./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --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_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/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_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/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_5d60f96b-b31f-4270-9638-b89b199f74e4/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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:56:03,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:56:03,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:56:03,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:56:03,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:56:03,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:56:03,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:56:03,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:56:03,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:56:03,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:56:03,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:56:03,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:56:03,854 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:56:03,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:56:03,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:56:03,857 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:56:03,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:56:03,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:56:03,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:56:03,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:56:03,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:56:03,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:56:03,862 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:56:03,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:56:03,863 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:56:03,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:56:03,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:56:03,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:56:03,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:56:03,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:56:03,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:03,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:56:03,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:56:03,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:56:03,868 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:56:03,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:56:03,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:56:03,869 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:56:03,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:56:03,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:56:03,870 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:56:03,870 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_5d60f96b-b31f-4270-9638-b89b199f74e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b [2023-11-06 21:56:04,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:56:04,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:56:04,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:56:04,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:56:04,215 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:56:04,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-06 21:56:07,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:56:07,660 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:56:07,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-06 21:56:07,670 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/data/bee61b232/a7adbac51ae94757bcccbb2c268af9da/FLAG5a2e352cb [2023-11-06 21:56:07,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/data/bee61b232/a7adbac51ae94757bcccbb2c268af9da [2023-11-06 21:56:07,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:56:07,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:56:07,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:07,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:56:07,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:56:07,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:07" (1/1) ... [2023-11-06 21:56:07,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5389b55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:07, skipping insertion in model container [2023-11-06 21:56:07,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:07" (1/1) ... [2023-11-06 21:56:07,728 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:56:07,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:07,952 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:56:08,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:08,021 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:56:08,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08 WrapperNode [2023-11-06 21:56:08,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:08,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:08,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:56:08,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:56:08,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,113 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 469 [2023-11-06 21:56:08,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:08,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:56:08,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:56:08,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:56:08,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:56:08,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:56:08,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:56:08,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:56:08,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (1/1) ... [2023-11-06 21:56:08,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:08,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:56:08,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:56:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:56:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:56:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:56:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:56:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:56:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:56:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:56:08,271 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 21:56:08,411 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:56:08,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:56:09,403 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:56:09,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:56:09,424 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 21:56:09,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:09 BoogieIcfgContainer [2023-11-06 21:56:09,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:56:09,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:56:09,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:56:09,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:56:09,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:07" (1/3) ... [2023-11-06 21:56:09,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a9d8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:09, skipping insertion in model container [2023-11-06 21:56:09,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:08" (2/3) ... [2023-11-06 21:56:09,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a9d8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:09, skipping insertion in model container [2023-11-06 21:56:09,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:09" (3/3) ... [2023-11-06 21:56:09,444 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-11-06 21:56:09,457 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:56:09,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:56:09,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-11-06 21:56:09,471 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:56:09,703 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:56:09,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 604 transitions, 1229 flow [2023-11-06 21:56:10,151 INFO L124 PetriNetUnfolderBase]: 33/601 cut-off events. [2023-11-06 21:56:10,152 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:56:10,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 601 events. 33/601 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1319 event pairs, 0 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 431. Up to 2 conditions per place. [2023-11-06 21:56:10,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 581 places, 604 transitions, 1229 flow [2023-11-06 21:56:10,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 553 places, 574 transitions, 1166 flow [2023-11-06 21:56:10,187 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:56:10,199 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 553 places, 574 transitions, 1166 flow [2023-11-06 21:56:10,202 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 553 places, 574 transitions, 1166 flow [2023-11-06 21:56:10,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 553 places, 574 transitions, 1166 flow [2023-11-06 21:56:10,387 INFO L124 PetriNetUnfolderBase]: 31/574 cut-off events. [2023-11-06 21:56:10,388 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:56:10,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 574 events. 31/574 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1307 event pairs, 0 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 431. Up to 2 conditions per place. [2023-11-06 21:56:10,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 78486 [2023-11-06 21:56:26,245 INFO L134 LiptonReduction]: Checked pairs total: 218792 [2023-11-06 21:56:26,246 INFO L136 LiptonReduction]: Total number of compositions: 579 [2023-11-06 21:56:26,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:56:26,270 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;@39346768, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:56:26,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-11-06 21:56:26,273 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:56:26,273 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 21:56:26,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:26,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:26,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 21:56:26,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:26,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash 72666, now seen corresponding path program 1 times [2023-11-06 21:56:26,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:26,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126473846] [2023-11-06 21:56:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:26,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:26,501 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 21:56:26,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:26,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126473846] [2023-11-06 21:56:26,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126473846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:26,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:26,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:56:26,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149544552] [2023-11-06 21:56:26,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:26,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:56:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:56:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:56:26,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1183 [2023-11-06 21:56:26,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 149 transitions, 316 flow. Second operand has 2 states, 2 states have (on average 576.0) internal successors, (1152), 2 states have internal predecessors, (1152), 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 21:56:26,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:26,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1183 [2023-11-06 21:56:26,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:28,054 INFO L124 PetriNetUnfolderBase]: 3462/9213 cut-off events. [2023-11-06 21:56:28,054 INFO L125 PetriNetUnfolderBase]: For 369/488 co-relation queries the response was YES. [2023-11-06 21:56:28,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14371 conditions, 9213 events. 3462/9213 cut-off events. For 369/488 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 88770 event pairs, 2973 based on Foata normal form. 628/8096 useless extension candidates. Maximal degree in co-relation 12752. Up to 4926 conditions per place. [2023-11-06 21:56:28,168 INFO L140 encePairwiseOnDemand]: 1151/1183 looper letters, 42 selfloop transitions, 0 changer transitions 1/117 dead transitions. [2023-11-06 21:56:28,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 117 transitions, 338 flow [2023-11-06 21:56:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:56:28,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:56:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1225 transitions. [2023-11-06 21:56:28,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5177514792899408 [2023-11-06 21:56:28,200 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1225 transitions. [2023-11-06 21:56:28,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1225 transitions. [2023-11-06 21:56:28,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:28,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1225 transitions. [2023-11-06 21:56:28,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 612.5) internal successors, (1225), 2 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:28,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1183.0) internal successors, (3549), 3 states have internal predecessors, (3549), 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 21:56:28,236 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1183.0) internal successors, (3549), 3 states have internal predecessors, (3549), 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 21:56:28,238 INFO L175 Difference]: Start difference. First operand has 148 places, 149 transitions, 316 flow. Second operand 2 states and 1225 transitions. [2023-11-06 21:56:28,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 117 transitions, 338 flow [2023-11-06 21:56:28,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 326 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 21:56:28,253 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 237 flow [2023-11-06 21:56:28,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=237, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2023-11-06 21:56:28,262 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -32 predicate places. [2023-11-06 21:56:28,262 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 237 flow [2023-11-06 21:56:28,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 576.0) internal successors, (1152), 2 states have internal predecessors, (1152), 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 21:56:28,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:28,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:28,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:56:28,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:28,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:28,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1509694884, now seen corresponding path program 1 times [2023-11-06 21:56:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318383152] [2023-11-06 21:56:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:28,501 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 21:56:28,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:28,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318383152] [2023-11-06 21:56:28,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318383152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:28,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:28,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:56:28,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607753359] [2023-11-06 21:56:28,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:28,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:28,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:28,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:28,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 557 out of 1183 [2023-11-06 21:56:28,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 558.6666666666666) internal successors, (1676), 3 states have internal predecessors, (1676), 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 21:56:28,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:28,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 557 of 1183 [2023-11-06 21:56:28,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:30,045 INFO L124 PetriNetUnfolderBase]: 3462/9215 cut-off events. [2023-11-06 21:56:30,045 INFO L125 PetriNetUnfolderBase]: For 81/200 co-relation queries the response was YES. [2023-11-06 21:56:30,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14218 conditions, 9215 events. 3462/9215 cut-off events. For 81/200 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 88728 event pairs, 2973 based on Foata normal form. 0/7470 useless extension candidates. Maximal degree in co-relation 14215. Up to 4925 conditions per place. [2023-11-06 21:56:30,226 INFO L140 encePairwiseOnDemand]: 1176/1183 looper letters, 39 selfloop transitions, 6 changer transitions 0/119 dead transitions. [2023-11-06 21:56:30,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 119 transitions, 333 flow [2023-11-06 21:56:30,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:30,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1719 transitions. [2023-11-06 21:56:30,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48436179205409974 [2023-11-06 21:56:30,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1719 transitions. [2023-11-06 21:56:30,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1719 transitions. [2023-11-06 21:56:30,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:30,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1719 transitions. [2023-11-06 21:56:30,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 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 21:56:30,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:30,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:30,259 INFO L175 Difference]: Start difference. First operand has 116 places, 116 transitions, 237 flow. Second operand 3 states and 1719 transitions. [2023-11-06 21:56:30,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 119 transitions, 333 flow [2023-11-06 21:56:30,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 119 transitions, 333 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:30,265 INFO L231 Difference]: Finished difference. Result has 118 places, 119 transitions, 269 flow [2023-11-06 21:56:30,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=118, PETRI_TRANSITIONS=119} [2023-11-06 21:56:30,268 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -30 predicate places. [2023-11-06 21:56:30,268 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 119 transitions, 269 flow [2023-11-06 21:56:30,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 558.6666666666666) internal successors, (1676), 3 states have internal predecessors, (1676), 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 21:56:30,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:30,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:30,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:56:30,277 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:30,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:30,280 INFO L85 PathProgramCache]: Analyzing trace with hash -232396254, now seen corresponding path program 1 times [2023-11-06 21:56:30,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:30,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715216699] [2023-11-06 21:56:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:30,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:56:30,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:30,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715216699] [2023-11-06 21:56:30,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715216699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:30,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:30,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:30,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410594686] [2023-11-06 21:56:30,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:30,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:30,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:30,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:30,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 1183 [2023-11-06 21:56:30,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 119 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 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 21:56:30,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:30,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 1183 [2023-11-06 21:56:30,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:31,820 INFO L124 PetriNetUnfolderBase]: 4250/9388 cut-off events. [2023-11-06 21:56:31,820 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2023-11-06 21:56:31,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15527 conditions, 9388 events. 4250/9388 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 81054 event pairs, 1191 based on Foata normal form. 0/7646 useless extension candidates. Maximal degree in co-relation 15522. Up to 5970 conditions per place. [2023-11-06 21:56:31,985 INFO L140 encePairwiseOnDemand]: 1179/1183 looper letters, 60 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2023-11-06 21:56:31,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 132 transitions, 421 flow [2023-11-06 21:56:31,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:31,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1765 transitions. [2023-11-06 21:56:31,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49732318963088196 [2023-11-06 21:56:31,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1765 transitions. [2023-11-06 21:56:31,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1765 transitions. [2023-11-06 21:56:31,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:31,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1765 transitions. [2023-11-06 21:56:32,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 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 21:56:32,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:32,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:32,015 INFO L175 Difference]: Start difference. First operand has 118 places, 119 transitions, 269 flow. Second operand 3 states and 1765 transitions. [2023-11-06 21:56:32,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 132 transitions, 421 flow [2023-11-06 21:56:32,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 132 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:56:32,022 INFO L231 Difference]: Finished difference. Result has 118 places, 119 transitions, 273 flow [2023-11-06 21:56:32,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=118, PETRI_TRANSITIONS=119} [2023-11-06 21:56:32,024 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -30 predicate places. [2023-11-06 21:56:32,025 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 119 transitions, 273 flow [2023-11-06 21:56:32,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 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 21:56:32,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:32,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:32,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:56:32,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:32,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:32,032 INFO L85 PathProgramCache]: Analyzing trace with hash 26785785, now seen corresponding path program 1 times [2023-11-06 21:56:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911982308] [2023-11-06 21:56:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:32,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:56:32,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911982308] [2023-11-06 21:56:32,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911982308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:32,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:32,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:32,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925916797] [2023-11-06 21:56:32,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:32,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:32,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:32,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:32,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:32,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 1183 [2023-11-06 21:56:32,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 119 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 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 21:56:32,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:32,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 1183 [2023-11-06 21:56:32,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:33,427 INFO L124 PetriNetUnfolderBase]: 4125/10044 cut-off events. [2023-11-06 21:56:33,427 INFO L125 PetriNetUnfolderBase]: For 90/115 co-relation queries the response was YES. [2023-11-06 21:56:33,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16059 conditions, 10044 events. 4125/10044 cut-off events. For 90/115 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 92566 event pairs, 2170 based on Foata normal form. 1/8207 useless extension candidates. Maximal degree in co-relation 16054. Up to 5737 conditions per place. [2023-11-06 21:56:33,522 INFO L140 encePairwiseOnDemand]: 1179/1183 looper letters, 62 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2023-11-06 21:56:33,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 135 transitions, 435 flow [2023-11-06 21:56:33,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1767 transitions. [2023-11-06 21:56:33,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4978867286559594 [2023-11-06 21:56:33,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1767 transitions. [2023-11-06 21:56:33,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1767 transitions. [2023-11-06 21:56:33,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:33,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1767 transitions. [2023-11-06 21:56:33,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 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 21:56:33,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:33,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:33,552 INFO L175 Difference]: Start difference. First operand has 118 places, 119 transitions, 273 flow. Second operand 3 states and 1767 transitions. [2023-11-06 21:56:33,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 135 transitions, 435 flow [2023-11-06 21:56:33,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 135 transitions, 435 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:33,557 INFO L231 Difference]: Finished difference. Result has 119 places, 119 transitions, 283 flow [2023-11-06 21:56:33,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=119, PETRI_TRANSITIONS=119} [2023-11-06 21:56:33,558 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -29 predicate places. [2023-11-06 21:56:33,558 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 119 transitions, 283 flow [2023-11-06 21:56:33,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 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 21:56:33,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:33,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:33,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:56:33,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:33,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1758298464, now seen corresponding path program 1 times [2023-11-06 21:56:33,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:33,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385098560] [2023-11-06 21:56:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:33,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:56:33,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:33,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385098560] [2023-11-06 21:56:33,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385098560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:33,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:33,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:33,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421441843] [2023-11-06 21:56:33,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:33,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:33,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:33,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:33,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 1183 [2023-11-06 21:56:33,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 119 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 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 21:56:33,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:33,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 1183 [2023-11-06 21:56:33,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:35,651 INFO L124 PetriNetUnfolderBase]: 5667/13831 cut-off events. [2023-11-06 21:56:35,651 INFO L125 PetriNetUnfolderBase]: For 330/345 co-relation queries the response was YES. [2023-11-06 21:56:35,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22265 conditions, 13831 events. 5667/13831 cut-off events. For 330/345 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 135588 event pairs, 1479 based on Foata normal form. 2/11224 useless extension candidates. Maximal degree in co-relation 22259. Up to 5642 conditions per place. [2023-11-06 21:56:35,779 INFO L140 encePairwiseOnDemand]: 1179/1183 looper letters, 74 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-11-06 21:56:35,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 146 transitions, 498 flow [2023-11-06 21:56:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1777 transitions. [2023-11-06 21:56:35,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5007044237813468 [2023-11-06 21:56:35,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1777 transitions. [2023-11-06 21:56:35,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1777 transitions. [2023-11-06 21:56:35,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:35,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1777 transitions. [2023-11-06 21:56:35,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 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 21:56:35,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:35,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:35,807 INFO L175 Difference]: Start difference. First operand has 119 places, 119 transitions, 283 flow. Second operand 3 states and 1777 transitions. [2023-11-06 21:56:35,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 146 transitions, 498 flow [2023-11-06 21:56:35,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 146 transitions, 498 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:35,812 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 293 flow [2023-11-06 21:56:35,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2023-11-06 21:56:35,814 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -28 predicate places. [2023-11-06 21:56:35,814 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 293 flow [2023-11-06 21:56:35,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 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 21:56:35,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:35,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:35,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:56:35,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:35,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:35,817 INFO L85 PathProgramCache]: Analyzing trace with hash -28038122, now seen corresponding path program 1 times [2023-11-06 21:56:35,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:35,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482297545] [2023-11-06 21:56:35,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:35,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:56:35,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:35,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482297545] [2023-11-06 21:56:35,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482297545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:35,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:35,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015931389] [2023-11-06 21:56:35,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:35,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:35,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:35,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:35,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 1183 [2023-11-06 21:56:35,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 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 21:56:35,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:35,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 1183 [2023-11-06 21:56:35,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:37,299 INFO L124 PetriNetUnfolderBase]: 5207/11655 cut-off events. [2023-11-06 21:56:37,299 INFO L125 PetriNetUnfolderBase]: For 591/691 co-relation queries the response was YES. [2023-11-06 21:56:37,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20288 conditions, 11655 events. 5207/11655 cut-off events. For 591/691 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 103559 event pairs, 1095 based on Foata normal form. 5/9837 useless extension candidates. Maximal degree in co-relation 20281. Up to 6622 conditions per place. [2023-11-06 21:56:37,437 INFO L140 encePairwiseOnDemand]: 1179/1183 looper letters, 66 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2023-11-06 21:56:37,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 137 transitions, 477 flow [2023-11-06 21:56:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:37,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1766 transitions. [2023-11-06 21:56:37,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4976049591434207 [2023-11-06 21:56:37,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1766 transitions. [2023-11-06 21:56:37,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1766 transitions. [2023-11-06 21:56:37,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:37,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1766 transitions. [2023-11-06 21:56:37,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.6666666666666) internal successors, (1766), 3 states have internal predecessors, (1766), 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 21:56:37,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:37,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:37,485 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 293 flow. Second operand 3 states and 1766 transitions. [2023-11-06 21:56:37,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 137 transitions, 477 flow [2023-11-06 21:56:37,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 137 transitions, 477 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:37,491 INFO L231 Difference]: Finished difference. Result has 121 places, 119 transitions, 303 flow [2023-11-06 21:56:37,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=121, PETRI_TRANSITIONS=119} [2023-11-06 21:56:37,499 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -27 predicate places. [2023-11-06 21:56:37,499 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 119 transitions, 303 flow [2023-11-06 21:56:37,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 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 21:56:37,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:37,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:37,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:56:37,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:37,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1174124891, now seen corresponding path program 1 times [2023-11-06 21:56:37,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:37,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773684987] [2023-11-06 21:56:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:37,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:56:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:37,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773684987] [2023-11-06 21:56:37,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773684987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:37,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:37,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:37,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352991857] [2023-11-06 21:56:37,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:37,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:37,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:37,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:37,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:37,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 1183 [2023-11-06 21:56:37,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 119 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 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 21:56:37,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:37,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 1183 [2023-11-06 21:56:37,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:40,145 INFO L124 PetriNetUnfolderBase]: 8503/20596 cut-off events. [2023-11-06 21:56:40,146 INFO L125 PetriNetUnfolderBase]: For 1578/1593 co-relation queries the response was YES. [2023-11-06 21:56:40,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35325 conditions, 20596 events. 8503/20596 cut-off events. For 1578/1593 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 208296 event pairs, 2421 based on Foata normal form. 0/17904 useless extension candidates. Maximal degree in co-relation 35317. Up to 7701 conditions per place. [2023-11-06 21:56:40,414 INFO L140 encePairwiseOnDemand]: 1179/1183 looper letters, 86 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2023-11-06 21:56:40,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 152 transitions, 571 flow [2023-11-06 21:56:40,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2023-11-06 21:56:40,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5021132713440406 [2023-11-06 21:56:40,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1782 transitions. [2023-11-06 21:56:40,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1782 transitions. [2023-11-06 21:56:40,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:40,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1782 transitions. [2023-11-06 21:56:40,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 594.0) internal successors, (1782), 3 states have internal predecessors, (1782), 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 21:56:40,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:40,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:56:40,447 INFO L175 Difference]: Start difference. First operand has 121 places, 119 transitions, 303 flow. Second operand 3 states and 1782 transitions. [2023-11-06 21:56:40,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 152 transitions, 571 flow [2023-11-06 21:56:40,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 152 transitions, 571 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:40,455 INFO L231 Difference]: Finished difference. Result has 122 places, 119 transitions, 313 flow [2023-11-06 21:56:40,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=122, PETRI_TRANSITIONS=119} [2023-11-06 21:56:40,456 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -26 predicate places. [2023-11-06 21:56:40,456 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 119 transitions, 313 flow [2023-11-06 21:56:40,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 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 21:56:40,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:40,457 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 21:56:40,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:56:40,458 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:40,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:40,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1134760439, now seen corresponding path program 1 times [2023-11-06 21:56:40,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:40,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343967077] [2023-11-06 21:56:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:40,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:56:40,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:40,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343967077] [2023-11-06 21:56:40,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343967077] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:40,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676082476] [2023-11-06 21:56:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:40,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:40,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:40,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:40,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:56:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:40,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:56:40,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:56:40,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:56:40,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676082476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:40,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:56:40,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-06 21:56:40,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965050348] [2023-11-06 21:56:40,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:40,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:56:40,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:40,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:56:40,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:56:41,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 1183 [2023-11-06 21:56:41,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 313 flow. Second operand has 8 states, 8 states have (on average 553.375) internal successors, (4427), 8 states have internal predecessors, (4427), 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 21:56:41,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:41,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 1183 [2023-11-06 21:56:41,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:43,678 INFO L124 PetriNetUnfolderBase]: 7017/16612 cut-off events. [2023-11-06 21:56:43,678 INFO L125 PetriNetUnfolderBase]: For 1566/2031 co-relation queries the response was YES. [2023-11-06 21:56:43,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29796 conditions, 16612 events. 7017/16612 cut-off events. For 1566/2031 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 158040 event pairs, 5125 based on Foata normal form. 0/14533 useless extension candidates. Maximal degree in co-relation 29787. Up to 9924 conditions per place. [2023-11-06 21:56:43,810 INFO L140 encePairwiseOnDemand]: 1176/1183 looper letters, 45 selfloop transitions, 15 changer transitions 0/128 dead transitions. [2023-11-06 21:56:43,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 128 transitions, 469 flow [2023-11-06 21:56:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:56:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3369 transitions. [2023-11-06 21:56:43,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4746407438715131 [2023-11-06 21:56:43,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3369 transitions. [2023-11-06 21:56:43,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3369 transitions. [2023-11-06 21:56:43,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:43,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3369 transitions. [2023-11-06 21:56:43,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 561.5) internal successors, (3369), 6 states have internal predecessors, (3369), 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 21:56:43,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:56:43,852 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:56:43,853 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 313 flow. Second operand 6 states and 3369 transitions. [2023-11-06 21:56:43,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 128 transitions, 469 flow [2023-11-06 21:56:43,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 128 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:43,859 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 409 flow [2023-11-06 21:56:43,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=409, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2023-11-06 21:56:43,864 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -18 predicate places. [2023-11-06 21:56:43,864 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 409 flow [2023-11-06 21:56:43,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 553.375) internal successors, (4427), 8 states have internal predecessors, (4427), 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 21:56:43,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:43,866 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:43,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:44,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:44,074 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:44,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash 811232967, now seen corresponding path program 2 times [2023-11-06 21:56:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:44,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841688257] [2023-11-06 21:56:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:44,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:56:44,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:44,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841688257] [2023-11-06 21:56:44,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841688257] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:44,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782999965] [2023-11-06 21:56:44,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:56:44,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:44,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:44,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:56:44,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:56:44,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:56:44,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 21:56:44,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:44,721 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 21:56:44,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 21:56:44,945 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:56:44,946 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 21:56:44,985 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:56:44,985 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-06 21:56:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 21:56:45,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:45,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782999965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:45,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:56:45,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-11-06 21:56:45,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67602478] [2023-11-06 21:56:45,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:45,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:56:45,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:56:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:56:45,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:56:45,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 409 flow. Second operand has 7 states, 7 states have (on average 555.4285714285714) internal successors, (3888), 7 states have internal predecessors, (3888), 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 21:56:45,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:45,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:56:45,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:50,103 INFO L124 PetriNetUnfolderBase]: 21105/33217 cut-off events. [2023-11-06 21:56:50,103 INFO L125 PetriNetUnfolderBase]: For 5391/5505 co-relation queries the response was YES. [2023-11-06 21:56:50,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70077 conditions, 33217 events. 21105/33217 cut-off events. For 5391/5505 co-relation queries the response was YES. Maximal size of possible extension queue 1194. Compared 249121 event pairs, 2259 based on Foata normal form. 0/29395 useless extension candidates. Maximal degree in co-relation 70064. Up to 10570 conditions per place. [2023-11-06 21:56:50,369 INFO L140 encePairwiseOnDemand]: 1177/1183 looper letters, 183 selfloop transitions, 5 changer transitions 0/251 dead transitions. [2023-11-06 21:56:50,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 251 transitions, 1151 flow [2023-11-06 21:56:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:56:50,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:56:50,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4018 transitions. [2023-11-06 21:56:50,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48520710059171596 [2023-11-06 21:56:50,386 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4018 transitions. [2023-11-06 21:56:50,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4018 transitions. [2023-11-06 21:56:50,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:50,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4018 transitions. [2023-11-06 21:56:50,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 574.0) internal successors, (4018), 7 states have internal predecessors, (4018), 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 21:56:50,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1183.0) internal successors, (9464), 8 states have internal predecessors, (9464), 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 21:56:50,423 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1183.0) internal successors, (9464), 8 states have internal predecessors, (9464), 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 21:56:50,423 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 409 flow. Second operand 7 states and 4018 transitions. [2023-11-06 21:56:50,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 251 transitions, 1151 flow [2023-11-06 21:56:50,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 251 transitions, 1127 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-06 21:56:50,431 INFO L231 Difference]: Finished difference. Result has 134 places, 127 transitions, 393 flow [2023-11-06 21:56:50,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=393, PETRI_PLACES=134, PETRI_TRANSITIONS=127} [2023-11-06 21:56:50,433 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -14 predicate places. [2023-11-06 21:56:50,433 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 127 transitions, 393 flow [2023-11-06 21:56:50,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 555.4285714285714) internal successors, (3888), 7 states have internal predecessors, (3888), 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 21:56:50,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:50,434 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:50,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:50,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:50,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:50,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:50,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1458295019, now seen corresponding path program 1 times [2023-11-06 21:56:50,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:50,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739963322] [2023-11-06 21:56:50,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:50,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:56:50,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:50,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739963322] [2023-11-06 21:56:50,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739963322] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:50,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856409596] [2023-11-06 21:56:50,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:50,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:50,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:50,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:50,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:56:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:51,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:56:51,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:56:51,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:56:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856409596] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:51,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:56:51,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-11-06 21:56:51,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717449170] [2023-11-06 21:56:51,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:51,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-06 21:56:51,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:51,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-06 21:56:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-11-06 21:56:52,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 1183 [2023-11-06 21:56:52,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 127 transitions, 393 flow. Second operand has 17 states, 17 states have (on average 552.7058823529412) internal successors, (9396), 17 states have internal predecessors, (9396), 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 21:56:52,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:52,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 1183 [2023-11-06 21:56:52,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:54,701 INFO L124 PetriNetUnfolderBase]: 7017/16547 cut-off events. [2023-11-06 21:56:54,701 INFO L125 PetriNetUnfolderBase]: For 2703/3168 co-relation queries the response was YES. [2023-11-06 21:56:54,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31114 conditions, 16547 events. 7017/16547 cut-off events. For 2703/3168 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 156953 event pairs, 5125 based on Foata normal form. 1/14538 useless extension candidates. Maximal degree in co-relation 31100. Up to 9924 conditions per place. [2023-11-06 21:56:54,829 INFO L140 encePairwiseOnDemand]: 1176/1183 looper letters, 45 selfloop transitions, 18 changer transitions 0/130 dead transitions. [2023-11-06 21:56:54,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 130 transitions, 537 flow [2023-11-06 21:56:54,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:56:54,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:56:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3917 transitions. [2023-11-06 21:56:54,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47301050597753896 [2023-11-06 21:56:54,844 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3917 transitions. [2023-11-06 21:56:54,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3917 transitions. [2023-11-06 21:56:54,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:54,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3917 transitions. [2023-11-06 21:56:54,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 559.5714285714286) internal successors, (3917), 7 states have internal predecessors, (3917), 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 21:56:54,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1183.0) internal successors, (9464), 8 states have internal predecessors, (9464), 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 21:56:54,873 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1183.0) internal successors, (9464), 8 states have internal predecessors, (9464), 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 21:56:54,873 INFO L175 Difference]: Start difference. First operand has 134 places, 127 transitions, 393 flow. Second operand 7 states and 3917 transitions. [2023-11-06 21:56:54,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 130 transitions, 537 flow [2023-11-06 21:56:54,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 130 transitions, 528 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:56:54,890 INFO L231 Difference]: Finished difference. Result has 136 places, 130 transitions, 452 flow [2023-11-06 21:56:54,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=452, PETRI_PLACES=136, PETRI_TRANSITIONS=130} [2023-11-06 21:56:54,892 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -12 predicate places. [2023-11-06 21:56:54,892 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 130 transitions, 452 flow [2023-11-06 21:56:54,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 552.7058823529412) internal successors, (9396), 17 states have internal predecessors, (9396), 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 21:56:54,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:54,894 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:54,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-06 21:56:55,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d60f96b-b31f-4270-9638-b89b199f74e4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 21:56:55,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:56:55,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1681372137, now seen corresponding path program 2 times [2023-11-06 21:56:55,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:55,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301983098] [2023-11-06 21:56:55,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:55,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:56:56,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:56,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301983098] [2023-11-06 21:56:56,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301983098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:56,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:56,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:56:56,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004453995] [2023-11-06 21:56:56,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:56,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:56:56,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:56:56,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 130 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 555.8333333333334) internal successors, (3335), 6 states have internal predecessors, (3335), 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 21:56:56,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:56,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:56:56,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:59,877 INFO L124 PetriNetUnfolderBase]: 11037/21654 cut-off events. [2023-11-06 21:56:59,877 INFO L125 PetriNetUnfolderBase]: For 2393/2418 co-relation queries the response was YES. [2023-11-06 21:56:59,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41756 conditions, 21654 events. 11037/21654 cut-off events. For 2393/2418 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 188707 event pairs, 4737 based on Foata normal form. 0/19473 useless extension candidates. Maximal degree in co-relation 41741. Up to 9038 conditions per place. [2023-11-06 21:57:00,051 INFO L140 encePairwiseOnDemand]: 1177/1183 looper letters, 163 selfloop transitions, 5 changer transitions 0/229 dead transitions. [2023-11-06 21:57:00,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 229 transitions, 1062 flow [2023-11-06 21:57:00,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:57:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3454 transitions. [2023-11-06 21:57:00,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48661594815440967 [2023-11-06 21:57:00,065 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3454 transitions. [2023-11-06 21:57:00,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3454 transitions. [2023-11-06 21:57:00,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:00,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3454 transitions. [2023-11-06 21:57:00,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 575.6666666666666) internal successors, (3454), 6 states have internal predecessors, (3454), 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 21:57:00,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:00,090 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:00,090 INFO L175 Difference]: Start difference. First operand has 136 places, 130 transitions, 452 flow. Second operand 6 states and 3454 transitions. [2023-11-06 21:57:00,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 229 transitions, 1062 flow [2023-11-06 21:57:00,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 229 transitions, 1026 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-11-06 21:57:00,098 INFO L231 Difference]: Finished difference. Result has 136 places, 129 transitions, 424 flow [2023-11-06 21:57:00,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=424, PETRI_PLACES=136, PETRI_TRANSITIONS=129} [2023-11-06 21:57:00,099 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -12 predicate places. [2023-11-06 21:57:00,099 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 129 transitions, 424 flow [2023-11-06 21:57:00,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 555.8333333333334) internal successors, (3335), 6 states have internal predecessors, (3335), 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 21:57:00,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:00,101 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:00,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:57:00,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:57:00,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1106685938, now seen corresponding path program 1 times [2023-11-06 21:57:00,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:00,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823695954] [2023-11-06 21:57:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:00,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:57:00,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:00,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823695954] [2023-11-06 21:57:00,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823695954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:00,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:00,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:57:00,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316198018] [2023-11-06 21:57:00,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:00,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:57:00,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:00,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:57:00,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:57:01,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:57:01,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 129 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 556.1666666666666) internal successors, (3337), 6 states have internal predecessors, (3337), 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 21:57:01,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:01,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:57:01,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:04,646 INFO L124 PetriNetUnfolderBase]: 10082/22403 cut-off events. [2023-11-06 21:57:04,647 INFO L125 PetriNetUnfolderBase]: For 2611/3066 co-relation queries the response was YES. [2023-11-06 21:57:04,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41782 conditions, 22403 events. 10082/22403 cut-off events. For 2611/3066 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 213851 event pairs, 4610 based on Foata normal form. 0/20319 useless extension candidates. Maximal degree in co-relation 41766. Up to 9064 conditions per place. [2023-11-06 21:57:04,843 INFO L140 encePairwiseOnDemand]: 1177/1183 looper letters, 159 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2023-11-06 21:57:04,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 224 transitions, 1014 flow [2023-11-06 21:57:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:57:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3454 transitions. [2023-11-06 21:57:04,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48661594815440967 [2023-11-06 21:57:04,855 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3454 transitions. [2023-11-06 21:57:04,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3454 transitions. [2023-11-06 21:57:04,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:04,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3454 transitions. [2023-11-06 21:57:04,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 575.6666666666666) internal successors, (3454), 6 states have internal predecessors, (3454), 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 21:57:04,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:04,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:04,878 INFO L175 Difference]: Start difference. First operand has 136 places, 129 transitions, 424 flow. Second operand 6 states and 3454 transitions. [2023-11-06 21:57:04,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 224 transitions, 1014 flow [2023-11-06 21:57:04,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 224 transitions, 996 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:57:04,888 INFO L231 Difference]: Finished difference. Result has 135 places, 128 transitions, 422 flow [2023-11-06 21:57:04,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=422, PETRI_PLACES=135, PETRI_TRANSITIONS=128} [2023-11-06 21:57:04,889 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -13 predicate places. [2023-11-06 21:57:04,889 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 128 transitions, 422 flow [2023-11-06 21:57:04,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 556.1666666666666) internal successors, (3337), 6 states have internal predecessors, (3337), 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 21:57:04,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:04,890 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:04,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 21:57:04,891 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:57:04,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 620045273, now seen corresponding path program 1 times [2023-11-06 21:57:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:04,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240762978] [2023-11-06 21:57:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:04,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:57:05,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:05,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240762978] [2023-11-06 21:57:05,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240762978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:05,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:05,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:57:05,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161020363] [2023-11-06 21:57:05,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:05,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:57:05,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:05,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:57:05,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:57:06,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:57:06,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 128 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 556.6666666666666) internal successors, (3340), 6 states have internal predecessors, (3340), 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 21:57:06,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:06,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:57:06,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:09,299 INFO L124 PetriNetUnfolderBase]: 10207/20002 cut-off events. [2023-11-06 21:57:09,299 INFO L125 PetriNetUnfolderBase]: For 2695/3187 co-relation queries the response was YES. [2023-11-06 21:57:09,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39063 conditions, 20002 events. 10207/20002 cut-off events. For 2695/3187 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 171587 event pairs, 4205 based on Foata normal form. 1/17978 useless extension candidates. Maximal degree in co-relation 39047. Up to 8183 conditions per place. [2023-11-06 21:57:09,485 INFO L140 encePairwiseOnDemand]: 1177/1183 looper letters, 155 selfloop transitions, 5 changer transitions 0/219 dead transitions. [2023-11-06 21:57:09,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 219 transitions, 996 flow [2023-11-06 21:57:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:57:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3450 transitions. [2023-11-06 21:57:09,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48605240912933223 [2023-11-06 21:57:09,497 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3450 transitions. [2023-11-06 21:57:09,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3450 transitions. [2023-11-06 21:57:09,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:09,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3450 transitions. [2023-11-06 21:57:09,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 575.0) internal successors, (3450), 6 states have internal predecessors, (3450), 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 21:57:09,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:09,517 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:09,517 INFO L175 Difference]: Start difference. First operand has 135 places, 128 transitions, 422 flow. Second operand 6 states and 3450 transitions. [2023-11-06 21:57:09,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 219 transitions, 996 flow [2023-11-06 21:57:09,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 219 transitions, 978 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:57:09,526 INFO L231 Difference]: Finished difference. Result has 134 places, 127 transitions, 420 flow [2023-11-06 21:57:09,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=134, PETRI_TRANSITIONS=127} [2023-11-06 21:57:09,527 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -14 predicate places. [2023-11-06 21:57:09,527 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 127 transitions, 420 flow [2023-11-06 21:57:09,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 556.6666666666666) internal successors, (3340), 6 states have internal predecessors, (3340), 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 21:57:09,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:09,528 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:09,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 21:57:09,529 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:57:09,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:09,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1626751985, now seen corresponding path program 1 times [2023-11-06 21:57:09,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:09,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903633492] [2023-11-06 21:57:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:09,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:09,677 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:57:09,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:09,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903633492] [2023-11-06 21:57:09,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903633492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:09,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:09,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:57:09,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031609471] [2023-11-06 21:57:09,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:09,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:09,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:09,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:09,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:09,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 1183 [2023-11-06 21:57:09,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 127 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 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 21:57:09,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:09,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 1183 [2023-11-06 21:57:09,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:12,987 INFO L124 PetriNetUnfolderBase]: 11827/24983 cut-off events. [2023-11-06 21:57:12,988 INFO L125 PetriNetUnfolderBase]: For 2623/3078 co-relation queries the response was YES. [2023-11-06 21:57:13,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48020 conditions, 24983 events. 11827/24983 cut-off events. For 2623/3078 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 235375 event pairs, 3254 based on Foata normal form. 0/23156 useless extension candidates. Maximal degree in co-relation 48004. Up to 11367 conditions per place. [2023-11-06 21:57:13,222 INFO L140 encePairwiseOnDemand]: 1179/1183 looper letters, 98 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2023-11-06 21:57:13,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 158 transitions, 709 flow [2023-11-06 21:57:13,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:13,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1781 transitions. [2023-11-06 21:57:13,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018315018315018 [2023-11-06 21:57:13,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1781 transitions. [2023-11-06 21:57:13,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1781 transitions. [2023-11-06 21:57:13,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:13,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1781 transitions. [2023-11-06 21:57:13,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 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 21:57:13,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:57:13,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1183.0) internal successors, (4732), 4 states have internal predecessors, (4732), 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 21:57:13,235 INFO L175 Difference]: Start difference. First operand has 134 places, 127 transitions, 420 flow. Second operand 3 states and 1781 transitions. [2023-11-06 21:57:13,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 158 transitions, 709 flow [2023-11-06 21:57:13,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 158 transitions, 699 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:57:13,257 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 420 flow [2023-11-06 21:57:13,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2023-11-06 21:57:13,258 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -18 predicate places. [2023-11-06 21:57:13,259 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 420 flow [2023-11-06 21:57:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 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 21:57:13,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:13,259 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:13,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 21:57:13,260 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:57:13,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1731084706, now seen corresponding path program 1 times [2023-11-06 21:57:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384796297] [2023-11-06 21:57:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:57:14,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:14,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384796297] [2023-11-06 21:57:14,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384796297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:14,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:14,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:57:14,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460882589] [2023-11-06 21:57:14,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:14,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:57:14,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:14,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:57:14,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:57:15,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:57:15,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 556.8333333333334) internal successors, (3341), 6 states have internal predecessors, (3341), 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 21:57:15,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:15,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:57:15,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:18,348 INFO L124 PetriNetUnfolderBase]: 11277/23775 cut-off events. [2023-11-06 21:57:18,348 INFO L125 PetriNetUnfolderBase]: For 2509/2964 co-relation queries the response was YES. [2023-11-06 21:57:18,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45146 conditions, 23775 events. 11277/23775 cut-off events. For 2509/2964 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 220946 event pairs, 6350 based on Foata normal form. 0/22006 useless extension candidates. Maximal degree in co-relation 45130. Up to 12093 conditions per place. [2023-11-06 21:57:18,586 INFO L140 encePairwiseOnDemand]: 1178/1183 looper letters, 147 selfloop transitions, 4 changer transitions 0/210 dead transitions. [2023-11-06 21:57:18,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 210 transitions, 968 flow [2023-11-06 21:57:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:57:18,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3433 transitions. [2023-11-06 21:57:18,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4836573682727529 [2023-11-06 21:57:18,594 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3433 transitions. [2023-11-06 21:57:18,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3433 transitions. [2023-11-06 21:57:18,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:18,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3433 transitions. [2023-11-06 21:57:18,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 572.1666666666666) internal successors, (3433), 6 states have internal predecessors, (3433), 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 21:57:18,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:18,605 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:18,605 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 420 flow. Second operand 6 states and 3433 transitions. [2023-11-06 21:57:18,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 210 transitions, 968 flow [2023-11-06 21:57:18,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 210 transitions, 968 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:57:18,609 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 426 flow [2023-11-06 21:57:18,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2023-11-06 21:57:18,610 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -14 predicate places. [2023-11-06 21:57:18,610 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 426 flow [2023-11-06 21:57:18,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 556.8333333333334) internal successors, (3341), 6 states have internal predecessors, (3341), 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 21:57:18,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:18,611 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:18,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 21:57:18,611 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:57:18,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:18,612 INFO L85 PathProgramCache]: Analyzing trace with hash 251890832, now seen corresponding path program 1 times [2023-11-06 21:57:18,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:18,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898321972] [2023-11-06 21:57:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:57:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:19,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898321972] [2023-11-06 21:57:19,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898321972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:19,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:19,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:57:19,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565859026] [2023-11-06 21:57:19,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:19,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:57:19,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:19,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:57:19,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:57:20,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:57:20,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 555.8333333333334) internal successors, (3335), 6 states have internal predecessors, (3335), 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 21:57:20,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:20,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:57:20,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:23,880 INFO L124 PetriNetUnfolderBase]: 12011/24779 cut-off events. [2023-11-06 21:57:23,880 INFO L125 PetriNetUnfolderBase]: For 2885/3029 co-relation queries the response was YES. [2023-11-06 21:57:24,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47759 conditions, 24779 events. 12011/24779 cut-off events. For 2885/3029 co-relation queries the response was YES. Maximal size of possible extension queue 781. Compared 227552 event pairs, 6242 based on Foata normal form. 0/23055 useless extension candidates. Maximal degree in co-relation 47742. Up to 11747 conditions per place. [2023-11-06 21:57:24,088 INFO L140 encePairwiseOnDemand]: 1177/1183 looper letters, 158 selfloop transitions, 5 changer transitions 0/221 dead transitions. [2023-11-06 21:57:24,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 221 transitions, 1006 flow [2023-11-06 21:57:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:57:24,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3453 transitions. [2023-11-06 21:57:24,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48647506339814034 [2023-11-06 21:57:24,096 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3453 transitions. [2023-11-06 21:57:24,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3453 transitions. [2023-11-06 21:57:24,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:24,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3453 transitions. [2023-11-06 21:57:24,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 575.5) internal successors, (3453), 6 states have internal predecessors, (3453), 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 21:57:24,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:24,110 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1183.0) internal successors, (8281), 7 states have internal predecessors, (8281), 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 21:57:24,110 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 426 flow. Second operand 6 states and 3453 transitions. [2023-11-06 21:57:24,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 221 transitions, 1006 flow [2023-11-06 21:57:24,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 221 transitions, 999 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:57:24,122 INFO L231 Difference]: Finished difference. Result has 134 places, 125 transitions, 427 flow [2023-11-06 21:57:24,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1183, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=134, PETRI_TRANSITIONS=125} [2023-11-06 21:57:24,123 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -14 predicate places. [2023-11-06 21:57:24,123 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 125 transitions, 427 flow [2023-11-06 21:57:24,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 555.8333333333334) internal successors, (3335), 6 states have internal predecessors, (3335), 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 21:57:24,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:24,125 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:24,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 21:57:24,125 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-06 21:57:24,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash -214493387, now seen corresponding path program 1 times [2023-11-06 21:57:24,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:24,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802267088] [2023-11-06 21:57:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:24,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 21:57:24,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802267088] [2023-11-06 21:57:25,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802267088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:25,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:25,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:57:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600480323] [2023-11-06 21:57:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:25,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:57:25,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:57:25,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:57:25,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 1183 [2023-11-06 21:57:25,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 427 flow. Second operand has 6 states, 6 states have (on average 556.1666666666666) internal successors, (3337), 6 states have internal predecessors, (3337), 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 21:57:25,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:25,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 1183 [2023-11-06 21:57:25,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand