./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:08:40,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:08:40,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:08:40,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:08:40,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:08:40,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:08:40,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:08:40,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:08:40,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:08:40,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:08:40,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:08:40,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:08:40,291 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:08:40,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:08:40,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:08:40,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:08:40,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:08:40,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:08:40,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:08:40,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:08:40,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:08:40,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:08:40,296 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:08:40,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:08:40,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:08:40,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:08:40,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:08:40,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:08:40,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:08:40,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:08:40,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:40,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:08:40,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:08:40,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:08:40,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:08:40,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:08:40,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:08:40,302 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:08:40,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:08:40,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:08:40,324 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:08:40,324 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_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc [2023-11-06 22:08:40,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:08:40,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:08:40,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:08:40,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:08:40,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:08:40,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2023-11-06 22:08:43,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:08:43,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:08:43,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2023-11-06 22:08:43,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/data/675f1e06b/bb43eab040004116bb777ca40884010f/FLAGf230ce7a2 [2023-11-06 22:08:44,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/data/675f1e06b/bb43eab040004116bb777ca40884010f [2023-11-06 22:08:44,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:08:44,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:08:44,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:44,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:08:44,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:08:44,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@843b3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44, skipping insertion in model container [2023-11-06 22:08:44,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,064 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:08:44,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:44,530 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:08:44,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:44,663 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:08:44,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44 WrapperNode [2023-11-06 22:08:44,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:44,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:44,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:08:44,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:08:44,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,742 INFO L138 Inliner]: procedures = 168, calls = 38, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 242 [2023-11-06 22:08:44,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:44,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:08:44,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:08:44,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:08:44,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:08:44,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:08:44,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:08:44,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:08:44,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (1/1) ... [2023-11-06 22:08:44,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:08:44,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:08:44,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c96eb14-4659-43f0-b64e-808e7e5bc67a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:08:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:08:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-06 22:08:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-06 22:08:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-06 22:08:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-06 22:08:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:08:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:08:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:08:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:08:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:08:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:08:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:08:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:08:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:08:44,988 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:08:45,156 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:08:45,158 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:08:45,550 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:08:45,562 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:08:45,563 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:08:45,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:45 BoogieIcfgContainer [2023-11-06 22:08:45,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:08:45,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:08:45,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:08:45,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:08:45,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:44" (1/3) ... [2023-11-06 22:08:45,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693600d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:45, skipping insertion in model container [2023-11-06 22:08:45,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:44" (2/3) ... [2023-11-06 22:08:45,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693600d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:45, skipping insertion in model container [2023-11-06 22:08:45,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:45" (3/3) ... [2023-11-06 22:08:45,574 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2023-11-06 22:08:45,583 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:08:45,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:08:45,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-11-06 22:08:45,593 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:08:45,719 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:08:45,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 288 transitions, 590 flow [2023-11-06 22:08:45,983 INFO L124 PetriNetUnfolderBase]: 14/286 cut-off events. [2023-11-06 22:08:45,984 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:08:45,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 14/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 747 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-06 22:08:45,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 288 transitions, 590 flow [2023-11-06 22:08:46,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 276 transitions, 561 flow [2023-11-06 22:08:46,018 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:08:46,038 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 276 transitions, 561 flow [2023-11-06 22:08:46,053 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 276 transitions, 561 flow [2023-11-06 22:08:46,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 276 transitions, 561 flow [2023-11-06 22:08:46,211 INFO L124 PetriNetUnfolderBase]: 14/276 cut-off events. [2023-11-06 22:08:46,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:08:46,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 276 events. 14/276 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 683 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-06 22:08:46,237 INFO L119 LiptonReduction]: Number of co-enabled transitions 22060 [2023-11-06 22:08:53,729 INFO L134 LiptonReduction]: Checked pairs total: 126024 [2023-11-06 22:08:53,730 INFO L136 LiptonReduction]: Total number of compositions: 225 [2023-11-06 22:08:53,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:08:53,753 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13171c3d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:08:53,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-06 22:08:53,755 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:08:53,756 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:08:53,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:08:53,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:08:53,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:08:53,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:08:53,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:53,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1069, now seen corresponding path program 1 times [2023-11-06 22:08:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:53,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409579072] [2023-11-06 22:08:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:53,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:08:53,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:53,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409579072] [2023-11-06 22:08:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409579072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:53,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:53,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:08:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184610219] [2023-11-06 22:08:53,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:53,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:08:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:08:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:53,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 513 [2023-11-06 22:08:53,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 115 transitions, 239 flow. Second operand has 2 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:53,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:08:53,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 513 [2023-11-06 22:08:53,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:08:54,407 INFO L124 PetriNetUnfolderBase]: 1229/2888 cut-off events. [2023-11-06 22:08:54,407 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-06 22:08:54,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4870 conditions, 2888 events. 1229/2888 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20236 event pairs, 927 based on Foata normal form. 28/2437 useless extension candidates. Maximal degree in co-relation 4634. Up to 1924 conditions per place. [2023-11-06 22:08:54,438 INFO L140 encePairwiseOnDemand]: 501/513 looper letters, 47 selfloop transitions, 0 changer transitions 0/101 dead transitions. [2023-11-06 22:08:54,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 101 transitions, 305 flow [2023-11-06 22:08:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:08:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:08:54,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 611 transitions. [2023-11-06 22:08:54,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5955165692007798 [2023-11-06 22:08:54,466 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 611 transitions. [2023-11-06 22:08:54,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 611 transitions. [2023-11-06 22:08:54,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:08:54,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 611 transitions. [2023-11-06 22:08:54,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 305.5) internal successors, (611), 2 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:54,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:54,487 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:54,489 INFO L175 Difference]: Start difference. First operand has 112 places, 115 transitions, 239 flow. Second operand 2 states and 611 transitions. [2023-11-06 22:08:54,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 101 transitions, 305 flow [2023-11-06 22:08:54,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 101 transitions, 300 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:08:54,497 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 206 flow [2023-11-06 22:08:54,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=206, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2023-11-06 22:08:54,502 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -14 predicate places. [2023-11-06 22:08:54,503 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 206 flow [2023-11-06 22:08:54,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:54,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:08:54,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:08:54,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:08:54,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:08:54,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1524218446, now seen corresponding path program 1 times [2023-11-06 22:08:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:54,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530249399] [2023-11-06 22:08:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:08:54,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:54,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530249399] [2023-11-06 22:08:54,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530249399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:54,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:54,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:54,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826652181] [2023-11-06 22:08:54,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:54,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:08:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:54,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:08:54,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:08:54,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 513 [2023-11-06 22:08:54,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:54,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:08:54,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 513 [2023-11-06 22:08:54,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:08:55,494 INFO L124 PetriNetUnfolderBase]: 2435/5404 cut-off events. [2023-11-06 22:08:55,495 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-06 22:08:55,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9233 conditions, 5404 events. 2435/5404 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 40119 event pairs, 671 based on Foata normal form. 0/4555 useless extension candidates. Maximal degree in co-relation 9230. Up to 2080 conditions per place. [2023-11-06 22:08:55,544 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 89 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-11-06 22:08:55,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 144 transitions, 481 flow [2023-11-06 22:08:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:08:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:08:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 904 transitions. [2023-11-06 22:08:55,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873944119558154 [2023-11-06 22:08:55,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 904 transitions. [2023-11-06 22:08:55,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 904 transitions. [2023-11-06 22:08:55,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:08:55,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 904 transitions. [2023-11-06 22:08:55,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:55,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:55,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:55,562 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 206 flow. Second operand 3 states and 904 transitions. [2023-11-06 22:08:55,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 144 transitions, 481 flow [2023-11-06 22:08:55,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 144 transitions, 481 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:08:55,567 INFO L231 Difference]: Finished difference. Result has 102 places, 105 transitions, 240 flow [2023-11-06 22:08:55,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=102, PETRI_TRANSITIONS=105} [2023-11-06 22:08:55,568 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -10 predicate places. [2023-11-06 22:08:55,569 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 105 transitions, 240 flow [2023-11-06 22:08:55,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:55,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:08:55,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:55,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:08:55,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:08:55,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1219915749, now seen corresponding path program 1 times [2023-11-06 22:08:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:55,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430704148] [2023-11-06 22:08:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:08:55,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:55,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430704148] [2023-11-06 22:08:55,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430704148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:55,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:55,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:55,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271309006] [2023-11-06 22:08:55,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:55,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:08:55,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:55,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:08:55,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:08:55,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 513 [2023-11-06 22:08:55,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 105 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:55,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:08:55,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 513 [2023-11-06 22:08:55,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:08:56,629 INFO L124 PetriNetUnfolderBase]: 3843/7960 cut-off events. [2023-11-06 22:08:56,629 INFO L125 PetriNetUnfolderBase]: For 452/452 co-relation queries the response was YES. [2023-11-06 22:08:56,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14520 conditions, 7960 events. 3843/7960 cut-off events. For 452/452 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 60508 event pairs, 1113 based on Foata normal form. 0/6742 useless extension candidates. Maximal degree in co-relation 14515. Up to 3159 conditions per place. [2023-11-06 22:08:56,704 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 91 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2023-11-06 22:08:56,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 148 transitions, 529 flow [2023-11-06 22:08:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:08:56,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:08:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 902 transitions. [2023-11-06 22:08:56,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860948667966212 [2023-11-06 22:08:56,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 902 transitions. [2023-11-06 22:08:56,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 902 transitions. [2023-11-06 22:08:56,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:08:56,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 902 transitions. [2023-11-06 22:08:56,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:56,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:56,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:56,719 INFO L175 Difference]: Start difference. First operand has 102 places, 105 transitions, 240 flow. Second operand 3 states and 902 transitions. [2023-11-06 22:08:56,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 148 transitions, 529 flow [2023-11-06 22:08:56,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 148 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:08:56,726 INFO L231 Difference]: Finished difference. Result has 104 places, 109 transitions, 266 flow [2023-11-06 22:08:56,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=104, PETRI_TRANSITIONS=109} [2023-11-06 22:08:56,727 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -8 predicate places. [2023-11-06 22:08:56,727 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 109 transitions, 266 flow [2023-11-06 22:08:56,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:56,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:08:56,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:56,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:08:56,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:08:56,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:56,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1598445224, now seen corresponding path program 1 times [2023-11-06 22:08:56,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:56,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685586756] [2023-11-06 22:08:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:56,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:08:56,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:56,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685586756] [2023-11-06 22:08:56,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685586756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:56,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:56,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861844564] [2023-11-06 22:08:56,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:56,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:08:56,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:56,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:08:56,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:08:56,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 513 [2023-11-06 22:08:56,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 109 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:56,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:08:56,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 513 [2023-11-06 22:08:56,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:08:58,178 INFO L124 PetriNetUnfolderBase]: 4652/9844 cut-off events. [2023-11-06 22:08:58,179 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2023-11-06 22:08:58,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18169 conditions, 9844 events. 4652/9844 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 75750 event pairs, 3413 based on Foata normal form. 0/8581 useless extension candidates. Maximal degree in co-relation 18163. Up to 7076 conditions per place. [2023-11-06 22:08:58,247 INFO L140 encePairwiseOnDemand]: 503/513 looper letters, 77 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2023-11-06 22:08:58,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 129 transitions, 478 flow [2023-11-06 22:08:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:08:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:08:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2023-11-06 22:08:58,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5523066926575698 [2023-11-06 22:08:58,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 850 transitions. [2023-11-06 22:08:58,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 850 transitions. [2023-11-06 22:08:58,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:08:58,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 850 transitions. [2023-11-06 22:08:58,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:58,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:58,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:58,261 INFO L175 Difference]: Start difference. First operand has 104 places, 109 transitions, 266 flow. Second operand 3 states and 850 transitions. [2023-11-06 22:08:58,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 129 transitions, 478 flow [2023-11-06 22:08:58,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 129 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:08:58,268 INFO L231 Difference]: Finished difference. Result has 102 places, 108 transitions, 284 flow [2023-11-06 22:08:58,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=102, PETRI_TRANSITIONS=108} [2023-11-06 22:08:58,269 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -10 predicate places. [2023-11-06 22:08:58,269 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 108 transitions, 284 flow [2023-11-06 22:08:58,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:58,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:08:58,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:58,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:08:58,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:08:58,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:58,272 INFO L85 PathProgramCache]: Analyzing trace with hash 451371129, now seen corresponding path program 1 times [2023-11-06 22:08:58,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:58,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870852662] [2023-11-06 22:08:58,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:58,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:08:58,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:58,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870852662] [2023-11-06 22:08:58,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870852662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:58,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:58,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:08:58,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453763555] [2023-11-06 22:08:58,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:58,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:08:58,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:58,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:08:58,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:08:58,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 513 [2023-11-06 22:08:58,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 108 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 266.6666666666667) internal successors, (1600), 6 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:58,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:08:58,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 513 [2023-11-06 22:08:58,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:04,797 INFO L124 PetriNetUnfolderBase]: 28440/51613 cut-off events. [2023-11-06 22:09:04,797 INFO L125 PetriNetUnfolderBase]: For 7065/7065 co-relation queries the response was YES. [2023-11-06 22:09:04,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101631 conditions, 51613 events. 28440/51613 cut-off events. For 7065/7065 co-relation queries the response was YES. Maximal size of possible extension queue 968. Compared 456151 event pairs, 8700 based on Foata normal form. 0/43963 useless extension candidates. Maximal degree in co-relation 101624. Up to 23808 conditions per place. [2023-11-06 22:09:05,182 INFO L140 encePairwiseOnDemand]: 506/513 looper letters, 245 selfloop transitions, 9 changer transitions 0/302 dead transitions. [2023-11-06 22:09:05,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 302 transitions, 1309 flow [2023-11-06 22:09:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:09:05,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:09:05,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1815 transitions. [2023-11-06 22:09:05,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5896686159844055 [2023-11-06 22:09:05,191 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1815 transitions. [2023-11-06 22:09:05,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1815 transitions. [2023-11-06 22:09:05,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:05,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1815 transitions. [2023-11-06 22:09:05,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 302.5) internal successors, (1815), 6 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:05,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 513.0) internal successors, (3591), 7 states have internal predecessors, (3591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:05,214 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 513.0) internal successors, (3591), 7 states have internal predecessors, (3591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:05,214 INFO L175 Difference]: Start difference. First operand has 102 places, 108 transitions, 284 flow. Second operand 6 states and 1815 transitions. [2023-11-06 22:09:05,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 302 transitions, 1309 flow [2023-11-06 22:09:05,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 302 transitions, 1275 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:09:05,341 INFO L231 Difference]: Finished difference. Result has 110 places, 116 transitions, 338 flow [2023-11-06 22:09:05,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=110, PETRI_TRANSITIONS=116} [2023-11-06 22:09:05,345 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -2 predicate places. [2023-11-06 22:09:05,346 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 116 transitions, 338 flow [2023-11-06 22:09:05,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 266.6666666666667) internal successors, (1600), 6 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:05,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:05,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:05,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:09:05,348 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:05,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1492409558, now seen corresponding path program 1 times [2023-11-06 22:09:05,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:05,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934133830] [2023-11-06 22:09:05,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:05,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:05,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:05,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934133830] [2023-11-06 22:09:05,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934133830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:05,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:05,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:05,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704319061] [2023-11-06 22:09:05,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:05,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:05,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:05,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:05,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 513 [2023-11-06 22:09:05,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 116 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:05,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:05,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 513 [2023-11-06 22:09:05,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:08,880 INFO L124 PetriNetUnfolderBase]: 13243/29136 cut-off events. [2023-11-06 22:09:08,881 INFO L125 PetriNetUnfolderBase]: For 2419/2558 co-relation queries the response was YES. [2023-11-06 22:09:09,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56788 conditions, 29136 events. 13243/29136 cut-off events. For 2419/2558 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 277298 event pairs, 2958 based on Foata normal form. 0/25057 useless extension candidates. Maximal degree in co-relation 56777. Up to 20571 conditions per place. [2023-11-06 22:09:09,113 INFO L140 encePairwiseOnDemand]: 506/513 looper letters, 87 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-11-06 22:09:09,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 579 flow [2023-11-06 22:09:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:09,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:09,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2023-11-06 22:09:09,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5633528265107213 [2023-11-06 22:09:09,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2023-11-06 22:09:09,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2023-11-06 22:09:09,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:09,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2023-11-06 22:09:09,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:09,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:09,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:09,409 INFO L175 Difference]: Start difference. First operand has 110 places, 116 transitions, 338 flow. Second operand 3 states and 867 transitions. [2023-11-06 22:09:09,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 579 flow [2023-11-06 22:09:09,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 142 transitions, 579 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:09:09,420 INFO L231 Difference]: Finished difference. Result has 108 places, 113 transitions, 342 flow [2023-11-06 22:09:09,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=108, PETRI_TRANSITIONS=113} [2023-11-06 22:09:09,425 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -4 predicate places. [2023-11-06 22:09:09,425 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 113 transitions, 342 flow [2023-11-06 22:09:09,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:09,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:09,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:09,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:09:09,426 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:09,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1137711664, now seen corresponding path program 1 times [2023-11-06 22:09:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:09,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439545765] [2023-11-06 22:09:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:09,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:09,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439545765] [2023-11-06 22:09:09,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439545765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:09,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:09,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:09,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244533195] [2023-11-06 22:09:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:09,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:09,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:09,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:09,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 513 [2023-11-06 22:09:09,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 113 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:09,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:09,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 513 [2023-11-06 22:09:09,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:12,451 INFO L124 PetriNetUnfolderBase]: 12206/27150 cut-off events. [2023-11-06 22:09:12,451 INFO L125 PetriNetUnfolderBase]: For 2497/2572 co-relation queries the response was YES. [2023-11-06 22:09:12,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53534 conditions, 27150 events. 12206/27150 cut-off events. For 2497/2572 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 262752 event pairs, 7505 based on Foata normal form. 0/23209 useless extension candidates. Maximal degree in co-relation 53522. Up to 18994 conditions per place. [2023-11-06 22:09:12,630 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 78 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2023-11-06 22:09:12,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 138 transitions, 570 flow [2023-11-06 22:09:12,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 879 transitions. [2023-11-06 22:09:12,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.571150097465887 [2023-11-06 22:09:12,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 879 transitions. [2023-11-06 22:09:12,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 879 transitions. [2023-11-06 22:09:12,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:12,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 879 transitions. [2023-11-06 22:09:12,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:12,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:12,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:12,646 INFO L175 Difference]: Start difference. First operand has 108 places, 113 transitions, 342 flow. Second operand 3 states and 879 transitions. [2023-11-06 22:09:12,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 138 transitions, 570 flow [2023-11-06 22:09:12,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 138 transitions, 570 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:09:12,653 INFO L231 Difference]: Finished difference. Result has 112 places, 116 transitions, 378 flow [2023-11-06 22:09:12,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=112, PETRI_TRANSITIONS=116} [2023-11-06 22:09:12,656 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 0 predicate places. [2023-11-06 22:09:12,656 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 116 transitions, 378 flow [2023-11-06 22:09:12,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:12,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:12,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:12,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:09:12,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:12,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1580254920, now seen corresponding path program 1 times [2023-11-06 22:09:12,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:12,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318540880] [2023-11-06 22:09:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:12,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:12,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:12,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318540880] [2023-11-06 22:09:12,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318540880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:12,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:12,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:12,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261904941] [2023-11-06 22:09:12,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:12,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:12,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:12,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:12,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:12,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 513 [2023-11-06 22:09:12,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 116 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:12,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:12,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 513 [2023-11-06 22:09:12,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:15,866 INFO L124 PetriNetUnfolderBase]: 11847/27017 cut-off events. [2023-11-06 22:09:15,866 INFO L125 PetriNetUnfolderBase]: For 4464/4590 co-relation queries the response was YES. [2023-11-06 22:09:15,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54545 conditions, 27017 events. 11847/27017 cut-off events. For 4464/4590 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 264440 event pairs, 7296 based on Foata normal form. 0/23262 useless extension candidates. Maximal degree in co-relation 54531. Up to 18559 conditions per place. [2023-11-06 22:09:16,063 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 84 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2023-11-06 22:09:16,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 147 transitions, 645 flow [2023-11-06 22:09:16,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 872 transitions. [2023-11-06 22:09:16,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666016894087069 [2023-11-06 22:09:16,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 872 transitions. [2023-11-06 22:09:16,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 872 transitions. [2023-11-06 22:09:16,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:16,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 872 transitions. [2023-11-06 22:09:16,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:16,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:16,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:16,076 INFO L175 Difference]: Start difference. First operand has 112 places, 116 transitions, 378 flow. Second operand 3 states and 872 transitions. [2023-11-06 22:09:16,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 147 transitions, 645 flow [2023-11-06 22:09:16,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 147 transitions, 627 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:09:16,100 INFO L231 Difference]: Finished difference. Result has 113 places, 117 transitions, 378 flow [2023-11-06 22:09:16,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=113, PETRI_TRANSITIONS=117} [2023-11-06 22:09:16,101 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 1 predicate places. [2023-11-06 22:09:16,101 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 117 transitions, 378 flow [2023-11-06 22:09:16,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:16,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:16,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:16,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:09:16,102 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:16,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:16,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1580252451, now seen corresponding path program 1 times [2023-11-06 22:09:16,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:16,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271400125] [2023-11-06 22:09:16,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:16,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:16,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:16,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271400125] [2023-11-06 22:09:16,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271400125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:16,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:16,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:16,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55670304] [2023-11-06 22:09:16,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:16,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:16,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:16,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:16,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:16,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 513 [2023-11-06 22:09:16,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 117 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:16,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:16,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 513 [2023-11-06 22:09:16,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:21,309 INFO L124 PetriNetUnfolderBase]: 18865/43869 cut-off events. [2023-11-06 22:09:21,309 INFO L125 PetriNetUnfolderBase]: For 8853/9577 co-relation queries the response was YES. [2023-11-06 22:09:21,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90458 conditions, 43869 events. 18865/43869 cut-off events. For 8853/9577 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 472678 event pairs, 9278 based on Foata normal form. 488/39662 useless extension candidates. Maximal degree in co-relation 90443. Up to 20535 conditions per place. [2023-11-06 22:09:21,618 INFO L140 encePairwiseOnDemand]: 509/513 looper letters, 102 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2023-11-06 22:09:21,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 165 transitions, 727 flow [2023-11-06 22:09:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-11-06 22:09:21,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5880441845354126 [2023-11-06 22:09:21,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-11-06 22:09:21,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-11-06 22:09:21,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:21,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-11-06 22:09:21,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:21,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:21,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:21,631 INFO L175 Difference]: Start difference. First operand has 113 places, 117 transitions, 378 flow. Second operand 3 states and 905 transitions. [2023-11-06 22:09:21,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 165 transitions, 727 flow [2023-11-06 22:09:21,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 165 transitions, 724 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:09:21,839 INFO L231 Difference]: Finished difference. Result has 115 places, 118 transitions, 392 flow [2023-11-06 22:09:21,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=115, PETRI_TRANSITIONS=118} [2023-11-06 22:09:21,840 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 3 predicate places. [2023-11-06 22:09:21,840 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 118 transitions, 392 flow [2023-11-06 22:09:21,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:21,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:21,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:21,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:09:21,842 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:21,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:21,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1927228483, now seen corresponding path program 1 times [2023-11-06 22:09:21,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:21,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847410923] [2023-11-06 22:09:21,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:21,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:21,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847410923] [2023-11-06 22:09:21,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847410923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:21,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:21,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:21,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704690585] [2023-11-06 22:09:21,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:21,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:21,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:21,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:21,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 513 [2023-11-06 22:09:21,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 118 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:21,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:21,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 513 [2023-11-06 22:09:21,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:27,029 INFO L124 PetriNetUnfolderBase]: 19454/44909 cut-off events. [2023-11-06 22:09:27,029 INFO L125 PetriNetUnfolderBase]: For 11119/11543 co-relation queries the response was YES. [2023-11-06 22:09:27,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96296 conditions, 44909 events. 19454/44909 cut-off events. For 11119/11543 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 481218 event pairs, 12580 based on Foata normal form. 126/41408 useless extension candidates. Maximal degree in co-relation 96280. Up to 31261 conditions per place. [2023-11-06 22:09:27,347 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 80 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2023-11-06 22:09:27,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 143 transitions, 638 flow [2023-11-06 22:09:27,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:27,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 868 transitions. [2023-11-06 22:09:27,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5640025990903184 [2023-11-06 22:09:27,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 868 transitions. [2023-11-06 22:09:27,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 868 transitions. [2023-11-06 22:09:27,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:27,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 868 transitions. [2023-11-06 22:09:27,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:27,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:27,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:27,358 INFO L175 Difference]: Start difference. First operand has 115 places, 118 transitions, 392 flow. Second operand 3 states and 868 transitions. [2023-11-06 22:09:27,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 143 transitions, 638 flow [2023-11-06 22:09:27,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 143 transitions, 634 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:09:27,425 INFO L231 Difference]: Finished difference. Result has 117 places, 119 transitions, 402 flow [2023-11-06 22:09:27,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2023-11-06 22:09:27,426 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 5 predicate places. [2023-11-06 22:09:27,426 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 402 flow [2023-11-06 22:09:27,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:27,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:27,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:27,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:09:27,427 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:27,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1698828295, now seen corresponding path program 1 times [2023-11-06 22:09:27,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:27,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552807967] [2023-11-06 22:09:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:27,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:27,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552807967] [2023-11-06 22:09:27,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552807967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:27,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:27,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:27,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300648618] [2023-11-06 22:09:27,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:27,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:27,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:27,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:27,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:27,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 513 [2023-11-06 22:09:27,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:27,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:27,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 513 [2023-11-06 22:09:27,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:36,540 INFO L124 PetriNetUnfolderBase]: 34285/75180 cut-off events. [2023-11-06 22:09:36,540 INFO L125 PetriNetUnfolderBase]: For 24038/25106 co-relation queries the response was YES. [2023-11-06 22:09:36,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169752 conditions, 75180 events. 34285/75180 cut-off events. For 24038/25106 co-relation queries the response was YES. Maximal size of possible extension queue 1503. Compared 822711 event pairs, 14684 based on Foata normal form. 213/70209 useless extension candidates. Maximal degree in co-relation 169735. Up to 34952 conditions per place. [2023-11-06 22:09:37,410 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 114 selfloop transitions, 8 changer transitions 0/176 dead transitions. [2023-11-06 22:09:37,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 176 transitions, 843 flow [2023-11-06 22:09:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-11-06 22:09:37,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5834957764782326 [2023-11-06 22:09:37,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-11-06 22:09:37,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-11-06 22:09:37,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:37,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-11-06 22:09:37,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:37,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:37,423 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:37,423 INFO L175 Difference]: Start difference. First operand has 117 places, 119 transitions, 402 flow. Second operand 3 states and 898 transitions. [2023-11-06 22:09:37,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 176 transitions, 843 flow [2023-11-06 22:09:37,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 176 transitions, 839 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:09:37,662 INFO L231 Difference]: Finished difference. Result has 120 places, 126 transitions, 482 flow [2023-11-06 22:09:37,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=120, PETRI_TRANSITIONS=126} [2023-11-06 22:09:37,662 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 8 predicate places. [2023-11-06 22:09:37,663 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 126 transitions, 482 flow [2023-11-06 22:09:37,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:37,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:37,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:37,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:09:37,663 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-06 22:09:37,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1982152454, now seen corresponding path program 1 times [2023-11-06 22:09:37,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:37,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969040453] [2023-11-06 22:09:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:37,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:09:37,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:37,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969040453] [2023-11-06 22:09:37,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969040453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:37,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:37,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:37,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931862813] [2023-11-06 22:09:37,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:37,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:37,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:37,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 513 [2023-11-06 22:09:37,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 126 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:37,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:37,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 513 [2023-11-06 22:09:37,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand