316 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:12:11,316 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:12:11,375 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:12:11,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 256 transitions, 528 flow [2024-10-31 22:12:11,518 INFO L124 PetriNetUnfolderBase]: 34/410 cut-off events. [2024-10-31 22:12:11,518 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:12:11,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 410 events. 34/410 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1564 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2024-10-31 22:12:11,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 256 transitions, 528 flow [2024-10-31 22:12:11,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 256 transitions, 528 flow [2024-10-31 22:12:11,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:11,531 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;@62dd952c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:11,531 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-31 22:12:11,545 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:11,546 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-31 22:12:11,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:11,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:11,546 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] [2024-10-31 22:12:11,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:12:11,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1225064853, now seen corresponding path program 1 times [2024-10-31 22:12:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783829516] [2024-10-31 22:12:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:11,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:11,584 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 22:12:11,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:11,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783829516] [2024-10-31 22:12:11,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783829516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:11,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:11,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:11,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106929775] [2024-10-31 22:12:11,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:11,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:11,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:11,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:11,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:11,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 256 [2024-10-31 22:12:11,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 256 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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 22:12:11,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:11,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 256 [2024-10-31 22:12:11,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:12,423 INFO L124 PetriNetUnfolderBase]: 430/3697 cut-off events. [2024-10-31 22:12:12,424 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-10-31 22:12:12,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4481 conditions, 3697 events. 430/3697 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 32095 event pairs, 420 based on Foata normal form. 578/3897 useless extension candidates. Maximal degree in co-relation 3717. Up to 739 conditions per place. [2024-10-31 22:12:12,452 INFO L140 encePairwiseOnDemand]: 235/256 looper letters, 24 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-10-31 22:12:12,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 235 transitions, 538 flow [2024-10-31 22:12:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-10-31 22:12:12,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.87890625 [2024-10-31 22:12:12,455 INFO L175 Difference]: Start difference. First operand has 241 places, 256 transitions, 528 flow. Second operand 3 states and 675 transitions. [2024-10-31 22:12:12,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 235 transitions, 538 flow [2024-10-31 22:12:12,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:12,464 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 490 flow [2024-10-31 22:12:12,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2024-10-31 22:12:12,467 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -1 predicate places. [2024-10-31 22:12:12,467 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 490 flow [2024-10-31 22:12:12,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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 22:12:12,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:12,468 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] [2024-10-31 22:12:12,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:12:12,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:12:12,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:12,473 INFO L85 PathProgramCache]: Analyzing trace with hash 466307383, now seen corresponding path program 1 times [2024-10-31 22:12:12,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:12,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872612524] [2024-10-31 22:12:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:12,512 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 22:12:12,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:12,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872612524] [2024-10-31 22:12:12,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872612524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:12,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:12,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:12,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785786611] [2024-10-31 22:12:12,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:12,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:12,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:12,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:12,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:12,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 256 [2024-10-31 22:12:12,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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 22:12:12,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:12,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 256 [2024-10-31 22:12:12,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:13,233 INFO L124 PetriNetUnfolderBase]: 418/3631 cut-off events. [2024-10-31 22:12:13,234 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:12:13,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4396 conditions, 3631 events. 418/3631 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31166 event pairs, 414 based on Foata normal form. 0/3274 useless extension candidates. Maximal degree in co-relation 4355. Up to 717 conditions per place. [2024-10-31 22:12:13,299 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 22 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2024-10-31 22:12:13,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 233 transitions, 532 flow [2024-10-31 22:12:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-10-31 22:12:13,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8606770833333334 [2024-10-31 22:12:13,302 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 490 flow. Second operand 3 states and 661 transitions. [2024-10-31 22:12:13,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 233 transitions, 532 flow [2024-10-31 22:12:13,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 233 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:13,307 INFO L231 Difference]: Finished difference. Result has 238 places, 233 transitions, 484 flow [2024-10-31 22:12:13,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=238, PETRI_TRANSITIONS=233} [2024-10-31 22:12:13,308 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -3 predicate places. [2024-10-31 22:12:13,308 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 233 transitions, 484 flow [2024-10-31 22:12:13,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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 22:12:13,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:13,309 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] [2024-10-31 22:12:13,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:12:13,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:12:13,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1196085300, now seen corresponding path program 1 times [2024-10-31 22:12:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:13,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014980904] [2024-10-31 22:12:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:13,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,335 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 22:12:13,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:13,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014980904] [2024-10-31 22:12:13,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014980904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:13,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:13,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:13,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636246506] [2024-10-31 22:12:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:13,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:13,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 256 [2024-10-31 22:12:13,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 233 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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 22:12:13,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:13,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 256 [2024-10-31 22:12:13,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:14,125 INFO L124 PetriNetUnfolderBase]: 564/3800 cut-off events. [2024-10-31 22:12:14,125 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-31 22:12:14,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 3800 events. 564/3800 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 33926 event pairs, 552 based on Foata normal form. 0/3412 useless extension candidates. Maximal degree in co-relation 4775. Up to 957 conditions per place. [2024-10-31 22:12:14,153 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 26 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2024-10-31 22:12:14,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 232 transitions, 538 flow [2024-10-31 22:12:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:14,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2024-10-31 22:12:14,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8502604166666666 [2024-10-31 22:12:14,155 INFO L175 Difference]: Start difference. First operand has 238 places, 233 transitions, 484 flow. Second operand 3 states and 653 transitions. [2024-10-31 22:12:14,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 232 transitions, 538 flow [2024-10-31 22:12:14,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 537 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:14,160 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 485 flow [2024-10-31 22:12:14,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=485, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2024-10-31 22:12:14,161 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -3 predicate places. [2024-10-31 22:12:14,161 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 485 flow [2024-10-31 22:12:14,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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 22:12:14,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:14,162 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] [2024-10-31 22:12:14,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:12:14,162 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:12:14,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1062347049, now seen corresponding path program 1 times [2024-10-31 22:12:14,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:14,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539375409] [2024-10-31 22:12:14,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:14,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:14,592 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 22:12:14,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:14,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539375409] [2024-10-31 22:12:14,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539375409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:14,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:14,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:14,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782830643] [2024-10-31 22:12:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:14,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:14,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:14,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:14,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:14,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 256 [2024-10-31 22:12:14,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 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 22:12:14,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:14,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 256 [2024-10-31 22:12:14,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:24,653 INFO L124 PetriNetUnfolderBase]: 27083/64954 cut-off events. [2024-10-31 22:12:24,654 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-10-31 22:12:24,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107320 conditions, 64954 events. 27083/64954 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 726108 event pairs, 18139 based on Foata normal form. 0/60423 useless extension candidates. Maximal degree in co-relation 107281. Up to 37375 conditions per place. [2024-10-31 22:12:25,154 INFO L140 encePairwiseOnDemand]: 217/256 looper letters, 120 selfloop transitions, 134 changer transitions 0/414 dead transitions. [2024-10-31 22:12:25,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 414 transitions, 1362 flow [2024-10-31 22:12:25,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:25,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:25,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1245 transitions. [2024-10-31 22:12:25,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.810546875 [2024-10-31 22:12:25,160 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 485 flow. Second operand 6 states and 1245 transitions. [2024-10-31 22:12:25,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 414 transitions, 1362 flow [2024-10-31 22:12:25,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 414 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:25,187 INFO L231 Difference]: Finished difference. Result has 246 places, 365 transitions, 1359 flow [2024-10-31 22:12:25,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1359, PETRI_PLACES=246, PETRI_TRANSITIONS=365} [2024-10-31 22:12:25,189 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 5 predicate places. [2024-10-31 22:12:25,190 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 365 transitions, 1359 flow [2024-10-31 22:12:25,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 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 22:12:25,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:25,191 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] [2024-10-31 22:12:25,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:12:25,192 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:12:25,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash 918036152, now seen corresponding path program 1 times [2024-10-31 22:12:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252864459] [2024-10-31 22:12:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:25,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:25,255 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 22:12:25,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:25,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252864459] [2024-10-31 22:12:25,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252864459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:25,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:25,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:25,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812799561] [2024-10-31 22:12:25,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:25,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:25,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:25,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:25,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:25,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 256 [2024-10-31 22:12:25,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 365 transitions, 1359 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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 22:12:25,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:25,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 256 [2024-10-31 22:12:25,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:31,039 INFO L124 PetriNetUnfolderBase]: 10377/34063 cut-off events. [2024-10-31 22:12:31,040 INFO L125 PetriNetUnfolderBase]: For 5308/5785 co-relation queries the response was YES. [2024-10-31 22:12:31,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60238 conditions, 34063 events. 10377/34063 cut-off events. For 5308/5785 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 393695 event pairs, 4204 based on Foata normal form. 1/31230 useless extension candidates. Maximal degree in co-relation 60195. Up to 11276 conditions per place. [2024-10-31 22:12:31,526 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 30 selfloop transitions, 3 changer transitions 0/373 dead transitions. [2024-10-31 22:12:31,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 373 transitions, 1447 flow [2024-10-31 22:12:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 671 transitions. [2024-10-31 22:12:31,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736979166666666 [2024-10-31 22:12:31,529 INFO L175 Difference]: Start difference. First operand has 246 places, 365 transitions, 1359 flow. Second operand 3 states and 671 transitions. [2024-10-31 22:12:31,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 373 transitions, 1447 flow [2024-10-31 22:12:31,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 373 transitions, 1447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:31,772 INFO L231 Difference]: Finished difference. Result has 249 places, 367 transitions, 1384 flow [2024-10-31 22:12:31,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1359, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1384, PETRI_PLACES=249, PETRI_TRANSITIONS=367} [2024-10-31 22:12:31,774 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 8 predicate places. [2024-10-31 22:12:31,775 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 367 transitions, 1384 flow [2024-10-31 22:12:31,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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 22:12:31,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:31,776 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] [2024-10-31 22:12:31,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:12:31,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:12:31,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:31,777 INFO L85 PathProgramCache]: Analyzing trace with hash -666200619, now seen corresponding path program 1 times [2024-10-31 22:12:31,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:31,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017445893] [2024-10-31 22:12:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:31,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,867 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 22:12:31,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:31,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017445893] [2024-10-31 22:12:31,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017445893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:31,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:31,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353920419] [2024-10-31 22:12:31,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:31,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:31,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:31,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:31,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 256 [2024-10-31 22:12:31,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 367 transitions, 1384 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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 22:12:31,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:31,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 256 [2024-10-31 22:12:31,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand