./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/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_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/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_c8b382d2-5005-4786-b420-6f83d36dbeae/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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:05:52,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:05:52,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:05:52,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:05:52,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:05:52,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:05:52,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:05:52,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:05:52,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:05:52,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:05:52,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:05:52,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:05:52,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:05:52,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:05:52,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:05:52,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:05:52,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:05:52,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:05:52,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:05:52,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:05:52,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:05:52,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:05:52,214 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:05:52,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:05:52,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:05:52,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:05:52,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:05:52,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:05:52,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:05:52,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:05:52,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:52,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:05:52,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:05:52,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:05:52,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:05:52,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:05:52,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:05:52,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:05:52,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:05:52,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:05:52,223 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:05:52,224 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_c8b382d2-5005-4786-b420-6f83d36dbeae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc [2023-11-06 23:05:52,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:05:52,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:05:52,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:05:52,700 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:05:52,704 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:05:52,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2023-11-06 23:05:56,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:05:56,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:05:56,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2023-11-06 23:05:56,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/data/9ec704bf0/927e7a0f6b9c4f83bafe2193fefb1c74/FLAG44c844d76 [2023-11-06 23:05:56,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/data/9ec704bf0/927e7a0f6b9c4f83bafe2193fefb1c74 [2023-11-06 23:05:56,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:05:56,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:05:56,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:56,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:05:56,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:05:56,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:56" (1/1) ... [2023-11-06 23:05:56,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77465177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:56, skipping insertion in model container [2023-11-06 23:05:56,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:56" (1/1) ... [2023-11-06 23:05:57,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:05:58,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:58,203 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:05:58,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:58,464 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:05:58,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58 WrapperNode [2023-11-06 23:05:58,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:58,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:58,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:05:58,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:05:58,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,559 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-11-06 23:05:58,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:58,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:05:58,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:05:58,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:05:58,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:05:58,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:05:58,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:05:58,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:05:58,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (1/1) ... [2023-11-06 23:05:58,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:58,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:58,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:05:58,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b382d2-5005-4786-b420-6f83d36dbeae/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:05:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:05:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:05:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:05:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:05:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:05:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:05:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:05:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:05:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:05:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:05:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:05:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:05:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:05:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:05:58,772 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 23:05:58,992 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:05:58,994 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:05:59,485 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:05:59,497 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:05:59,497 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:05:59,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:59 BoogieIcfgContainer [2023-11-06 23:05:59,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:05:59,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:05:59,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:05:59,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:05:59,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:05:56" (1/3) ... [2023-11-06 23:05:59,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cbbe67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:59, skipping insertion in model container [2023-11-06 23:05:59,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:58" (2/3) ... [2023-11-06 23:05:59,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cbbe67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:59, skipping insertion in model container [2023-11-06 23:05:59,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:59" (3/3) ... [2023-11-06 23:05:59,511 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2023-11-06 23:05:59,522 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:05:59,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:05:59,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 23:05:59,536 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:05:59,651 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:05:59,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 198 transitions, 400 flow [2023-11-06 23:05:59,900 INFO L124 PetriNetUnfolderBase]: 0/197 cut-off events. [2023-11-06 23:05:59,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:05:59,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 197 events. 0/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:05:59,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 198 transitions, 400 flow [2023-11-06 23:05:59,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 197 transitions, 397 flow [2023-11-06 23:05:59,926 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:05:59,938 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 197 transitions, 397 flow [2023-11-06 23:05:59,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 197 transitions, 397 flow [2023-11-06 23:05:59,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 197 transitions, 397 flow [2023-11-06 23:06:00,038 INFO L124 PetriNetUnfolderBase]: 0/197 cut-off events. [2023-11-06 23:06:00,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:06:00,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 197 events. 0/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:06:00,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 4288 [2023-11-06 23:06:55,340 WARN L293 SmtUtils]: Spent 26.58s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:03,371 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:21,846 WARN L293 SmtUtils]: Spent 18.47s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:37,341 WARN L293 SmtUtils]: Spent 15.49s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:48,690 WARN L293 SmtUtils]: Spent 11.33s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:08:02,619 WARN L293 SmtUtils]: Spent 13.92s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:08:30,494 WARN L293 SmtUtils]: Spent 27.87s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:08:46,501 WARN L293 SmtUtils]: Spent 16.00s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:08:46,506 INFO L134 LiptonReduction]: Checked pairs total: 35092 [2023-11-06 23:08:46,507 INFO L136 LiptonReduction]: Total number of compositions: 161 [2023-11-06 23:08:46,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:46,527 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;@56b0f42f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:46,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-06 23:08:46,529 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:08:46,529 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:08:46,529 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:46,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:46,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:08:46,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:46,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:46,536 INFO L85 PathProgramCache]: Analyzing trace with hash 644, now seen corresponding path program 1 times [2023-11-06 23:08:46,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:46,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307053314] [2023-11-06 23:08:46,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:46,670 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 23:08:46,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:46,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307053314] [2023-11-06 23:08:46,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307053314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:46,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:46,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:08:46,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747644739] [2023-11-06 23:08:46,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:46,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:08:46,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:08:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:08:46,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 359 [2023-11-06 23:08:46,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 197.5) internal successors, (395), 2 states have internal predecessors, (395), 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 23:08:46,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:46,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 359 [2023-11-06 23:08:46,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:46,872 INFO L124 PetriNetUnfolderBase]: 78/405 cut-off events. [2023-11-06 23:08:46,873 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:46,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1922 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2023-11-06 23:08:46,880 INFO L140 encePairwiseOnDemand]: 351/359 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-11-06 23:08:46,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-11-06 23:08:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:08:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:08:46,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 423 transitions. [2023-11-06 23:08:46,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5891364902506964 [2023-11-06 23:08:46,900 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 423 transitions. [2023-11-06 23:08:46,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 423 transitions. [2023-11-06 23:08:46,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:46,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 423 transitions. [2023-11-06 23:08:46,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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 23:08:46,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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 23:08:46,920 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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 23:08:46,922 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 423 transitions. [2023-11-06 23:08:46,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-11-06 23:08:46,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:08:46,930 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-11-06 23:08:46,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-11-06 23:08:46,937 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-11-06 23:08:46,937 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-11-06 23:08:46,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 197.5) internal successors, (395), 2 states have internal predecessors, (395), 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 23:08:46,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:46,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:08:46,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:08:46,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:46,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:46,940 INFO L85 PathProgramCache]: Analyzing trace with hash 623053051, now seen corresponding path program 1 times [2023-11-06 23:08:46,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:46,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590008234] [2023-11-06 23:08:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:47,242 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 23:08:47,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590008234] [2023-11-06 23:08:47,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590008234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:47,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:47,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:08:47,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306134896] [2023-11-06 23:08:47,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:47,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:47,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:47,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:47,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:47,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 359 [2023-11-06 23:08:47,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 23:08:47,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:47,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 359 [2023-11-06 23:08:47,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:47,471 INFO L124 PetriNetUnfolderBase]: 119/489 cut-off events. [2023-11-06 23:08:47,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:47,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2331 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2023-11-06 23:08:47,478 INFO L140 encePairwiseOnDemand]: 355/359 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-11-06 23:08:47,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-11-06 23:08:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:47,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:08:47,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2023-11-06 23:08:47,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.531104921077066 [2023-11-06 23:08:47,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 572 transitions. [2023-11-06 23:08:47,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 572 transitions. [2023-11-06 23:08:47,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:47,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 572 transitions. [2023-11-06 23:08:47,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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 23:08:47,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 23:08:47,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 23:08:47,499 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 572 transitions. [2023-11-06 23:08:47,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-11-06 23:08:47,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:08:47,508 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-11-06 23:08:47,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-11-06 23:08:47,509 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-11-06 23:08:47,509 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-11-06 23:08:47,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 23:08:47,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:47,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:47,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:08:47,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:47,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:47,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1153381016, now seen corresponding path program 1 times [2023-11-06 23:08:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:47,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734733523] [2023-11-06 23:08:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:48,210 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 23:08:48,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:48,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734733523] [2023-11-06 23:08:48,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734733523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:48,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:48,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:08:48,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216669738] [2023-11-06 23:08:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:48,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:08:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:08:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:48,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 359 [2023-11-06 23:08:48,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 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 23:08:48,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:48,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 359 [2023-11-06 23:08:48,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:49,017 INFO L124 PetriNetUnfolderBase]: 419/1084 cut-off events. [2023-11-06 23:08:49,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:49,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1084 events. 419/1084 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5325 event pairs, 312 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1972. Up to 802 conditions per place. [2023-11-06 23:08:49,026 INFO L140 encePairwiseOnDemand]: 345/359 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2023-11-06 23:08:49,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2023-11-06 23:08:49,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:08:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:08:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 980 transitions. [2023-11-06 23:08:49,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45496750232126276 [2023-11-06 23:08:49,032 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 980 transitions. [2023-11-06 23:08:49,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 980 transitions. [2023-11-06 23:08:49,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:49,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 980 transitions. [2023-11-06 23:08:49,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 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 23:08:49,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:08:49,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:08:49,045 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 980 transitions. [2023-11-06 23:08:49,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2023-11-06 23:08:49,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 122 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:08:49,050 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-11-06 23:08:49,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-11-06 23:08:49,051 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-11-06 23:08:49,051 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-11-06 23:08:49,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 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 23:08:49,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:49,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:49,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:08:49,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:49,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:49,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1500475632, now seen corresponding path program 1 times [2023-11-06 23:08:49,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385133155] [2023-11-06 23:08:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:49,457 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 23:08:49,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:49,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385133155] [2023-11-06 23:08:49,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385133155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:49,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:49,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:08:49,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634492253] [2023-11-06 23:08:49,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:49,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:08:49,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:49,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:08:49,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:49,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 359 [2023-11-06 23:08:49,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 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 23:08:49,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:49,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 359 [2023-11-06 23:08:49,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:50,495 INFO L124 PetriNetUnfolderBase]: 622/1669 cut-off events. [2023-11-06 23:08:50,495 INFO L125 PetriNetUnfolderBase]: For 233/246 co-relation queries the response was YES. [2023-11-06 23:08:50,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1669 events. 622/1669 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9981 event pairs, 78 based on Foata normal form. 0/1574 useless extension candidates. Maximal degree in co-relation 3622. Up to 707 conditions per place. [2023-11-06 23:08:50,512 INFO L140 encePairwiseOnDemand]: 331/359 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2023-11-06 23:08:50,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2023-11-06 23:08:50,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:08:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:08:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1060 transitions. [2023-11-06 23:08:50,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4921077065923863 [2023-11-06 23:08:50,517 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1060 transitions. [2023-11-06 23:08:50,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1060 transitions. [2023-11-06 23:08:50,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:50,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1060 transitions. [2023-11-06 23:08:50,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.66666666666666) internal successors, (1060), 6 states have internal predecessors, (1060), 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 23:08:50,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:08:50,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:08:50,530 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1060 transitions. [2023-11-06 23:08:50,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2023-11-06 23:08:50,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 246 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:08:50,543 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-11-06 23:08:50,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-11-06 23:08:50,545 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-11-06 23:08:50,545 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-11-06 23:08:50,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 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 23:08:50,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:50,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:50,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:08:50,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:50,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:50,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1153986736, now seen corresponding path program 1 times [2023-11-06 23:08:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:50,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333040954] [2023-11-06 23:08:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:51,230 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 23:08:51,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333040954] [2023-11-06 23:08:51,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333040954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:51,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:51,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:08:51,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465314533] [2023-11-06 23:08:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:51,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:08:51,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:08:51,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:08:52,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 359 [2023-11-06 23:08:52,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 143.2) internal successors, (1432), 10 states have internal predecessors, (1432), 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 23:08:52,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:52,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 359 [2023-11-06 23:08:52,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:53,875 INFO L124 PetriNetUnfolderBase]: 742/1898 cut-off events. [2023-11-06 23:08:53,875 INFO L125 PetriNetUnfolderBase]: For 1407/1416 co-relation queries the response was YES. [2023-11-06 23:08:53,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5643 conditions, 1898 events. 742/1898 cut-off events. For 1407/1416 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11259 event pairs, 228 based on Foata normal form. 0/1827 useless extension candidates. Maximal degree in co-relation 5630. Up to 899 conditions per place. [2023-11-06 23:08:53,898 INFO L140 encePairwiseOnDemand]: 344/359 looper letters, 237 selfloop transitions, 66 changer transitions 2/339 dead transitions. [2023-11-06 23:08:53,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 339 transitions, 2339 flow [2023-11-06 23:08:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 23:08:53,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-06 23:08:53,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2318 transitions. [2023-11-06 23:08:53,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43045496750232126 [2023-11-06 23:08:53,978 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2318 transitions. [2023-11-06 23:08:53,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2318 transitions. [2023-11-06 23:08:53,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:53,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2318 transitions. [2023-11-06 23:08:53,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 154.53333333333333) internal successors, (2318), 15 states have internal predecessors, (2318), 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 23:08:53,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 359.0) internal successors, (5744), 16 states have internal predecessors, (5744), 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 23:08:54,000 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 359.0) internal successors, (5744), 16 states have internal predecessors, (5744), 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 23:08:54,001 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2318 transitions. [2023-11-06 23:08:54,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 339 transitions, 2339 flow [2023-11-06 23:08:54,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 339 transitions, 2321 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-06 23:08:54,023 INFO L231 Difference]: Finished difference. Result has 104 places, 205 transitions, 1309 flow [2023-11-06 23:08:54,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1309, PETRI_PLACES=104, PETRI_TRANSITIONS=205} [2023-11-06 23:08:54,027 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-11-06 23:08:54,027 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 205 transitions, 1309 flow [2023-11-06 23:08:54,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 143.2) internal successors, (1432), 10 states have internal predecessors, (1432), 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 23:08:54,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:54,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:54,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:08:54,029 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:54,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -960127354, now seen corresponding path program 1 times [2023-11-06 23:08:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:54,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907748369] [2023-11-06 23:08:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:54,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:54,695 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 23:08:54,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:54,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907748369] [2023-11-06 23:08:54,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907748369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:54,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:54,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:08:54,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383325532] [2023-11-06 23:08:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:54,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:08:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:54,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:08:54,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:08:55,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 359 [2023-11-06 23:08:55,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 205 transitions, 1309 flow. Second operand has 10 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 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 23:08:55,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:55,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 359 [2023-11-06 23:08:55,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:57,234 INFO L124 PetriNetUnfolderBase]: 615/1713 cut-off events. [2023-11-06 23:08:57,234 INFO L125 PetriNetUnfolderBase]: For 1636/1644 co-relation queries the response was YES. [2023-11-06 23:08:57,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5464 conditions, 1713 events. 615/1713 cut-off events. For 1636/1644 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10470 event pairs, 61 based on Foata normal form. 24/1657 useless extension candidates. Maximal degree in co-relation 5445. Up to 423 conditions per place. [2023-11-06 23:08:57,252 INFO L140 encePairwiseOnDemand]: 338/359 looper letters, 309 selfloop transitions, 94 changer transitions 3/446 dead transitions. [2023-11-06 23:08:57,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 446 transitions, 3352 flow [2023-11-06 23:08:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-06 23:08:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-06 23:08:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4064 transitions. [2023-11-06 23:08:57,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4192716393273496 [2023-11-06 23:08:57,270 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4064 transitions. [2023-11-06 23:08:57,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4064 transitions. [2023-11-06 23:08:57,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:57,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4064 transitions. [2023-11-06 23:08:57,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 150.5185185185185) internal successors, (4064), 27 states have internal predecessors, (4064), 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 23:08:57,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 359.0) internal successors, (10052), 28 states have internal predecessors, (10052), 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 23:08:57,307 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 359.0) internal successors, (10052), 28 states have internal predecessors, (10052), 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 23:08:57,308 INFO L175 Difference]: Start difference. First operand has 104 places, 205 transitions, 1309 flow. Second operand 27 states and 4064 transitions. [2023-11-06 23:08:57,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 446 transitions, 3352 flow [2023-11-06 23:08:57,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 446 transitions, 3346 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-06 23:08:57,336 INFO L231 Difference]: Finished difference. Result has 143 places, 255 transitions, 1953 flow [2023-11-06 23:08:57,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1953, PETRI_PLACES=143, PETRI_TRANSITIONS=255} [2023-11-06 23:08:57,339 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 66 predicate places. [2023-11-06 23:08:57,339 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 255 transitions, 1953 flow [2023-11-06 23:08:57,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 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 23:08:57,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:57,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:57,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:08:57,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:57,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1801199342, now seen corresponding path program 1 times [2023-11-06 23:08:57,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:57,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097509132] [2023-11-06 23:08:57,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:57,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:57,765 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 23:08:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:57,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097509132] [2023-11-06 23:08:57,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097509132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:57,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:57,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:08:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62669105] [2023-11-06 23:08:57,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:57,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:08:57,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:57,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:08:57,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:58,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 359 [2023-11-06 23:08:58,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 255 transitions, 1953 flow. Second operand has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 23:08:58,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:58,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 359 [2023-11-06 23:08:58,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:58,658 INFO L124 PetriNetUnfolderBase]: 867/2208 cut-off events. [2023-11-06 23:08:58,658 INFO L125 PetriNetUnfolderBase]: For 4182/4220 co-relation queries the response was YES. [2023-11-06 23:08:58,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8058 conditions, 2208 events. 867/2208 cut-off events. For 4182/4220 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13483 event pairs, 321 based on Foata normal form. 0/2110 useless extension candidates. Maximal degree in co-relation 8026. Up to 1736 conditions per place. [2023-11-06 23:08:58,692 INFO L140 encePairwiseOnDemand]: 345/359 looper letters, 227 selfloop transitions, 44 changer transitions 0/318 dead transitions. [2023-11-06 23:08:58,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 318 transitions, 2855 flow [2023-11-06 23:08:58,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:08:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:08:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 981 transitions. [2023-11-06 23:08:58,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4554317548746518 [2023-11-06 23:08:58,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 981 transitions. [2023-11-06 23:08:58,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 981 transitions. [2023-11-06 23:08:58,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:58,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 981 transitions. [2023-11-06 23:08:58,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 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 23:08:58,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:08:58,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:08:58,708 INFO L175 Difference]: Start difference. First operand has 143 places, 255 transitions, 1953 flow. Second operand 6 states and 981 transitions. [2023-11-06 23:08:58,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 318 transitions, 2855 flow [2023-11-06 23:08:58,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 318 transitions, 2829 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-06 23:08:58,812 INFO L231 Difference]: Finished difference. Result has 150 places, 294 transitions, 2369 flow [2023-11-06 23:08:58,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2369, PETRI_PLACES=150, PETRI_TRANSITIONS=294} [2023-11-06 23:08:58,814 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 73 predicate places. [2023-11-06 23:08:58,815 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 294 transitions, 2369 flow [2023-11-06 23:08:58,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 23:08:58,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:58,816 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 23:08:58,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:08:58,816 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:08:58,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1587112900, now seen corresponding path program 1 times [2023-11-06 23:08:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685389121] [2023-11-06 23:08:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:59,174 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 23:08:59,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:59,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685389121] [2023-11-06 23:08:59,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685389121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:59,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:59,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:08:59,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890533643] [2023-11-06 23:08:59,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:59,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:08:59,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:59,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:08:59,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:59,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 359 [2023-11-06 23:08:59,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 294 transitions, 2369 flow. Second operand has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 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 23:08:59,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:59,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 359 [2023-11-06 23:08:59,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:00,867 INFO L124 PetriNetUnfolderBase]: 1073/2694 cut-off events. [2023-11-06 23:09:00,867 INFO L125 PetriNetUnfolderBase]: For 5140/5217 co-relation queries the response was YES. [2023-11-06 23:09:00,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10025 conditions, 2694 events. 1073/2694 cut-off events. For 5140/5217 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 17265 event pairs, 142 based on Foata normal form. 9/2618 useless extension candidates. Maximal degree in co-relation 9988. Up to 1637 conditions per place. [2023-11-06 23:09:00,904 INFO L140 encePairwiseOnDemand]: 336/359 looper letters, 262 selfloop transitions, 156 changer transitions 4/501 dead transitions. [2023-11-06 23:09:00,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 501 transitions, 4620 flow [2023-11-06 23:09:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:09:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:09:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1062 transitions. [2023-11-06 23:09:00,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49303621169916434 [2023-11-06 23:09:00,910 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1062 transitions. [2023-11-06 23:09:00,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1062 transitions. [2023-11-06 23:09:00,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:00,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1062 transitions. [2023-11-06 23:09:00,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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 23:09:00,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:09:00,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 23:09:00,921 INFO L175 Difference]: Start difference. First operand has 150 places, 294 transitions, 2369 flow. Second operand 6 states and 1062 transitions. [2023-11-06 23:09:00,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 501 transitions, 4620 flow [2023-11-06 23:09:00,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 501 transitions, 4532 flow, removed 44 selfloop flow, removed 0 redundant places. [2023-11-06 23:09:00,971 INFO L231 Difference]: Finished difference. Result has 160 places, 434 transitions, 4023 flow [2023-11-06 23:09:00,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=2281, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4023, PETRI_PLACES=160, PETRI_TRANSITIONS=434} [2023-11-06 23:09:00,972 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 83 predicate places. [2023-11-06 23:09:00,972 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 434 transitions, 4023 flow [2023-11-06 23:09:00,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 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 23:09:00,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:00,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:00,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 23:09:00,974 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:00,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:00,975 INFO L85 PathProgramCache]: Analyzing trace with hash -417010468, now seen corresponding path program 1 times [2023-11-06 23:09:00,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:00,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582775891] [2023-11-06 23:09:00,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:00,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:01,666 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 23:09:01,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:01,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582775891] [2023-11-06 23:09:01,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582775891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:01,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:01,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:09:01,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317649325] [2023-11-06 23:09:01,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:01,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:09:01,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:01,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:09:01,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:09:02,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 359 [2023-11-06 23:09:02,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 434 transitions, 4023 flow. Second operand has 10 states, 10 states have (on average 143.5) internal successors, (1435), 10 states have internal predecessors, (1435), 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 23:09:02,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:02,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 359 [2023-11-06 23:09:02,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:04,415 INFO L124 PetriNetUnfolderBase]: 1156/2793 cut-off events. [2023-11-06 23:09:04,416 INFO L125 PetriNetUnfolderBase]: For 8474/8521 co-relation queries the response was YES. [2023-11-06 23:09:04,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12478 conditions, 2793 events. 1156/2793 cut-off events. For 8474/8521 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 17563 event pairs, 193 based on Foata normal form. 6/2734 useless extension candidates. Maximal degree in co-relation 12436. Up to 1327 conditions per place. [2023-11-06 23:09:04,464 INFO L140 encePairwiseOnDemand]: 344/359 looper letters, 385 selfloop transitions, 112 changer transitions 2/574 dead transitions. [2023-11-06 23:09:04,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 574 transitions, 6012 flow [2023-11-06 23:09:04,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 23:09:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-06 23:09:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2321 transitions. [2023-11-06 23:09:04,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43101207056638813 [2023-11-06 23:09:04,473 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2321 transitions. [2023-11-06 23:09:04,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2321 transitions. [2023-11-06 23:09:04,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:04,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2321 transitions. [2023-11-06 23:09:04,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 154.73333333333332) internal successors, (2321), 15 states have internal predecessors, (2321), 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 23:09:04,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 359.0) internal successors, (5744), 16 states have internal predecessors, (5744), 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 23:09:04,545 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 359.0) internal successors, (5744), 16 states have internal predecessors, (5744), 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 23:09:04,545 INFO L175 Difference]: Start difference. First operand has 160 places, 434 transitions, 4023 flow. Second operand 15 states and 2321 transitions. [2023-11-06 23:09:04,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 574 transitions, 6012 flow [2023-11-06 23:09:04,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 574 transitions, 5868 flow, removed 72 selfloop flow, removed 0 redundant places. [2023-11-06 23:09:04,646 INFO L231 Difference]: Finished difference. Result has 178 places, 464 transitions, 4523 flow [2023-11-06 23:09:04,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=3903, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4523, PETRI_PLACES=178, PETRI_TRANSITIONS=464} [2023-11-06 23:09:04,647 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 101 predicate places. [2023-11-06 23:09:04,648 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 464 transitions, 4523 flow [2023-11-06 23:09:04,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 143.5) internal successors, (1435), 10 states have internal predecessors, (1435), 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 23:09:04,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:04,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:04,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:09:04,650 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:04,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1585548745, now seen corresponding path program 1 times [2023-11-06 23:09:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657501521] [2023-11-06 23:09:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:04,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:05,853 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 23:09:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657501521] [2023-11-06 23:09:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657501521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:05,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744018339] [2023-11-06 23:09:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:05,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:05,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:07,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:07,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 464 transitions, 4523 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:07,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:07,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:07,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:09,732 INFO L124 PetriNetUnfolderBase]: 2389/5576 cut-off events. [2023-11-06 23:09:09,732 INFO L125 PetriNetUnfolderBase]: For 19925/20043 co-relation queries the response was YES. [2023-11-06 23:09:09,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25652 conditions, 5576 events. 2389/5576 cut-off events. For 19925/20043 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 40143 event pairs, 372 based on Foata normal form. 8/5472 useless extension candidates. Maximal degree in co-relation 25605. Up to 2562 conditions per place. [2023-11-06 23:09:09,825 INFO L140 encePairwiseOnDemand]: 342/359 looper letters, 794 selfloop transitions, 99 changer transitions 0/982 dead transitions. [2023-11-06 23:09:09,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 982 transitions, 11112 flow [2023-11-06 23:09:09,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 23:09:09,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-06 23:09:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2208 transitions. [2023-11-06 23:09:09,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38440111420612816 [2023-11-06 23:09:09,835 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2208 transitions. [2023-11-06 23:09:09,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2208 transitions. [2023-11-06 23:09:09,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:09,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2208 transitions. [2023-11-06 23:09:09,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 138.0) internal successors, (2208), 16 states have internal predecessors, (2208), 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 23:09:09,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 359.0) internal successors, (6103), 17 states have internal predecessors, (6103), 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 23:09:09,855 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 359.0) internal successors, (6103), 17 states have internal predecessors, (6103), 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 23:09:09,855 INFO L175 Difference]: Start difference. First operand has 178 places, 464 transitions, 4523 flow. Second operand 16 states and 2208 transitions. [2023-11-06 23:09:09,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 982 transitions, 11112 flow [2023-11-06 23:09:10,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 982 transitions, 10990 flow, removed 26 selfloop flow, removed 3 redundant places. [2023-11-06 23:09:10,043 INFO L231 Difference]: Finished difference. Result has 201 places, 557 transitions, 5771 flow [2023-11-06 23:09:10,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=4443, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5771, PETRI_PLACES=201, PETRI_TRANSITIONS=557} [2023-11-06 23:09:10,048 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 124 predicate places. [2023-11-06 23:09:10,049 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 557 transitions, 5771 flow [2023-11-06 23:09:10,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:10,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:10,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:10,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 23:09:10,050 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:10,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash 660075215, now seen corresponding path program 2 times [2023-11-06 23:09:10,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:10,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608265743] [2023-11-06 23:09:10,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:10,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:11,222 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 23:09:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:11,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608265743] [2023-11-06 23:09:11,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608265743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:11,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:11,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650247712] [2023-11-06 23:09:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:11,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:11,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:11,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:11,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:12,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:12,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 557 transitions, 5771 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:12,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:12,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:12,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:15,889 INFO L124 PetriNetUnfolderBase]: 2443/5623 cut-off events. [2023-11-06 23:09:15,889 INFO L125 PetriNetUnfolderBase]: For 22713/22851 co-relation queries the response was YES. [2023-11-06 23:09:15,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27574 conditions, 5623 events. 2443/5623 cut-off events. For 22713/22851 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 40195 event pairs, 388 based on Foata normal form. 4/5505 useless extension candidates. Maximal degree in co-relation 27515. Up to 1998 conditions per place. [2023-11-06 23:09:15,990 INFO L140 encePairwiseOnDemand]: 340/359 looper letters, 456 selfloop transitions, 175 changer transitions 0/720 dead transitions. [2023-11-06 23:09:15,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 720 transitions, 8404 flow [2023-11-06 23:09:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 23:09:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-06 23:09:15,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2023-11-06 23:09:16,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3814608480346642 [2023-11-06 23:09:16,001 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2023-11-06 23:09:16,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2023-11-06 23:09:16,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:16,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2023-11-06 23:09:16,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.94444444444446) internal successors, (2465), 18 states have internal predecessors, (2465), 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 23:09:16,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 359.0) internal successors, (6821), 19 states have internal predecessors, (6821), 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 23:09:16,147 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 359.0) internal successors, (6821), 19 states have internal predecessors, (6821), 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 23:09:16,147 INFO L175 Difference]: Start difference. First operand has 201 places, 557 transitions, 5771 flow. Second operand 18 states and 2465 transitions. [2023-11-06 23:09:16,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 720 transitions, 8404 flow [2023-11-06 23:09:16,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 720 transitions, 8392 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-11-06 23:09:16,387 INFO L231 Difference]: Finished difference. Result has 226 places, 591 transitions, 6639 flow [2023-11-06 23:09:16,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=5759, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6639, PETRI_PLACES=226, PETRI_TRANSITIONS=591} [2023-11-06 23:09:16,388 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 149 predicate places. [2023-11-06 23:09:16,389 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 591 transitions, 6639 flow [2023-11-06 23:09:16,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:16,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:16,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:16,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 23:09:16,390 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:16,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1225222601, now seen corresponding path program 3 times [2023-11-06 23:09:16,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:16,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910259190] [2023-11-06 23:09:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:16,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:17,427 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 23:09:17,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:17,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910259190] [2023-11-06 23:09:17,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910259190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:17,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:17,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682972869] [2023-11-06 23:09:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:17,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:18,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:18,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 591 transitions, 6639 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:18,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:18,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:18,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:21,222 INFO L124 PetriNetUnfolderBase]: 2492/5720 cut-off events. [2023-11-06 23:09:21,223 INFO L125 PetriNetUnfolderBase]: For 29207/29348 co-relation queries the response was YES. [2023-11-06 23:09:21,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29931 conditions, 5720 events. 2492/5720 cut-off events. For 29207/29348 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 40816 event pairs, 394 based on Foata normal form. 12/5614 useless extension candidates. Maximal degree in co-relation 29863. Up to 1998 conditions per place. [2023-11-06 23:09:21,311 INFO L140 encePairwiseOnDemand]: 343/359 looper letters, 585 selfloop transitions, 137 changer transitions 0/811 dead transitions. [2023-11-06 23:09:21,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 811 transitions, 10451 flow [2023-11-06 23:09:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 23:09:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-06 23:09:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2194 transitions. [2023-11-06 23:09:21,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38196378830083566 [2023-11-06 23:09:21,318 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2194 transitions. [2023-11-06 23:09:21,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2194 transitions. [2023-11-06 23:09:21,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:21,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2194 transitions. [2023-11-06 23:09:21,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 137.125) internal successors, (2194), 16 states have internal predecessors, (2194), 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 23:09:21,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 359.0) internal successors, (6103), 17 states have internal predecessors, (6103), 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 23:09:21,335 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 359.0) internal successors, (6103), 17 states have internal predecessors, (6103), 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 23:09:21,336 INFO L175 Difference]: Start difference. First operand has 226 places, 591 transitions, 6639 flow. Second operand 16 states and 2194 transitions. [2023-11-06 23:09:21,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 811 transitions, 10451 flow [2023-11-06 23:09:21,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 811 transitions, 10252 flow, removed 44 selfloop flow, removed 5 redundant places. [2023-11-06 23:09:21,648 INFO L231 Difference]: Finished difference. Result has 245 places, 647 transitions, 7752 flow [2023-11-06 23:09:21,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=6458, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7752, PETRI_PLACES=245, PETRI_TRANSITIONS=647} [2023-11-06 23:09:21,649 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 168 predicate places. [2023-11-06 23:09:21,650 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 647 transitions, 7752 flow [2023-11-06 23:09:21,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:21,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:21,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:21,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 23:09:21,651 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:21,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash 45989559, now seen corresponding path program 4 times [2023-11-06 23:09:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:21,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631013004] [2023-11-06 23:09:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:21,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:22,631 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 23:09:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:22,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631013004] [2023-11-06 23:09:22,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631013004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:22,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:22,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:22,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48686294] [2023-11-06 23:09:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:22,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:24,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:24,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 647 transitions, 7752 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:24,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:24,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:24,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:27,903 INFO L124 PetriNetUnfolderBase]: 2503/5747 cut-off events. [2023-11-06 23:09:27,904 INFO L125 PetriNetUnfolderBase]: For 34010/34149 co-relation queries the response was YES. [2023-11-06 23:09:27,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31204 conditions, 5747 events. 2503/5747 cut-off events. For 34010/34149 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 41090 event pairs, 385 based on Foata normal form. 6/5631 useless extension candidates. Maximal degree in co-relation 31126. Up to 1998 conditions per place. [2023-11-06 23:09:27,993 INFO L140 encePairwiseOnDemand]: 340/359 looper letters, 443 selfloop transitions, 253 changer transitions 0/785 dead transitions. [2023-11-06 23:09:27,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 785 transitions, 10349 flow [2023-11-06 23:09:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 23:09:27,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-06 23:09:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2023-11-06 23:09:28,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.383008356545961 [2023-11-06 23:09:28,000 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2475 transitions. [2023-11-06 23:09:28,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2475 transitions. [2023-11-06 23:09:28,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:28,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2475 transitions. [2023-11-06 23:09:28,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.5) internal successors, (2475), 18 states have internal predecessors, (2475), 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 23:09:28,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 359.0) internal successors, (6821), 19 states have internal predecessors, (6821), 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 23:09:28,019 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 359.0) internal successors, (6821), 19 states have internal predecessors, (6821), 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 23:09:28,019 INFO L175 Difference]: Start difference. First operand has 245 places, 647 transitions, 7752 flow. Second operand 18 states and 2475 transitions. [2023-11-06 23:09:28,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 785 transitions, 10349 flow [2023-11-06 23:09:28,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 785 transitions, 10080 flow, removed 106 selfloop flow, removed 3 redundant places. [2023-11-06 23:09:28,395 INFO L231 Difference]: Finished difference. Result has 264 places, 658 transitions, 8256 flow [2023-11-06 23:09:28,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=7491, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8256, PETRI_PLACES=264, PETRI_TRANSITIONS=658} [2023-11-06 23:09:28,397 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 187 predicate places. [2023-11-06 23:09:28,397 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 658 transitions, 8256 flow [2023-11-06 23:09:28,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:28,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:28,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:28,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:09:28,399 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:28,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash -179767297, now seen corresponding path program 5 times [2023-11-06 23:09:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:28,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050776968] [2023-11-06 23:09:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:28,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:29,315 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 23:09:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050776968] [2023-11-06 23:09:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050776968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:29,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317798095] [2023-11-06 23:09:29,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:29,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:29,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:29,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:30,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:30,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 658 transitions, 8256 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:30,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:30,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:30,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:33,771 INFO L124 PetriNetUnfolderBase]: 2510/5763 cut-off events. [2023-11-06 23:09:33,771 INFO L125 PetriNetUnfolderBase]: For 37439/37578 co-relation queries the response was YES. [2023-11-06 23:09:33,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32036 conditions, 5763 events. 2510/5763 cut-off events. For 37439/37578 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 41224 event pairs, 385 based on Foata normal form. 6/5647 useless extension candidates. Maximal degree in co-relation 31952. Up to 1998 conditions per place. [2023-11-06 23:09:33,866 INFO L140 encePairwiseOnDemand]: 340/359 looper letters, 516 selfloop transitions, 208 changer transitions 0/813 dead transitions. [2023-11-06 23:09:33,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 813 transitions, 11456 flow [2023-11-06 23:09:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 23:09:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 23:09:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2332 transitions. [2023-11-06 23:09:33,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3821071604129117 [2023-11-06 23:09:33,874 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2332 transitions. [2023-11-06 23:09:33,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2332 transitions. [2023-11-06 23:09:33,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:33,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2332 transitions. [2023-11-06 23:09:33,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 137.1764705882353) internal successors, (2332), 17 states have internal predecessors, (2332), 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 23:09:33,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 359.0) internal successors, (6462), 18 states have internal predecessors, (6462), 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 23:09:33,893 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 359.0) internal successors, (6462), 18 states have internal predecessors, (6462), 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 23:09:33,894 INFO L175 Difference]: Start difference. First operand has 264 places, 658 transitions, 8256 flow. Second operand 17 states and 2332 transitions. [2023-11-06 23:09:33,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 813 transitions, 11456 flow [2023-11-06 23:09:34,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 813 transitions, 11122 flow, removed 24 selfloop flow, removed 10 redundant places. [2023-11-06 23:09:34,277 INFO L231 Difference]: Finished difference. Result has 277 places, 691 transitions, 9146 flow [2023-11-06 23:09:34,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=7955, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9146, PETRI_PLACES=277, PETRI_TRANSITIONS=691} [2023-11-06 23:09:34,279 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 200 predicate places. [2023-11-06 23:09:34,279 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 691 transitions, 9146 flow [2023-11-06 23:09:34,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:34,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:34,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:34,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 23:09:34,280 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:34,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1836691833, now seen corresponding path program 6 times [2023-11-06 23:09:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:34,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413339178] [2023-11-06 23:09:34,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:35,215 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 23:09:35,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:35,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413339178] [2023-11-06 23:09:35,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413339178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:35,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:35,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735407751] [2023-11-06 23:09:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:35,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:35,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:35,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:37,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:37,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 691 transitions, 9146 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:37,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:37,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:37,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:40,379 INFO L124 PetriNetUnfolderBase]: 2516/5777 cut-off events. [2023-11-06 23:09:40,379 INFO L125 PetriNetUnfolderBase]: For 41984/42123 co-relation queries the response was YES. [2023-11-06 23:09:40,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33003 conditions, 5777 events. 2516/5777 cut-off events. For 41984/42123 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 41396 event pairs, 383 based on Foata normal form. 6/5661 useless extension candidates. Maximal degree in co-relation 32912. Up to 1998 conditions per place. [2023-11-06 23:09:40,487 INFO L140 encePairwiseOnDemand]: 340/359 looper letters, 454 selfloop transitions, 292 changer transitions 0/835 dead transitions. [2023-11-06 23:09:40,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 835 transitions, 12078 flow [2023-11-06 23:09:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 23:09:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-06 23:09:40,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2609 transitions. [2023-11-06 23:09:40,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38249523530274154 [2023-11-06 23:09:40,494 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2609 transitions. [2023-11-06 23:09:40,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2609 transitions. [2023-11-06 23:09:40,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:40,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2609 transitions. [2023-11-06 23:09:40,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.31578947368422) internal successors, (2609), 19 states have internal predecessors, (2609), 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 23:09:40,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 359.0) internal successors, (7180), 20 states have internal predecessors, (7180), 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 23:09:40,511 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 359.0) internal successors, (7180), 20 states have internal predecessors, (7180), 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 23:09:40,511 INFO L175 Difference]: Start difference. First operand has 277 places, 691 transitions, 9146 flow. Second operand 19 states and 2609 transitions. [2023-11-06 23:09:40,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 835 transitions, 12078 flow [2023-11-06 23:09:40,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 835 transitions, 11781 flow, removed 108 selfloop flow, removed 5 redundant places. [2023-11-06 23:09:40,902 INFO L231 Difference]: Finished difference. Result has 295 places, 708 transitions, 9982 flow [2023-11-06 23:09:40,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=8849, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9982, PETRI_PLACES=295, PETRI_TRANSITIONS=708} [2023-11-06 23:09:40,903 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 218 predicate places. [2023-11-06 23:09:40,903 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 708 transitions, 9982 flow [2023-11-06 23:09:40,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:40,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:40,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:40,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 23:09:40,904 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:40,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:40,905 INFO L85 PathProgramCache]: Analyzing trace with hash -440806767, now seen corresponding path program 7 times [2023-11-06 23:09:40,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:40,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876731174] [2023-11-06 23:09:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:40,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:41,784 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 23:09:41,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:41,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876731174] [2023-11-06 23:09:41,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876731174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:41,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:41,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:41,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497937650] [2023-11-06 23:09:41,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:41,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:41,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:41,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:41,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:43,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:43,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 708 transitions, 9982 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:43,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:43,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:43,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:47,293 INFO L124 PetriNetUnfolderBase]: 2532/5814 cut-off events. [2023-11-06 23:09:47,293 INFO L125 PetriNetUnfolderBase]: For 49245/49384 co-relation queries the response was YES. [2023-11-06 23:09:47,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34332 conditions, 5814 events. 2532/5814 cut-off events. For 49245/49384 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 41713 event pairs, 385 based on Foata normal form. 6/5698 useless extension candidates. Maximal degree in co-relation 34236. Up to 1998 conditions per place. [2023-11-06 23:09:47,373 INFO L140 encePairwiseOnDemand]: 340/359 looper letters, 462 selfloop transitions, 307 changer transitions 0/858 dead transitions. [2023-11-06 23:09:47,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 858 transitions, 13031 flow [2023-11-06 23:09:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-06 23:09:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-06 23:09:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2868 transitions. [2023-11-06 23:09:47,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3804218066056506 [2023-11-06 23:09:47,380 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2868 transitions. [2023-11-06 23:09:47,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2868 transitions. [2023-11-06 23:09:47,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:47,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2868 transitions. [2023-11-06 23:09:47,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 136.57142857142858) internal successors, (2868), 21 states have internal predecessors, (2868), 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 23:09:47,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 359.0) internal successors, (7898), 22 states have internal predecessors, (7898), 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 23:09:47,397 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 359.0) internal successors, (7898), 22 states have internal predecessors, (7898), 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 23:09:47,397 INFO L175 Difference]: Start difference. First operand has 295 places, 708 transitions, 9982 flow. Second operand 21 states and 2868 transitions. [2023-11-06 23:09:47,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 858 transitions, 13031 flow [2023-11-06 23:09:47,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 858 transitions, 12561 flow, removed 74 selfloop flow, removed 11 redundant places. [2023-11-06 23:09:47,804 INFO L231 Difference]: Finished difference. Result has 311 places, 725 transitions, 10722 flow [2023-11-06 23:09:47,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=9542, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=290, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10722, PETRI_PLACES=311, PETRI_TRANSITIONS=725} [2023-11-06 23:09:47,805 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 234 predicate places. [2023-11-06 23:09:47,805 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 725 transitions, 10722 flow [2023-11-06 23:09:47,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:47,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:47,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:47,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 23:09:47,806 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:47,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1651208449, now seen corresponding path program 8 times [2023-11-06 23:09:47,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:47,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491094920] [2023-11-06 23:09:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:48,660 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 23:09:48,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:48,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491094920] [2023-11-06 23:09:48,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491094920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:48,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:48,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:48,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667443852] [2023-11-06 23:09:48,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:48,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:48,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:48,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:48,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:50,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 359 [2023-11-06 23:09:50,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 725 transitions, 10722 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:50,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:50,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 359 [2023-11-06 23:09:50,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:54,122 INFO L124 PetriNetUnfolderBase]: 2556/5865 cut-off events. [2023-11-06 23:09:54,122 INFO L125 PetriNetUnfolderBase]: For 56532/56671 co-relation queries the response was YES. [2023-11-06 23:09:54,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35629 conditions, 5865 events. 2556/5865 cut-off events. For 56532/56671 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 42118 event pairs, 394 based on Foata normal form. 6/5750 useless extension candidates. Maximal degree in co-relation 35526. Up to 1998 conditions per place. [2023-11-06 23:09:54,261 INFO L140 encePairwiseOnDemand]: 340/359 looper letters, 524 selfloop transitions, 258 changer transitions 0/871 dead transitions. [2023-11-06 23:09:54,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 871 transitions, 13923 flow [2023-11-06 23:09:54,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 23:09:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-06 23:09:54,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2727 transitions. [2023-11-06 23:09:54,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3798050139275766 [2023-11-06 23:09:54,279 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2727 transitions. [2023-11-06 23:09:54,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2727 transitions. [2023-11-06 23:09:54,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:54,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2727 transitions. [2023-11-06 23:09:54,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.35) internal successors, (2727), 20 states have internal predecessors, (2727), 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 23:09:54,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 359.0) internal successors, (7539), 21 states have internal predecessors, (7539), 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 23:09:54,299 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 359.0) internal successors, (7539), 21 states have internal predecessors, (7539), 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 23:09:54,300 INFO L175 Difference]: Start difference. First operand has 311 places, 725 transitions, 10722 flow. Second operand 20 states and 2727 transitions. [2023-11-06 23:09:54,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 871 transitions, 13923 flow [2023-11-06 23:09:54,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 871 transitions, 13552 flow, removed 64 selfloop flow, removed 10 redundant places. [2023-11-06 23:09:54,860 INFO L231 Difference]: Finished difference. Result has 326 places, 748 transitions, 11569 flow [2023-11-06 23:09:54,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=10378, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11569, PETRI_PLACES=326, PETRI_TRANSITIONS=748} [2023-11-06 23:09:54,862 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 249 predicate places. [2023-11-06 23:09:54,862 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 748 transitions, 11569 flow [2023-11-06 23:09:54,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 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 23:09:54,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:54,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:54,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 23:09:54,863 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-06 23:09:54,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:54,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1776535509, now seen corresponding path program 9 times [2023-11-06 23:09:54,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:54,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974758788] [2023-11-06 23:09:54,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:54,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:55,715 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 23:09:55,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:55,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974758788] [2023-11-06 23:09:55,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974758788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:55,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:55,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:09:55,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552121125] [2023-11-06 23:09:55,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:55,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:55,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:55,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132