./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:52:02,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:52:02,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 00:52:02,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:52:02,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:52:02,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:52:02,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:52:02,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:52:02,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:52:02,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:52:02,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:52:02,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:52:02,797 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:52:02,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:52:02,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:52:02,798 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:52:02,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:52:02,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:52:02,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:52:02,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:52:02,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:52:02,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:52:02,801 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 00:52:02,802 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:52:02,802 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:52:02,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:52:02,803 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:52:02,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:52:02,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:52:02,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:52:02,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:52:02,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:52:02,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:52:02,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:52:02,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:52:02,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:52:02,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:52:02,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:52:02,807 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:52:02,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:52:02,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:52:02,808 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_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2023-11-29 00:52:03,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:52:03,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:52:03,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:52:03,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:52:03,066 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:52:03,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2023-11-29 00:52:05,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:52:06,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:52:06,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2023-11-29 00:52:06,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/data/fe93275da/c8f3afc832c246858a85e7c44980a635/FLAG4d6ff2717 [2023-11-29 00:52:06,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/data/fe93275da/c8f3afc832c246858a85e7c44980a635 [2023-11-29 00:52:06,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:52:06,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:52:06,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:52:06,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:52:06,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:52:06,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2322788c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06, skipping insertion in model container [2023-11-29 00:52:06,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,155 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:52:06,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:52:06,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:52:06,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:52:06,831 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:52:06,831 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:52:06,839 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:52:06,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06 WrapperNode [2023-11-29 00:52:06,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:52:06,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:52:06,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:52:06,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:52:06,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,891 INFO L138 Inliner]: procedures = 324, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-29 00:52:06,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:52:06,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:52:06,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:52:06,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:52:06,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:52:06,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:52:06,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:52:06,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:52:06,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (1/1) ... [2023-11-29 00:52:06,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:52:06,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:06,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:52:06,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a9075c2-5245-419c-88fb-26d787bb3ca7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:52:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 00:52:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:52:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 00:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 00:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-11-29 00:52:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-11-29 00:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 00:52:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 00:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 00:52:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 00:52:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 00:52:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 00:52:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 00:52:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:52:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:52:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 00:52:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:52:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:52:06,999 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:52:07,140 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:52:07,142 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:52:07,456 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:52:07,488 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:52:07,488 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:52:07,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:52:07 BoogieIcfgContainer [2023-11-29 00:52:07,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:52:07,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:52:07,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:52:07,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:52:07,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:52:06" (1/3) ... [2023-11-29 00:52:07,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59829753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:52:07, skipping insertion in model container [2023-11-29 00:52:07,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:06" (2/3) ... [2023-11-29 00:52:07,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59829753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:52:07, skipping insertion in model container [2023-11-29 00:52:07,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:52:07" (3/3) ... [2023-11-29 00:52:07,499 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-11-29 00:52:07,507 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:52:07,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:52:07,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-29 00:52:07,515 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:52:07,648 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-11-29 00:52:07,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 286 transitions, 669 flow [2023-11-29 00:52:07,769 INFO L124 PetriNetUnfolderBase]: 8/199 cut-off events. [2023-11-29 00:52:07,769 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 00:52:07,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 199 events. 8/199 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 158 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 170. Up to 3 conditions per place. [2023-11-29 00:52:07,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 286 transitions, 669 flow [2023-11-29 00:52:07,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 173 transitions, 397 flow [2023-11-29 00:52:07,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:52:07,798 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19cae40f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:52:07,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-29 00:52:07,807 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:52:07,807 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-29 00:52:07,807 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:52:07,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:07,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:07,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:07,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:07,814 INFO L85 PathProgramCache]: Analyzing trace with hash 801025672, now seen corresponding path program 1 times [2023-11-29 00:52:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:07,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987477870] [2023-11-29 00:52:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:07,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:08,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:08,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987477870] [2023-11-29 00:52:08,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987477870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:08,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:08,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:52:08,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780713951] [2023-11-29 00:52:08,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:52:08,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:08,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:52:08,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:52:09,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 288 [2023-11-29 00:52:09,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 173 transitions, 397 flow. Second operand has 6 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:09,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:09,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 288 [2023-11-29 00:52:09,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:09,912 INFO L124 PetriNetUnfolderBase]: 1178/2722 cut-off events. [2023-11-29 00:52:09,912 INFO L125 PetriNetUnfolderBase]: For 808/1023 co-relation queries the response was YES. [2023-11-29 00:52:09,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 2722 events. 1178/2722 cut-off events. For 808/1023 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 17395 event pairs, 361 based on Foata normal form. 13/2407 useless extension candidates. Maximal degree in co-relation 5081. Up to 1195 conditions per place. [2023-11-29 00:52:09,941 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 89 selfloop transitions, 21 changer transitions 0/246 dead transitions. [2023-11-29 00:52:09,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 246 transitions, 946 flow [2023-11-29 00:52:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:52:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:52:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1543 transitions. [2023-11-29 00:52:09,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8929398148148148 [2023-11-29 00:52:09,960 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1543 transitions. [2023-11-29 00:52:09,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1543 transitions. [2023-11-29 00:52:09,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:09,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1543 transitions. [2023-11-29 00:52:09,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:09,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:09,982 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:09,984 INFO L175 Difference]: Start difference. First operand has 187 places, 173 transitions, 397 flow. Second operand 6 states and 1543 transitions. [2023-11-29 00:52:09,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 246 transitions, 946 flow [2023-11-29 00:52:09,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 246 transitions, 790 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-29 00:52:10,003 INFO L231 Difference]: Finished difference. Result has 177 places, 185 transitions, 489 flow [2023-11-29 00:52:10,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=489, PETRI_PLACES=177, PETRI_TRANSITIONS=185} [2023-11-29 00:52:10,008 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, -10 predicate places. [2023-11-29 00:52:10,008 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 185 transitions, 489 flow [2023-11-29 00:52:10,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:10,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:10,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:10,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:52:10,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:10,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:10,011 INFO L85 PathProgramCache]: Analyzing trace with hash 464122076, now seen corresponding path program 1 times [2023-11-29 00:52:10,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:10,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166767734] [2023-11-29 00:52:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:10,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166767734] [2023-11-29 00:52:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166767734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:10,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:52:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371559232] [2023-11-29 00:52:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:10,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:52:10,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:52:10,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:52:10,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 288 [2023-11-29 00:52:10,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 185 transitions, 489 flow. Second operand has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:10,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:10,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 288 [2023-11-29 00:52:10,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:10,428 INFO L124 PetriNetUnfolderBase]: 769/2161 cut-off events. [2023-11-29 00:52:10,428 INFO L125 PetriNetUnfolderBase]: For 1147/1335 co-relation queries the response was YES. [2023-11-29 00:52:10,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4645 conditions, 2161 events. 769/2161 cut-off events. For 1147/1335 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13770 event pairs, 306 based on Foata normal form. 0/1967 useless extension candidates. Maximal degree in co-relation 2955. Up to 939 conditions per place. [2023-11-29 00:52:10,462 INFO L140 encePairwiseOnDemand]: 285/288 looper letters, 41 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2023-11-29 00:52:10,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 184 transitions, 573 flow [2023-11-29 00:52:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:52:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:52:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2023-11-29 00:52:10,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8483796296296297 [2023-11-29 00:52:10,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2023-11-29 00:52:10,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2023-11-29 00:52:10,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:10,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2023-11-29 00:52:10,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:10,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 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) [2023-11-29 00:52:10,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 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) [2023-11-29 00:52:10,473 INFO L175 Difference]: Start difference. First operand has 177 places, 185 transitions, 489 flow. Second operand 3 states and 733 transitions. [2023-11-29 00:52:10,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 184 transitions, 573 flow [2023-11-29 00:52:10,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 184 transitions, 573 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:52:10,483 INFO L231 Difference]: Finished difference. Result has 178 places, 184 transitions, 491 flow [2023-11-29 00:52:10,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=178, PETRI_TRANSITIONS=184} [2023-11-29 00:52:10,484 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, -9 predicate places. [2023-11-29 00:52:10,485 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 184 transitions, 491 flow [2023-11-29 00:52:10,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:10,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:10,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:10,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:52:10,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:10,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:10,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1911541757, now seen corresponding path program 1 times [2023-11-29 00:52:10,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:10,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367115231] [2023-11-29 00:52:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:10,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:10,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:10,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367115231] [2023-11-29 00:52:10,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367115231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:10,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:10,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:52:10,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943991975] [2023-11-29 00:52:10,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:10,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:52:10,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:52:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:52:11,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 288 [2023-11-29 00:52:11,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 184 transitions, 491 flow. Second operand has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:11,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:11,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 288 [2023-11-29 00:52:11,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:11,714 INFO L124 PetriNetUnfolderBase]: 745/1973 cut-off events. [2023-11-29 00:52:11,714 INFO L125 PetriNetUnfolderBase]: For 1117/1295 co-relation queries the response was YES. [2023-11-29 00:52:11,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4462 conditions, 1973 events. 745/1973 cut-off events. For 1117/1295 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12126 event pairs, 144 based on Foata normal form. 5/1804 useless extension candidates. Maximal degree in co-relation 4415. Up to 934 conditions per place. [2023-11-29 00:52:11,740 INFO L140 encePairwiseOnDemand]: 279/288 looper letters, 43 selfloop transitions, 24 changer transitions 0/206 dead transitions. [2023-11-29 00:52:11,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 206 transitions, 744 flow [2023-11-29 00:52:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:52:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:52:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1440 transitions. [2023-11-29 00:52:11,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-29 00:52:11,745 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1440 transitions. [2023-11-29 00:52:11,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1440 transitions. [2023-11-29 00:52:11,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:11,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1440 transitions. [2023-11-29 00:52:11,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:11,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:11,757 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:11,757 INFO L175 Difference]: Start difference. First operand has 178 places, 184 transitions, 491 flow. Second operand 6 states and 1440 transitions. [2023-11-29 00:52:11,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 206 transitions, 744 flow [2023-11-29 00:52:11,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 206 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:52:11,766 INFO L231 Difference]: Finished difference. Result has 181 places, 203 transitions, 706 flow [2023-11-29 00:52:11,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=706, PETRI_PLACES=181, PETRI_TRANSITIONS=203} [2023-11-29 00:52:11,767 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, -6 predicate places. [2023-11-29 00:52:11,768 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 203 transitions, 706 flow [2023-11-29 00:52:11,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:11,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:11,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:11,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:52:11,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:11,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash -24631151, now seen corresponding path program 1 times [2023-11-29 00:52:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:11,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331239271] [2023-11-29 00:52:11,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331239271] [2023-11-29 00:52:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331239271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:12,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:12,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:52:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062338039] [2023-11-29 00:52:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:12,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:52:12,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:12,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:52:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:52:13,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 288 [2023-11-29 00:52:13,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 203 transitions, 706 flow. Second operand has 10 states, 10 states have (on average 229.6) internal successors, (2296), 10 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:13,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:13,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 288 [2023-11-29 00:52:13,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:14,630 INFO L124 PetriNetUnfolderBase]: 1649/4209 cut-off events. [2023-11-29 00:52:14,631 INFO L125 PetriNetUnfolderBase]: For 2441/2689 co-relation queries the response was YES. [2023-11-29 00:52:14,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10264 conditions, 4209 events. 1649/4209 cut-off events. For 2441/2689 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 29875 event pairs, 409 based on Foata normal form. 50/3679 useless extension candidates. Maximal degree in co-relation 6630. Up to 997 conditions per place. [2023-11-29 00:52:14,680 INFO L140 encePairwiseOnDemand]: 278/288 looper letters, 169 selfloop transitions, 26 changer transitions 0/325 dead transitions. [2023-11-29 00:52:14,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 325 transitions, 1665 flow [2023-11-29 00:52:14,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:52:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 00:52:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3784 transitions. [2023-11-29 00:52:14,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8211805555555556 [2023-11-29 00:52:14,693 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3784 transitions. [2023-11-29 00:52:14,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3784 transitions. [2023-11-29 00:52:14,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:14,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3784 transitions. [2023-11-29 00:52:14,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 236.5) internal successors, (3784), 16 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:14,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:14,724 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:14,724 INFO L175 Difference]: Start difference. First operand has 181 places, 203 transitions, 706 flow. Second operand 16 states and 3784 transitions. [2023-11-29 00:52:14,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 325 transitions, 1665 flow [2023-11-29 00:52:14,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 325 transitions, 1622 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:52:14,738 INFO L231 Difference]: Finished difference. Result has 201 places, 226 transitions, 895 flow [2023-11-29 00:52:14,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=895, PETRI_PLACES=201, PETRI_TRANSITIONS=226} [2023-11-29 00:52:14,740 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 14 predicate places. [2023-11-29 00:52:14,740 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 226 transitions, 895 flow [2023-11-29 00:52:14,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 229.6) internal successors, (2296), 10 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:14,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:14,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:14,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:52:14,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:14,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash 295254821, now seen corresponding path program 2 times [2023-11-29 00:52:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:14,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433656775] [2023-11-29 00:52:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:15,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:15,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433656775] [2023-11-29 00:52:15,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433656775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:15,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:15,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48997752] [2023-11-29 00:52:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:15,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:17,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:17,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 226 transitions, 895 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:17,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:17,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:17,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:18,684 INFO L124 PetriNetUnfolderBase]: 2065/5243 cut-off events. [2023-11-29 00:52:18,685 INFO L125 PetriNetUnfolderBase]: For 6069/6368 co-relation queries the response was YES. [2023-11-29 00:52:18,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14303 conditions, 5243 events. 2065/5243 cut-off events. For 6069/6368 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 38675 event pairs, 490 based on Foata normal form. 65/4613 useless extension candidates. Maximal degree in co-relation 9749. Up to 1877 conditions per place. [2023-11-29 00:52:18,726 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 215 selfloop transitions, 75 changer transitions 0/413 dead transitions. [2023-11-29 00:52:18,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 413 transitions, 2427 flow [2023-11-29 00:52:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:52:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 00:52:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3420 transitions. [2023-11-29 00:52:18,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2023-11-29 00:52:18,736 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3420 transitions. [2023-11-29 00:52:18,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3420 transitions. [2023-11-29 00:52:18,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:18,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3420 transitions. [2023-11-29 00:52:18,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 228.0) internal successors, (3420), 15 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:18,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 288.0) internal successors, (4608), 16 states have internal predecessors, (4608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:18,758 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 288.0) internal successors, (4608), 16 states have internal predecessors, (4608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:18,758 INFO L175 Difference]: Start difference. First operand has 201 places, 226 transitions, 895 flow. Second operand 15 states and 3420 transitions. [2023-11-29 00:52:18,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 413 transitions, 2427 flow [2023-11-29 00:52:18,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 413 transitions, 2410 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-29 00:52:18,789 INFO L231 Difference]: Finished difference. Result has 225 places, 279 transitions, 1635 flow [2023-11-29 00:52:18,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1635, PETRI_PLACES=225, PETRI_TRANSITIONS=279} [2023-11-29 00:52:18,791 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 38 predicate places. [2023-11-29 00:52:18,791 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 279 transitions, 1635 flow [2023-11-29 00:52:18,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:18,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:18,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:18,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:52:18,793 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:18,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1943601061, now seen corresponding path program 3 times [2023-11-29 00:52:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236404157] [2023-11-29 00:52:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:19,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236404157] [2023-11-29 00:52:19,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236404157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:19,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:19,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:19,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133885562] [2023-11-29 00:52:19,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:19,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:19,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:19,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:19,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:21,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:21,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 279 transitions, 1635 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:21,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:21,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:21,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:23,331 INFO L124 PetriNetUnfolderBase]: 2381/6607 cut-off events. [2023-11-29 00:52:23,331 INFO L125 PetriNetUnfolderBase]: For 14251/14574 co-relation queries the response was YES. [2023-11-29 00:52:23,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19524 conditions, 6607 events. 2381/6607 cut-off events. For 14251/14574 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 53812 event pairs, 557 based on Foata normal form. 137/5881 useless extension candidates. Maximal degree in co-relation 18636. Up to 2057 conditions per place. [2023-11-29 00:52:23,385 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 214 selfloop transitions, 103 changer transitions 0/440 dead transitions. [2023-11-29 00:52:23,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 440 transitions, 3145 flow [2023-11-29 00:52:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:52:23,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 00:52:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3201 transitions. [2023-11-29 00:52:23,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7938988095238095 [2023-11-29 00:52:23,396 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3201 transitions. [2023-11-29 00:52:23,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3201 transitions. [2023-11-29 00:52:23,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:23,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3201 transitions. [2023-11-29 00:52:23,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 228.64285714285714) internal successors, (3201), 14 states have internal predecessors, (3201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:23,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 288.0) internal successors, (4320), 15 states have internal predecessors, (4320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:23,418 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 288.0) internal successors, (4320), 15 states have internal predecessors, (4320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:23,419 INFO L175 Difference]: Start difference. First operand has 225 places, 279 transitions, 1635 flow. Second operand 14 states and 3201 transitions. [2023-11-29 00:52:23,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 440 transitions, 3145 flow [2023-11-29 00:52:23,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 440 transitions, 3139 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-29 00:52:23,487 INFO L231 Difference]: Finished difference. Result has 250 places, 322 transitions, 2495 flow [2023-11-29 00:52:23,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2495, PETRI_PLACES=250, PETRI_TRANSITIONS=322} [2023-11-29 00:52:23,489 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 63 predicate places. [2023-11-29 00:52:23,489 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 322 transitions, 2495 flow [2023-11-29 00:52:23,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:23,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:23,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:23,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:52:23,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:23,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash 655742878, now seen corresponding path program 1 times [2023-11-29 00:52:23,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:23,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098201340] [2023-11-29 00:52:23,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:23,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:24,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:24,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098201340] [2023-11-29 00:52:24,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098201340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:24,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:24,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:24,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490323153] [2023-11-29 00:52:24,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:24,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:24,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:24,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:24,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:26,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:26,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 322 transitions, 2495 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:26,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:26,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:26,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:28,635 INFO L124 PetriNetUnfolderBase]: 2745/7254 cut-off events. [2023-11-29 00:52:28,635 INFO L125 PetriNetUnfolderBase]: For 23827/24348 co-relation queries the response was YES. [2023-11-29 00:52:28,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24616 conditions, 7254 events. 2745/7254 cut-off events. For 23827/24348 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 59064 event pairs, 728 based on Foata normal form. 159/6400 useless extension candidates. Maximal degree in co-relation 23556. Up to 2159 conditions per place. [2023-11-29 00:52:28,720 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 273 selfloop transitions, 121 changer transitions 0/517 dead transitions. [2023-11-29 00:52:28,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 517 transitions, 4594 flow [2023-11-29 00:52:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:52:28,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:52:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4526 transitions. [2023-11-29 00:52:28,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7857638888888889 [2023-11-29 00:52:28,730 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4526 transitions. [2023-11-29 00:52:28,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4526 transitions. [2023-11-29 00:52:28,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:28,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4526 transitions. [2023-11-29 00:52:28,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 226.3) internal successors, (4526), 20 states have internal predecessors, (4526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:28,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:28,750 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:28,750 INFO L175 Difference]: Start difference. First operand has 250 places, 322 transitions, 2495 flow. Second operand 20 states and 4526 transitions. [2023-11-29 00:52:28,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 517 transitions, 4594 flow [2023-11-29 00:52:28,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 517 transitions, 4592 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-29 00:52:28,853 INFO L231 Difference]: Finished difference. Result has 284 places, 357 transitions, 3420 flow [2023-11-29 00:52:28,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3420, PETRI_PLACES=284, PETRI_TRANSITIONS=357} [2023-11-29 00:52:28,854 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 97 predicate places. [2023-11-29 00:52:28,854 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 357 transitions, 3420 flow [2023-11-29 00:52:28,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:28,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:28,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:28,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:52:28,856 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:28,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:28,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1581598266, now seen corresponding path program 2 times [2023-11-29 00:52:28,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:28,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868760170] [2023-11-29 00:52:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:28,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:29,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:29,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868760170] [2023-11-29 00:52:29,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868760170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:29,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:29,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:29,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540623407] [2023-11-29 00:52:29,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:29,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:29,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:29,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:32,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:32,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 357 transitions, 3420 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:32,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:32,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:32,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:35,148 INFO L124 PetriNetUnfolderBase]: 3346/9261 cut-off events. [2023-11-29 00:52:35,148 INFO L125 PetriNetUnfolderBase]: For 44798/45335 co-relation queries the response was YES. [2023-11-29 00:52:35,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33243 conditions, 9261 events. 3346/9261 cut-off events. For 44798/45335 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 81863 event pairs, 908 based on Foata normal form. 233/8179 useless extension candidates. Maximal degree in co-relation 32816. Up to 2235 conditions per place. [2023-11-29 00:52:35,221 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 304 selfloop transitions, 162 changer transitions 0/589 dead transitions. [2023-11-29 00:52:35,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 589 transitions, 6301 flow [2023-11-29 00:52:35,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:52:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 00:52:35,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4113 transitions. [2023-11-29 00:52:35,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7934027777777778 [2023-11-29 00:52:35,232 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4113 transitions. [2023-11-29 00:52:35,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4113 transitions. [2023-11-29 00:52:35,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:35,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4113 transitions. [2023-11-29 00:52:35,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 228.5) internal successors, (4113), 18 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:35,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:35,253 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:35,253 INFO L175 Difference]: Start difference. First operand has 284 places, 357 transitions, 3420 flow. Second operand 18 states and 4113 transitions. [2023-11-29 00:52:35,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 589 transitions, 6301 flow [2023-11-29 00:52:35,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 589 transitions, 6199 flow, removed 26 selfloop flow, removed 5 redundant places. [2023-11-29 00:52:35,497 INFO L231 Difference]: Finished difference. Result has 310 places, 415 transitions, 4829 flow [2023-11-29 00:52:35,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=3331, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4829, PETRI_PLACES=310, PETRI_TRANSITIONS=415} [2023-11-29 00:52:35,499 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 123 predicate places. [2023-11-29 00:52:35,499 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 415 transitions, 4829 flow [2023-11-29 00:52:35,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:35,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:35,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:35,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:52:35,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:35,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1928800710, now seen corresponding path program 3 times [2023-11-29 00:52:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801912579] [2023-11-29 00:52:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:35,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:36,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:36,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801912579] [2023-11-29 00:52:36,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801912579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:36,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:36,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:36,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203176876] [2023-11-29 00:52:36,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:36,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:36,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:36,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:36,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:38,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:38,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 415 transitions, 4829 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:38,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:38,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:38,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:41,647 INFO L124 PetriNetUnfolderBase]: 4477/12542 cut-off events. [2023-11-29 00:52:41,647 INFO L125 PetriNetUnfolderBase]: For 75240/75934 co-relation queries the response was YES. [2023-11-29 00:52:41,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46503 conditions, 12542 events. 4477/12542 cut-off events. For 75240/75934 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 117325 event pairs, 1264 based on Foata normal form. 132/10925 useless extension candidates. Maximal degree in co-relation 45416. Up to 2875 conditions per place. [2023-11-29 00:52:41,761 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 400 selfloop transitions, 216 changer transitions 0/739 dead transitions. [2023-11-29 00:52:41,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 739 transitions, 9800 flow [2023-11-29 00:52:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 00:52:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-29 00:52:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 6503 transitions. [2023-11-29 00:52:41,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7786159003831418 [2023-11-29 00:52:41,772 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 6503 transitions. [2023-11-29 00:52:41,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 6503 transitions. [2023-11-29 00:52:41,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:41,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 6503 transitions. [2023-11-29 00:52:41,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 224.24137931034483) internal successors, (6503), 29 states have internal predecessors, (6503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:41,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 288.0) internal successors, (8640), 30 states have internal predecessors, (8640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:41,802 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 288.0) internal successors, (8640), 30 states have internal predecessors, (8640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:41,802 INFO L175 Difference]: Start difference. First operand has 310 places, 415 transitions, 4829 flow. Second operand 29 states and 6503 transitions. [2023-11-29 00:52:41,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 739 transitions, 9800 flow [2023-11-29 00:52:42,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 739 transitions, 9549 flow, removed 47 selfloop flow, removed 4 redundant places. [2023-11-29 00:52:42,108 INFO L231 Difference]: Finished difference. Result has 355 places, 518 transitions, 7354 flow [2023-11-29 00:52:42,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=4674, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=7354, PETRI_PLACES=355, PETRI_TRANSITIONS=518} [2023-11-29 00:52:42,109 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 168 predicate places. [2023-11-29 00:52:42,109 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 518 transitions, 7354 flow [2023-11-29 00:52:42,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:42,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:42,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:42,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:52:42,110 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:42,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash -479611000, now seen corresponding path program 4 times [2023-11-29 00:52:42,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:42,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693891705] [2023-11-29 00:52:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:42,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:42,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:42,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693891705] [2023-11-29 00:52:42,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693891705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:42,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:42,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:42,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649456719] [2023-11-29 00:52:42,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:42,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:42,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:44,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:44,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 518 transitions, 7354 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:44,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:44,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:44,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:48,640 INFO L124 PetriNetUnfolderBase]: 5147/14357 cut-off events. [2023-11-29 00:52:48,640 INFO L125 PetriNetUnfolderBase]: For 101445/103104 co-relation queries the response was YES. [2023-11-29 00:52:48,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56773 conditions, 14357 events. 5147/14357 cut-off events. For 101445/103104 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 139262 event pairs, 1680 based on Foata normal form. 116/12410 useless extension candidates. Maximal degree in co-relation 55960. Up to 5350 conditions per place. [2023-11-29 00:52:48,810 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 317 selfloop transitions, 247 changer transitions 0/687 dead transitions. [2023-11-29 00:52:48,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 687 transitions, 11102 flow [2023-11-29 00:52:48,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:52:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 00:52:48,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3571 transitions. [2023-11-29 00:52:48,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7749565972222222 [2023-11-29 00:52:48,817 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3571 transitions. [2023-11-29 00:52:48,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3571 transitions. [2023-11-29 00:52:48,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:48,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3571 transitions. [2023-11-29 00:52:48,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 223.1875) internal successors, (3571), 16 states have internal predecessors, (3571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:48,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:48,834 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:48,834 INFO L175 Difference]: Start difference. First operand has 355 places, 518 transitions, 7354 flow. Second operand 16 states and 3571 transitions. [2023-11-29 00:52:48,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 687 transitions, 11102 flow [2023-11-29 00:52:49,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 687 transitions, 10782 flow, removed 160 selfloop flow, removed 0 redundant places. [2023-11-29 00:52:49,428 INFO L231 Difference]: Finished difference. Result has 382 places, 588 transitions, 9575 flow [2023-11-29 00:52:49,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=7094, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9575, PETRI_PLACES=382, PETRI_TRANSITIONS=588} [2023-11-29 00:52:49,430 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 195 predicate places. [2023-11-29 00:52:49,430 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 588 transitions, 9575 flow [2023-11-29 00:52:49,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:49,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:49,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:49,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:52:49,431 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:49,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:49,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2126072216, now seen corresponding path program 5 times [2023-11-29 00:52:49,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:49,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064546326] [2023-11-29 00:52:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:49,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:49,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:49,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064546326] [2023-11-29 00:52:49,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064546326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:49,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:49,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:49,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979584609] [2023-11-29 00:52:49,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:49,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:49,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:49,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:49,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:52:51,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:52:51,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 588 transitions, 9575 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:51,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:52:51,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:52:51,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:52:57,162 INFO L124 PetriNetUnfolderBase]: 6041/17942 cut-off events. [2023-11-29 00:52:57,163 INFO L125 PetriNetUnfolderBase]: For 161696/162710 co-relation queries the response was YES. [2023-11-29 00:52:57,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70864 conditions, 17942 events. 6041/17942 cut-off events. For 161696/162710 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 185756 event pairs, 1714 based on Foata normal form. 270/15741 useless extension candidates. Maximal degree in co-relation 69724. Up to 4837 conditions per place. [2023-11-29 00:52:57,364 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 410 selfloop transitions, 311 changer transitions 0/844 dead transitions. [2023-11-29 00:52:57,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 844 transitions, 14450 flow [2023-11-29 00:52:57,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:52:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 00:52:57,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5186 transitions. [2023-11-29 00:52:57,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7829106280193237 [2023-11-29 00:52:57,371 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5186 transitions. [2023-11-29 00:52:57,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5186 transitions. [2023-11-29 00:52:57,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:52:57,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5186 transitions. [2023-11-29 00:52:57,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 225.47826086956522) internal successors, (5186), 23 states have internal predecessors, (5186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:57,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:57,383 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:57,383 INFO L175 Difference]: Start difference. First operand has 382 places, 588 transitions, 9575 flow. Second operand 23 states and 5186 transitions. [2023-11-29 00:52:57,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 844 transitions, 14450 flow [2023-11-29 00:52:58,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 844 transitions, 14380 flow, removed 35 selfloop flow, removed 0 redundant places. [2023-11-29 00:52:58,024 INFO L231 Difference]: Finished difference. Result has 420 places, 655 transitions, 12227 flow [2023-11-29 00:52:58,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=9521, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=250, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12227, PETRI_PLACES=420, PETRI_TRANSITIONS=655} [2023-11-29 00:52:58,025 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 233 predicate places. [2023-11-29 00:52:58,025 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 655 transitions, 12227 flow [2023-11-29 00:52:58,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:52:58,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:52:58,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:58,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 00:52:58,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:52:58,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:58,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1363228538, now seen corresponding path program 6 times [2023-11-29 00:52:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:58,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479777500] [2023-11-29 00:52:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:58,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:58,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:58,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479777500] [2023-11-29 00:52:58,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479777500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:58,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:58,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:52:58,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687893315] [2023-11-29 00:52:58,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:58,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:52:58,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:58,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:52:58,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:53:00,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:53:00,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 655 transitions, 12227 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:00,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:53:00,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:53:00,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:53:06,619 INFO L124 PetriNetUnfolderBase]: 6381/19081 cut-off events. [2023-11-29 00:53:06,620 INFO L125 PetriNetUnfolderBase]: For 220487/221716 co-relation queries the response was YES. [2023-11-29 00:53:06,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80355 conditions, 19081 events. 6381/19081 cut-off events. For 220487/221716 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 201491 event pairs, 1803 based on Foata normal form. 390/16832 useless extension candidates. Maximal degree in co-relation 78821. Up to 6521 conditions per place. [2023-11-29 00:53:06,902 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 322 selfloop transitions, 373 changer transitions 0/818 dead transitions. [2023-11-29 00:53:06,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 818 transitions, 16301 flow [2023-11-29 00:53:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:53:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 00:53:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3599 transitions. [2023-11-29 00:53:06,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7810329861111112 [2023-11-29 00:53:06,905 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3599 transitions. [2023-11-29 00:53:06,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3599 transitions. [2023-11-29 00:53:06,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:53:06,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3599 transitions. [2023-11-29 00:53:06,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 224.9375) internal successors, (3599), 16 states have internal predecessors, (3599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:06,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:06,913 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:06,913 INFO L175 Difference]: Start difference. First operand has 420 places, 655 transitions, 12227 flow. Second operand 16 states and 3599 transitions. [2023-11-29 00:53:06,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 818 transitions, 16301 flow [2023-11-29 00:53:08,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 818 transitions, 16009 flow, removed 133 selfloop flow, removed 1 redundant places. [2023-11-29 00:53:08,036 INFO L231 Difference]: Finished difference. Result has 447 places, 718 transitions, 15276 flow [2023-11-29 00:53:08,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=11990, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=316, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=15276, PETRI_PLACES=447, PETRI_TRANSITIONS=718} [2023-11-29 00:53:08,038 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 260 predicate places. [2023-11-29 00:53:08,038 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 718 transitions, 15276 flow [2023-11-29 00:53:08,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:08,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:53:08,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:08,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:53:08,039 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:53:08,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:08,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1465712932, now seen corresponding path program 7 times [2023-11-29 00:53:08,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:08,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711760488] [2023-11-29 00:53:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:08,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:08,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:08,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711760488] [2023-11-29 00:53:08,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711760488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:08,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:53:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854382946] [2023-11-29 00:53:08,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:08,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:53:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:08,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:53:08,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:53:10,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:53:10,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 718 transitions, 15276 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:10,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:53:10,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:53:10,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:53:17,318 INFO L124 PetriNetUnfolderBase]: 6416/19379 cut-off events. [2023-11-29 00:53:17,318 INFO L125 PetriNetUnfolderBase]: For 261571/262831 co-relation queries the response was YES. [2023-11-29 00:53:17,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85283 conditions, 19379 events. 6416/19379 cut-off events. For 261571/262831 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 206291 event pairs, 1738 based on Foata normal form. 457/17178 useless extension candidates. Maximal degree in co-relation 84157. Up to 6513 conditions per place. [2023-11-29 00:53:17,578 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 365 selfloop transitions, 407 changer transitions 0/895 dead transitions. [2023-11-29 00:53:17,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 895 transitions, 19130 flow [2023-11-29 00:53:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:53:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:53:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4508 transitions. [2023-11-29 00:53:17,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7826388888888889 [2023-11-29 00:53:17,582 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4508 transitions. [2023-11-29 00:53:17,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4508 transitions. [2023-11-29 00:53:17,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:53:17,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4508 transitions. [2023-11-29 00:53:17,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 225.4) internal successors, (4508), 20 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:17,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:17,592 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:17,592 INFO L175 Difference]: Start difference. First operand has 447 places, 718 transitions, 15276 flow. Second operand 20 states and 4508 transitions. [2023-11-29 00:53:17,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 895 transitions, 19130 flow [2023-11-29 00:53:18,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 895 transitions, 18846 flow, removed 142 selfloop flow, removed 0 redundant places. [2023-11-29 00:53:18,750 INFO L231 Difference]: Finished difference. Result has 475 places, 762 transitions, 17574 flow [2023-11-29 00:53:18,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=15066, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=17574, PETRI_PLACES=475, PETRI_TRANSITIONS=762} [2023-11-29 00:53:18,751 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 288 predicate places. [2023-11-29 00:53:18,751 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 762 transitions, 17574 flow [2023-11-29 00:53:18,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:18,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:53:18,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:18,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 00:53:18,752 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:53:18,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:18,752 INFO L85 PathProgramCache]: Analyzing trace with hash -729563846, now seen corresponding path program 8 times [2023-11-29 00:53:18,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:18,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258825491] [2023-11-29 00:53:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:19,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258825491] [2023-11-29 00:53:19,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258825491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:19,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:19,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:53:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001323484] [2023-11-29 00:53:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:19,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:53:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:19,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:53:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:53:21,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:53:21,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 762 transitions, 17574 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:21,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:53:21,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:53:21,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:53:28,820 INFO L124 PetriNetUnfolderBase]: 7206/21342 cut-off events. [2023-11-29 00:53:28,820 INFO L125 PetriNetUnfolderBase]: For 358935/360522 co-relation queries the response was YES. [2023-11-29 00:53:29,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100612 conditions, 21342 events. 7206/21342 cut-off events. For 358935/360522 co-relation queries the response was YES. Maximal size of possible extension queue 820. Compared 229216 event pairs, 2033 based on Foata normal form. 572/18940 useless extension candidates. Maximal degree in co-relation 99005. Up to 6515 conditions per place. [2023-11-29 00:53:29,222 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 415 selfloop transitions, 441 changer transitions 0/979 dead transitions. [2023-11-29 00:53:29,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 979 transitions, 22903 flow [2023-11-29 00:53:29,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:53:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 00:53:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5170 transitions. [2023-11-29 00:53:29,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7804951690821256 [2023-11-29 00:53:29,229 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5170 transitions. [2023-11-29 00:53:29,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5170 transitions. [2023-11-29 00:53:29,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:53:29,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5170 transitions. [2023-11-29 00:53:29,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 224.7826086956522) internal successors, (5170), 23 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:29,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:29,245 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:29,245 INFO L175 Difference]: Start difference. First operand has 475 places, 762 transitions, 17574 flow. Second operand 23 states and 5170 transitions. [2023-11-29 00:53:29,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 979 transitions, 22903 flow [2023-11-29 00:53:31,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 979 transitions, 22729 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-11-29 00:53:31,330 INFO L231 Difference]: Finished difference. Result has 511 places, 821 transitions, 20700 flow [2023-11-29 00:53:31,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=17404, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=386, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=20700, PETRI_PLACES=511, PETRI_TRANSITIONS=821} [2023-11-29 00:53:31,332 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 324 predicate places. [2023-11-29 00:53:31,332 INFO L495 AbstractCegarLoop]: Abstraction has has 511 places, 821 transitions, 20700 flow [2023-11-29 00:53:31,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:31,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:53:31,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:31,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 00:53:31,333 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:53:31,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1054810656, now seen corresponding path program 9 times [2023-11-29 00:53:31,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:31,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233671570] [2023-11-29 00:53:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:31,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:31,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:31,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233671570] [2023-11-29 00:53:31,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233671570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:31,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:31,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:53:31,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689027144] [2023-11-29 00:53:31,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:31,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:53:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:53:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:53:33,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:53:33,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 821 transitions, 20700 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:33,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:53:33,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:53:33,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:53:41,426 INFO L124 PetriNetUnfolderBase]: 7233/21730 cut-off events. [2023-11-29 00:53:41,427 INFO L125 PetriNetUnfolderBase]: For 412876/414321 co-relation queries the response was YES. [2023-11-29 00:53:41,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106295 conditions, 21730 events. 7233/21730 cut-off events. For 412876/414321 co-relation queries the response was YES. Maximal size of possible extension queue 839. Compared 235446 event pairs, 2029 based on Foata normal form. 520/19230 useless extension candidates. Maximal degree in co-relation 104296. Up to 7097 conditions per place. [2023-11-29 00:53:41,798 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 380 selfloop transitions, 465 changer transitions 0/968 dead transitions. [2023-11-29 00:53:41,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 968 transitions, 24551 flow [2023-11-29 00:53:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:53:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 00:53:41,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4052 transitions. [2023-11-29 00:53:41,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7816358024691358 [2023-11-29 00:53:41,803 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4052 transitions. [2023-11-29 00:53:41,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4052 transitions. [2023-11-29 00:53:41,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:53:41,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4052 transitions. [2023-11-29 00:53:41,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 225.11111111111111) internal successors, (4052), 18 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:41,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:41,811 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:41,811 INFO L175 Difference]: Start difference. First operand has 511 places, 821 transitions, 20700 flow. Second operand 18 states and 4052 transitions. [2023-11-29 00:53:41,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 968 transitions, 24551 flow [2023-11-29 00:53:44,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 968 transitions, 24279 flow, removed 136 selfloop flow, removed 0 redundant places. [2023-11-29 00:53:44,139 INFO L231 Difference]: Finished difference. Result has 537 places, 855 transitions, 23194 flow [2023-11-29 00:53:44,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=20456, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=431, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=23194, PETRI_PLACES=537, PETRI_TRANSITIONS=855} [2023-11-29 00:53:44,141 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 350 predicate places. [2023-11-29 00:53:44,141 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 855 transitions, 23194 flow [2023-11-29 00:53:44,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:44,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:53:44,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:44,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 00:53:44,142 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:53:44,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:44,142 INFO L85 PathProgramCache]: Analyzing trace with hash 509126170, now seen corresponding path program 10 times [2023-11-29 00:53:44,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:44,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526161884] [2023-11-29 00:53:44,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:44,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:44,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:44,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526161884] [2023-11-29 00:53:44,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526161884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:44,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:44,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:53:44,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125199681] [2023-11-29 00:53:44,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:44,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:53:44,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:44,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:53:44,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:53:46,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:53:46,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 855 transitions, 23194 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:46,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:53:46,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:53:46,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:53:54,837 INFO L124 PetriNetUnfolderBase]: 7730/22075 cut-off events. [2023-11-29 00:53:54,837 INFO L125 PetriNetUnfolderBase]: For 477336/479524 co-relation queries the response was YES. [2023-11-29 00:53:55,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117003 conditions, 22075 events. 7730/22075 cut-off events. For 477336/479524 co-relation queries the response was YES. Maximal size of possible extension queue 839. Compared 234103 event pairs, 2389 based on Foata normal form. 364/19215 useless extension candidates. Maximal degree in co-relation 114946. Up to 6978 conditions per place. [2023-11-29 00:53:55,258 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 544 selfloop transitions, 427 changer transitions 0/1094 dead transitions. [2023-11-29 00:53:55,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 1094 transitions, 29709 flow [2023-11-29 00:53:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 00:53:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-29 00:53:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 5818 transitions. [2023-11-29 00:53:55,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7769764957264957 [2023-11-29 00:53:55,263 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 5818 transitions. [2023-11-29 00:53:55,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 5818 transitions. [2023-11-29 00:53:55,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:53:55,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 5818 transitions. [2023-11-29 00:53:55,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 223.76923076923077) internal successors, (5818), 26 states have internal predecessors, (5818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:55,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 288.0) internal successors, (7776), 27 states have internal predecessors, (7776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:55,273 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 288.0) internal successors, (7776), 27 states have internal predecessors, (7776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:55,273 INFO L175 Difference]: Start difference. First operand has 537 places, 855 transitions, 23194 flow. Second operand 26 states and 5818 transitions. [2023-11-29 00:53:55,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 1094 transitions, 29709 flow [2023-11-29 00:53:58,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 1094 transitions, 29524 flow, removed 52 selfloop flow, removed 6 redundant places. [2023-11-29 00:53:58,711 INFO L231 Difference]: Finished difference. Result has 573 places, 902 transitions, 25801 flow [2023-11-29 00:53:58,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=23039, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=855, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=380, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=25801, PETRI_PLACES=573, PETRI_TRANSITIONS=902} [2023-11-29 00:53:58,712 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 386 predicate places. [2023-11-29 00:53:58,712 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 902 transitions, 25801 flow [2023-11-29 00:53:58,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:58,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:53:58,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:58,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 00:53:58,713 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:53:58,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash -83624157, now seen corresponding path program 4 times [2023-11-29 00:53:58,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:58,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028738760] [2023-11-29 00:53:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:59,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028738760] [2023-11-29 00:53:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028738760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:59,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:53:59,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131796159] [2023-11-29 00:53:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:59,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:53:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:53:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:54:00,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:54:00,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 902 transitions, 25801 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:00,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:54:00,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:54:00,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:54:10,203 INFO L124 PetriNetUnfolderBase]: 8103/23146 cut-off events. [2023-11-29 00:54:10,203 INFO L125 PetriNetUnfolderBase]: For 558499/560890 co-relation queries the response was YES. [2023-11-29 00:54:10,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127258 conditions, 23146 events. 8103/23146 cut-off events. For 558499/560890 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 248021 event pairs, 2550 based on Foata normal form. 330/20093 useless extension candidates. Maximal degree in co-relation 126051. Up to 8338 conditions per place. [2023-11-29 00:54:10,667 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 475 selfloop transitions, 442 changer transitions 0/1040 dead transitions. [2023-11-29 00:54:10,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 1040 transitions, 30198 flow [2023-11-29 00:54:10,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:54:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 00:54:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4024 transitions. [2023-11-29 00:54:10,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7762345679012346 [2023-11-29 00:54:10,672 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4024 transitions. [2023-11-29 00:54:10,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4024 transitions. [2023-11-29 00:54:10,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:54:10,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4024 transitions. [2023-11-29 00:54:10,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 223.55555555555554) internal successors, (4024), 18 states have internal predecessors, (4024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:10,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:10,681 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:10,681 INFO L175 Difference]: Start difference. First operand has 573 places, 902 transitions, 25801 flow. Second operand 18 states and 4024 transitions. [2023-11-29 00:54:10,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 1040 transitions, 30198 flow [2023-11-29 00:54:15,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 1040 transitions, 29765 flow, removed 180 selfloop flow, removed 2 redundant places. [2023-11-29 00:54:15,613 INFO L231 Difference]: Finished difference. Result has 597 places, 933 transitions, 28229 flow [2023-11-29 00:54:15,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=25404, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=411, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=28229, PETRI_PLACES=597, PETRI_TRANSITIONS=933} [2023-11-29 00:54:15,615 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 410 predicate places. [2023-11-29 00:54:15,615 INFO L495 AbstractCegarLoop]: Abstraction has has 597 places, 933 transitions, 28229 flow [2023-11-29 00:54:15,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:15,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:54:15,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:15,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 00:54:15,616 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:54:15,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:15,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2028368697, now seen corresponding path program 5 times [2023-11-29 00:54:15,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:15,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500714401] [2023-11-29 00:54:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:54:16,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:54:16,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500714401] [2023-11-29 00:54:16,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500714401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:54:16,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:54:16,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:54:16,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6735695] [2023-11-29 00:54:16,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:54:16,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:54:16,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:54:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:54:16,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:54:18,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:54:18,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 933 transitions, 28229 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:18,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:54:18,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:54:18,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:54:28,401 INFO L124 PetriNetUnfolderBase]: 8133/23404 cut-off events. [2023-11-29 00:54:28,401 INFO L125 PetriNetUnfolderBase]: For 593397/595713 co-relation queries the response was YES. [2023-11-29 00:54:28,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131408 conditions, 23404 events. 8133/23404 cut-off events. For 593397/595713 co-relation queries the response was YES. Maximal size of possible extension queue 890. Compared 251373 event pairs, 2487 based on Foata normal form. 398/20360 useless extension candidates. Maximal degree in co-relation 129864. Up to 7762 conditions per place. [2023-11-29 00:54:28,869 INFO L140 encePairwiseOnDemand]: 271/288 looper letters, 529 selfloop transitions, 464 changer transitions 0/1116 dead transitions. [2023-11-29 00:54:28,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 1116 transitions, 33868 flow [2023-11-29 00:54:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:54:28,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 00:54:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5141 transitions. [2023-11-29 00:54:28,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7761171497584541 [2023-11-29 00:54:28,873 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5141 transitions. [2023-11-29 00:54:28,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5141 transitions. [2023-11-29 00:54:28,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:54:28,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5141 transitions. [2023-11-29 00:54:28,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 223.52173913043478) internal successors, (5141), 23 states have internal predecessors, (5141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:28,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:28,884 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:28,884 INFO L175 Difference]: Start difference. First operand has 597 places, 933 transitions, 28229 flow. Second operand 23 states and 5141 transitions. [2023-11-29 00:54:28,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 1116 transitions, 33868 flow [2023-11-29 00:54:33,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 1116 transitions, 33569 flow, removed 82 selfloop flow, removed 6 redundant places. [2023-11-29 00:54:33,823 INFO L231 Difference]: Finished difference. Result has 626 places, 967 transitions, 30669 flow [2023-11-29 00:54:33,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=27973, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=30669, PETRI_PLACES=626, PETRI_TRANSITIONS=967} [2023-11-29 00:54:33,824 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 439 predicate places. [2023-11-29 00:54:33,825 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 967 transitions, 30669 flow [2023-11-29 00:54:33,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:33,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:54:33,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:33,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 00:54:33,825 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:54:33,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1664741745, now seen corresponding path program 6 times [2023-11-29 00:54:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:33,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856176953] [2023-11-29 00:54:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:54:34,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:54:34,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856176953] [2023-11-29 00:54:34,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856176953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:54:34,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:54:34,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:54:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129386895] [2023-11-29 00:54:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:54:34,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:54:34,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:54:34,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:54:34,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:54:36,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:54:36,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 967 transitions, 30669 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:36,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:54:36,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:54:36,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:54:49,334 INFO L124 PetriNetUnfolderBase]: 9408/29014 cut-off events. [2023-11-29 00:54:49,334 INFO L125 PetriNetUnfolderBase]: For 855045/857042 co-relation queries the response was YES. [2023-11-29 00:54:49,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158361 conditions, 29014 events. 9408/29014 cut-off events. For 855045/857042 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 333977 event pairs, 2551 based on Foata normal form. 775/25840 useless extension candidates. Maximal degree in co-relation 156740. Up to 8239 conditions per place. [2023-11-29 00:54:49,996 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 604 selfloop transitions, 525 changer transitions 0/1252 dead transitions. [2023-11-29 00:54:49,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 1252 transitions, 38713 flow [2023-11-29 00:54:49,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:54:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 00:54:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5187 transitions. [2023-11-29 00:54:50,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7830615942028986 [2023-11-29 00:54:50,002 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5187 transitions. [2023-11-29 00:54:50,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5187 transitions. [2023-11-29 00:54:50,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:54:50,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5187 transitions. [2023-11-29 00:54:50,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 225.52173913043478) internal successors, (5187), 23 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:50,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:50,015 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:50,015 INFO L175 Difference]: Start difference. First operand has 626 places, 967 transitions, 30669 flow. Second operand 23 states and 5187 transitions. [2023-11-29 00:54:50,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 1252 transitions, 38713 flow [2023-11-29 00:54:55,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 1252 transitions, 38291 flow, removed 176 selfloop flow, removed 2 redundant places. [2023-11-29 00:54:55,382 INFO L231 Difference]: Finished difference. Result has 663 places, 1079 transitions, 36614 flow [2023-11-29 00:54:55,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=30326, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=426, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=36614, PETRI_PLACES=663, PETRI_TRANSITIONS=1079} [2023-11-29 00:54:55,384 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 476 predicate places. [2023-11-29 00:54:55,384 INFO L495 AbstractCegarLoop]: Abstraction has has 663 places, 1079 transitions, 36614 flow [2023-11-29 00:54:55,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:55,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:54:55,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:55,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 00:54:55,384 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:54:55,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:55,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1103320419, now seen corresponding path program 7 times [2023-11-29 00:54:55,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:55,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750446139] [2023-11-29 00:54:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:55,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:54:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:54:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750446139] [2023-11-29 00:54:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750446139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:54:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:54:55,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:54:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910277604] [2023-11-29 00:54:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:54:55,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:54:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:54:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:54:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:54:57,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:54:57,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1079 transitions, 36614 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:54:57,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:54:57,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:54:57,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:12,593 INFO L124 PetriNetUnfolderBase]: 9773/30459 cut-off events. [2023-11-29 00:55:12,593 INFO L125 PetriNetUnfolderBase]: For 1012593/1014913 co-relation queries the response was YES. [2023-11-29 00:55:13,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172907 conditions, 30459 events. 9773/30459 cut-off events. For 1012593/1014913 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 353801 event pairs, 2712 based on Foata normal form. 995/27238 useless extension candidates. Maximal degree in co-relation 171370. Up to 9156 conditions per place. [2023-11-29 00:55:13,447 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 600 selfloop transitions, 605 changer transitions 0/1328 dead transitions. [2023-11-29 00:55:13,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 1328 transitions, 44289 flow [2023-11-29 00:55:13,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:55:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 00:55:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5180 transitions. [2023-11-29 00:55:13,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7820048309178744 [2023-11-29 00:55:13,451 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5180 transitions. [2023-11-29 00:55:13,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5180 transitions. [2023-11-29 00:55:13,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:13,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5180 transitions. [2023-11-29 00:55:13,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 225.2173913043478) internal successors, (5180), 23 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:13,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:13,458 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:13,458 INFO L175 Difference]: Start difference. First operand has 663 places, 1079 transitions, 36614 flow. Second operand 23 states and 5180 transitions. [2023-11-29 00:55:13,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 1328 transitions, 44289 flow [2023-11-29 00:55:21,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 1328 transitions, 43661 flow, removed 286 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:21,210 INFO L231 Difference]: Finished difference. Result has 694 places, 1152 transitions, 40834 flow [2023-11-29 00:55:21,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=36098, PETRI_DIFFERENCE_MINUEND_PLACES=661, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=544, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=40834, PETRI_PLACES=694, PETRI_TRANSITIONS=1152} [2023-11-29 00:55:21,211 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 507 predicate places. [2023-11-29 00:55:21,212 INFO L495 AbstractCegarLoop]: Abstraction has has 694 places, 1152 transitions, 40834 flow [2023-11-29 00:55:21,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:21,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:21,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:21,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 00:55:21,212 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:55:21,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:21,213 INFO L85 PathProgramCache]: Analyzing trace with hash -349791269, now seen corresponding path program 8 times [2023-11-29 00:55:21,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:21,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108316044] [2023-11-29 00:55:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:21,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:21,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108316044] [2023-11-29 00:55:21,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108316044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:21,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:21,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:55:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988059096] [2023-11-29 00:55:21,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:21,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:55:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:21,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:55:21,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:55:24,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:55:24,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 694 places, 1152 transitions, 40834 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:24,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:24,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:55:24,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:42,973 INFO L124 PetriNetUnfolderBase]: 10201/32498 cut-off events. [2023-11-29 00:55:42,973 INFO L125 PetriNetUnfolderBase]: For 1172109/1174239 co-relation queries the response was YES. [2023-11-29 00:55:43,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186158 conditions, 32498 events. 10201/32498 cut-off events. For 1172109/1174239 co-relation queries the response was YES. Maximal size of possible extension queue 1241. Compared 384380 event pairs, 2819 based on Foata normal form. 944/29035 useless extension candidates. Maximal degree in co-relation 185752. Up to 10389 conditions per place. [2023-11-29 00:55:44,024 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 645 selfloop transitions, 588 changer transitions 0/1356 dead transitions. [2023-11-29 00:55:44,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 1356 transitions, 46791 flow [2023-11-29 00:55:44,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:55:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:55:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4533 transitions. [2023-11-29 00:55:44,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7869791666666667 [2023-11-29 00:55:44,027 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4533 transitions. [2023-11-29 00:55:44,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4533 transitions. [2023-11-29 00:55:44,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:44,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4533 transitions. [2023-11-29 00:55:44,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 226.65) internal successors, (4533), 20 states have internal predecessors, (4533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,036 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,036 INFO L175 Difference]: Start difference. First operand has 694 places, 1152 transitions, 40834 flow. Second operand 20 states and 4533 transitions. [2023-11-29 00:55:44,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 713 places, 1356 transitions, 46791 flow [2023-11-29 00:55:54,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 709 places, 1356 transitions, 46393 flow, removed 164 selfloop flow, removed 4 redundant places. [2023-11-29 00:55:54,051 INFO L231 Difference]: Finished difference. Result has 723 places, 1217 transitions, 45154 flow [2023-11-29 00:55:54,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=40490, PETRI_DIFFERENCE_MINUEND_PLACES=690, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=529, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=45154, PETRI_PLACES=723, PETRI_TRANSITIONS=1217} [2023-11-29 00:55:54,052 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 536 predicate places. [2023-11-29 00:55:54,052 INFO L495 AbstractCegarLoop]: Abstraction has has 723 places, 1217 transitions, 45154 flow [2023-11-29 00:55:54,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:54,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:54,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:54,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 00:55:54,053 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:55:54,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:54,054 INFO L85 PathProgramCache]: Analyzing trace with hash 994078603, now seen corresponding path program 9 times [2023-11-29 00:55:54,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:54,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724025276] [2023-11-29 00:55:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:54,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:54,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:54,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724025276] [2023-11-29 00:55:54,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724025276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:54,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:54,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:55:54,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984773349] [2023-11-29 00:55:54,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:54,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:55:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:54,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:55:54,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:55:56,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:55:56,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 723 places, 1217 transitions, 45154 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:56,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:56,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:55:56,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:56:14,603 INFO L124 PetriNetUnfolderBase]: 10478/33376 cut-off events. [2023-11-29 00:56:14,603 INFO L125 PetriNetUnfolderBase]: For 1365100/1367463 co-relation queries the response was YES. [2023-11-29 00:56:15,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199482 conditions, 33376 events. 10478/33376 cut-off events. For 1365100/1367463 co-relation queries the response was YES. Maximal size of possible extension queue 1273. Compared 396766 event pairs, 2811 based on Foata normal form. 1085/29937 useless extension candidates. Maximal degree in co-relation 199062. Up to 10990 conditions per place. [2023-11-29 00:56:15,794 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 596 selfloop transitions, 652 changer transitions 0/1371 dead transitions. [2023-11-29 00:56:15,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 1371 transitions, 50204 flow [2023-11-29 00:56:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:56:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 00:56:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3640 transitions. [2023-11-29 00:56:15,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7899305555555556 [2023-11-29 00:56:15,797 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3640 transitions. [2023-11-29 00:56:15,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3640 transitions. [2023-11-29 00:56:15,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:56:15,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3640 transitions. [2023-11-29 00:56:15,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 227.5) internal successors, (3640), 16 states have internal predecessors, (3640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:15,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:15,804 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:15,804 INFO L175 Difference]: Start difference. First operand has 723 places, 1217 transitions, 45154 flow. Second operand 16 states and 3640 transitions. [2023-11-29 00:56:15,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 738 places, 1371 transitions, 50204 flow [2023-11-29 00:56:26,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 738 places, 1371 transitions, 49708 flow, removed 248 selfloop flow, removed 0 redundant places. [2023-11-29 00:56:26,754 INFO L231 Difference]: Finished difference. Result has 749 places, 1256 transitions, 48770 flow [2023-11-29 00:56:26,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=44748, PETRI_DIFFERENCE_MINUEND_PLACES=723, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=617, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=48770, PETRI_PLACES=749, PETRI_TRANSITIONS=1256} [2023-11-29 00:56:26,755 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 562 predicate places. [2023-11-29 00:56:26,755 INFO L495 AbstractCegarLoop]: Abstraction has has 749 places, 1256 transitions, 48770 flow [2023-11-29 00:56:26,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:26,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:56:26,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:56:26,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 00:56:26,756 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:56:26,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:56:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash 137403545, now seen corresponding path program 10 times [2023-11-29 00:56:26,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:56:26,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893101214] [2023-11-29 00:56:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:56:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:56:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:56:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:56:27,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:56:27,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893101214] [2023-11-29 00:56:27,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893101214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:56:27,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:56:27,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:56:27,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307693904] [2023-11-29 00:56:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:56:27,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:56:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:56:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:56:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:56:29,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:56:29,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 749 places, 1256 transitions, 48770 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:29,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:56:29,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:56:29,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:56:49,674 INFO L124 PetriNetUnfolderBase]: 10902/34915 cut-off events. [2023-11-29 00:56:49,674 INFO L125 PetriNetUnfolderBase]: For 1530511/1533015 co-relation queries the response was YES. [2023-11-29 00:56:50,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212648 conditions, 34915 events. 10902/34915 cut-off events. For 1530511/1533015 co-relation queries the response was YES. Maximal size of possible extension queue 1333. Compared 418947 event pairs, 2983 based on Foata normal form. 1201/31379 useless extension candidates. Maximal degree in co-relation 212217. Up to 11311 conditions per place. [2023-11-29 00:56:50,930 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 677 selfloop transitions, 674 changer transitions 0/1474 dead transitions. [2023-11-29 00:56:50,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 768 places, 1474 transitions, 55971 flow [2023-11-29 00:56:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:56:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:56:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4541 transitions. [2023-11-29 00:56:50,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7883680555555556 [2023-11-29 00:56:50,935 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4541 transitions. [2023-11-29 00:56:50,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4541 transitions. [2023-11-29 00:56:50,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:56:50,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4541 transitions. [2023-11-29 00:56:50,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 227.05) internal successors, (4541), 20 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:50,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:50,950 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:56:50,950 INFO L175 Difference]: Start difference. First operand has 749 places, 1256 transitions, 48770 flow. Second operand 20 states and 4541 transitions. [2023-11-29 00:56:50,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 768 places, 1474 transitions, 55971 flow [2023-11-29 00:57:02,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 766 places, 1474 transitions, 55651 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-11-29 00:57:02,118 INFO L231 Difference]: Finished difference. Result has 779 places, 1333 transitions, 54647 flow [2023-11-29 00:57:02,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=48472, PETRI_DIFFERENCE_MINUEND_PLACES=747, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=601, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=54647, PETRI_PLACES=779, PETRI_TRANSITIONS=1333} [2023-11-29 00:57:02,120 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 592 predicate places. [2023-11-29 00:57:02,120 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 1333 transitions, 54647 flow [2023-11-29 00:57:02,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:02,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:57:02,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:57:02,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 00:57:02,120 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:57:02,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:57:02,121 INFO L85 PathProgramCache]: Analyzing trace with hash -439281492, now seen corresponding path program 11 times [2023-11-29 00:57:02,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:57:02,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717391057] [2023-11-29 00:57:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:57:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:57:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:57:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:57:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:57:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717391057] [2023-11-29 00:57:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717391057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:57:02,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:57:02,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:57:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311952142] [2023-11-29 00:57:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:57:02,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:57:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:57:02,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:57:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:57:04,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:57:04,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 1333 transitions, 54647 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:04,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:57:04,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:57:04,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:57:25,985 INFO L124 PetriNetUnfolderBase]: 11229/35778 cut-off events. [2023-11-29 00:57:25,985 INFO L125 PetriNetUnfolderBase]: For 1744031/1746632 co-relation queries the response was YES. [2023-11-29 00:57:26,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227282 conditions, 35778 events. 11229/35778 cut-off events. For 1744031/1746632 co-relation queries the response was YES. Maximal size of possible extension queue 1369. Compared 430601 event pairs, 3054 based on Foata normal form. 1272/32190 useless extension candidates. Maximal degree in co-relation 226838. Up to 11378 conditions per place. [2023-11-29 00:57:27,143 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 667 selfloop transitions, 718 changer transitions 0/1508 dead transitions. [2023-11-29 00:57:27,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 798 places, 1508 transitions, 60193 flow [2023-11-29 00:57:27,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:57:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 00:57:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4529 transitions. [2023-11-29 00:57:27,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7862847222222222 [2023-11-29 00:57:27,146 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4529 transitions. [2023-11-29 00:57:27,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4529 transitions. [2023-11-29 00:57:27,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:57:27,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4529 transitions. [2023-11-29 00:57:27,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 226.45) internal successors, (4529), 20 states have internal predecessors, (4529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:27,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:27,153 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:27,153 INFO L175 Difference]: Start difference. First operand has 779 places, 1333 transitions, 54647 flow. Second operand 20 states and 4529 transitions. [2023-11-29 00:57:27,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 798 places, 1508 transitions, 60193 flow [2023-11-29 00:57:40,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 796 places, 1508 transitions, 59621 flow, removed 162 selfloop flow, removed 2 redundant places. [2023-11-29 00:57:40,938 INFO L231 Difference]: Finished difference. Result has 806 places, 1376 transitions, 58684 flow [2023-11-29 00:57:40,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=54087, PETRI_DIFFERENCE_MINUEND_PLACES=777, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=678, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=58684, PETRI_PLACES=806, PETRI_TRANSITIONS=1376} [2023-11-29 00:57:40,940 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 619 predicate places. [2023-11-29 00:57:40,940 INFO L495 AbstractCegarLoop]: Abstraction has has 806 places, 1376 transitions, 58684 flow [2023-11-29 00:57:40,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:40,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:57:40,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:57:40,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 00:57:40,941 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:57:40,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:57:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1232721314, now seen corresponding path program 12 times [2023-11-29 00:57:40,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:57:40,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45615855] [2023-11-29 00:57:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:57:40,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:57:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:57:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:57:41,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:57:41,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45615855] [2023-11-29 00:57:41,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45615855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:57:41,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:57:41,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:57:41,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398209118] [2023-11-29 00:57:41,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:57:41,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:57:41,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:57:41,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:57:41,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:57:43,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:57:43,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 806 places, 1376 transitions, 58684 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:57:43,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:57:43,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:57:43,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:58:04,869 INFO L124 PetriNetUnfolderBase]: 11248/35497 cut-off events. [2023-11-29 00:58:04,869 INFO L125 PetriNetUnfolderBase]: For 1816188/1819033 co-relation queries the response was YES. [2023-11-29 00:58:05,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234566 conditions, 35497 events. 11248/35497 cut-off events. For 1816188/1819033 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 423634 event pairs, 3274 based on Foata normal form. 1442/31920 useless extension candidates. Maximal degree in co-relation 234112. Up to 8641 conditions per place. [2023-11-29 00:58:06,263 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 869 selfloop transitions, 642 changer transitions 0/1634 dead transitions. [2023-11-29 00:58:06,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 831 places, 1634 transitions, 65943 flow [2023-11-29 00:58:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 00:58:06,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-29 00:58:06,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 5877 transitions. [2023-11-29 00:58:06,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7848557692307693 [2023-11-29 00:58:06,268 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 5877 transitions. [2023-11-29 00:58:06,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 5877 transitions. [2023-11-29 00:58:06,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:58:06,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 5877 transitions. [2023-11-29 00:58:06,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 226.03846153846155) internal successors, (5877), 26 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:06,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 288.0) internal successors, (7776), 27 states have internal predecessors, (7776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:06,282 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 288.0) internal successors, (7776), 27 states have internal predecessors, (7776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:06,282 INFO L175 Difference]: Start difference. First operand has 806 places, 1376 transitions, 58684 flow. Second operand 26 states and 5877 transitions. [2023-11-29 00:58:06,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 831 places, 1634 transitions, 65943 flow [2023-11-29 00:58:22,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 826 places, 1634 transitions, 65406 flow, removed 124 selfloop flow, removed 5 redundant places. [2023-11-29 00:58:22,876 INFO L231 Difference]: Finished difference. Result has 835 places, 1412 transitions, 61906 flow [2023-11-29 00:58:22,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=58153, PETRI_DIFFERENCE_MINUEND_PLACES=801, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=609, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=748, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=61906, PETRI_PLACES=835, PETRI_TRANSITIONS=1412} [2023-11-29 00:58:22,878 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 648 predicate places. [2023-11-29 00:58:22,878 INFO L495 AbstractCegarLoop]: Abstraction has has 835 places, 1412 transitions, 61906 flow [2023-11-29 00:58:22,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:22,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:58:22,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:58:22,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 00:58:22,879 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:58:22,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:58:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2053837442, now seen corresponding path program 13 times [2023-11-29 00:58:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:58:22,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747437411] [2023-11-29 00:58:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:58:22,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:58:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:58:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:58:23,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:23,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747437411] [2023-11-29 00:58:23,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747437411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:58:23,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:58:23,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:58:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536229313] [2023-11-29 00:58:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:58:23,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:58:23,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:23,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:58:23,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:58:25,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:58:25,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 835 places, 1412 transitions, 61906 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:25,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:58:25,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:58:25,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:58:49,141 INFO L124 PetriNetUnfolderBase]: 12135/38873 cut-off events. [2023-11-29 00:58:49,141 INFO L125 PetriNetUnfolderBase]: For 2161993/2164780 co-relation queries the response was YES. [2023-11-29 00:58:50,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259426 conditions, 38873 events. 12135/38873 cut-off events. For 2161993/2164780 co-relation queries the response was YES. Maximal size of possible extension queue 1481. Compared 474384 event pairs, 3312 based on Foata normal form. 1320/34901 useless extension candidates. Maximal degree in co-relation 258844. Up to 11617 conditions per place. [2023-11-29 00:58:50,553 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 774 selfloop transitions, 749 changer transitions 0/1646 dead transitions. [2023-11-29 00:58:50,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 1646 transitions, 70310 flow [2023-11-29 00:58:50,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:58:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 00:58:50,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5205 transitions. [2023-11-29 00:58:50,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7857789855072463 [2023-11-29 00:58:50,556 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5205 transitions. [2023-11-29 00:58:50,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5205 transitions. [2023-11-29 00:58:50,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:58:50,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5205 transitions. [2023-11-29 00:58:50,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 226.30434782608697) internal successors, (5205), 23 states have internal predecessors, (5205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,564 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,564 INFO L175 Difference]: Start difference. First operand has 835 places, 1412 transitions, 61906 flow. Second operand 23 states and 5205 transitions. [2023-11-29 00:58:50,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 857 places, 1646 transitions, 70310 flow [2023-11-29 00:59:08,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 848 places, 1646 transitions, 69798 flow, removed 164 selfloop flow, removed 9 redundant places. [2023-11-29 00:59:08,846 INFO L231 Difference]: Finished difference. Result has 864 places, 1481 transitions, 67597 flow [2023-11-29 00:59:08,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=61470, PETRI_DIFFERENCE_MINUEND_PLACES=826, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=688, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=67597, PETRI_PLACES=864, PETRI_TRANSITIONS=1481} [2023-11-29 00:59:08,848 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 677 predicate places. [2023-11-29 00:59:08,848 INFO L495 AbstractCegarLoop]: Abstraction has has 864 places, 1481 transitions, 67597 flow [2023-11-29 00:59:08,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:08,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:08,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:08,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 00:59:08,849 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:59:08,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1882520344, now seen corresponding path program 14 times [2023-11-29 00:59:08,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:08,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876262930] [2023-11-29 00:59:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:08,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:59:09,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:09,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876262930] [2023-11-29 00:59:09,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876262930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:09,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:09,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:59:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617600420] [2023-11-29 00:59:09,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:09,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:59:09,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:09,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:59:09,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:59:11,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 00:59:11,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 1481 transitions, 67597 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:11,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:11,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 00:59:11,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:36,363 INFO L124 PetriNetUnfolderBase]: 12408/39720 cut-off events. [2023-11-29 00:59:36,364 INFO L125 PetriNetUnfolderBase]: For 2421340/2424364 co-relation queries the response was YES. [2023-11-29 00:59:37,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274292 conditions, 39720 events. 12408/39720 cut-off events. For 2421340/2424364 co-relation queries the response was YES. Maximal size of possible extension queue 1523. Compared 487463 event pairs, 3313 based on Foata normal form. 1534/35846 useless extension candidates. Maximal degree in co-relation 273913. Up to 13284 conditions per place. [2023-11-29 00:59:37,915 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 706 selfloop transitions, 794 changer transitions 0/1623 dead transitions. [2023-11-29 00:59:37,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 879 places, 1623 transitions, 73520 flow [2023-11-29 00:59:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:59:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 00:59:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3638 transitions. [2023-11-29 00:59:37,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7894965277777778 [2023-11-29 00:59:37,920 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3638 transitions. [2023-11-29 00:59:37,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3638 transitions. [2023-11-29 00:59:37,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:37,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3638 transitions. [2023-11-29 00:59:37,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 227.375) internal successors, (3638), 16 states have internal predecessors, (3638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:37,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:37,930 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 288.0) internal successors, (4896), 17 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:37,930 INFO L175 Difference]: Start difference. First operand has 864 places, 1481 transitions, 67597 flow. Second operand 16 states and 3638 transitions. [2023-11-29 00:59:37,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 879 places, 1623 transitions, 73520 flow [2023-11-29 00:59:59,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 877 places, 1623 transitions, 72754 flow, removed 252 selfloop flow, removed 2 redundant places. [2023-11-29 00:59:59,103 INFO L231 Difference]: Finished difference. Result has 888 places, 1520 transitions, 71888 flow [2023-11-29 00:59:59,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=66897, PETRI_DIFFERENCE_MINUEND_PLACES=862, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=759, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=71888, PETRI_PLACES=888, PETRI_TRANSITIONS=1520} [2023-11-29 00:59:59,105 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 701 predicate places. [2023-11-29 00:59:59,105 INFO L495 AbstractCegarLoop]: Abstraction has has 888 places, 1520 transitions, 71888 flow [2023-11-29 00:59:59,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:59,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:59,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:59,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 00:59:59,106 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:59:59,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:59,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1161445842, now seen corresponding path program 15 times [2023-11-29 00:59:59,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:59,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158539597] [2023-11-29 00:59:59,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:59,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:59:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158539597] [2023-11-29 00:59:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158539597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:59,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:59,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:59:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624171732] [2023-11-29 00:59:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:59,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:59:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:59:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:00:02,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 01:00:02,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 888 places, 1520 transitions, 71888 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:00:02,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:00:02,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 01:00:02,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:00:28,326 INFO L124 PetriNetUnfolderBase]: 12426/39995 cut-off events. [2023-11-29 01:00:28,326 INFO L125 PetriNetUnfolderBase]: For 2565101/2568122 co-relation queries the response was YES. [2023-11-29 01:00:29,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282677 conditions, 39995 events. 12426/39995 cut-off events. For 2565101/2568122 co-relation queries the response was YES. Maximal size of possible extension queue 1532. Compared 491979 event pairs, 3312 based on Foata normal form. 1532/36083 useless extension candidates. Maximal degree in co-relation 282287. Up to 12881 conditions per place. [2023-11-29 01:00:29,944 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 752 selfloop transitions, 806 changer transitions 0/1681 dead transitions. [2023-11-29 01:00:29,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 907 places, 1681 transitions, 77855 flow [2023-11-29 01:00:29,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:00:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:00:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4527 transitions. [2023-11-29 01:00:29,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7859375 [2023-11-29 01:00:29,948 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4527 transitions. [2023-11-29 01:00:29,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4527 transitions. [2023-11-29 01:00:29,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:00:29,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4527 transitions. [2023-11-29 01:00:29,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 226.35) internal successors, (4527), 20 states have internal predecessors, (4527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:00:29,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:00:29,959 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 288.0) internal successors, (6048), 21 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:00:29,959 INFO L175 Difference]: Start difference. First operand has 888 places, 1520 transitions, 71888 flow. Second operand 20 states and 4527 transitions. [2023-11-29 01:00:29,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 907 places, 1681 transitions, 77855 flow [2023-11-29 01:00:51,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 905 places, 1681 transitions, 77435 flow, removed 79 selfloop flow, removed 2 redundant places. [2023-11-29 01:00:51,386 INFO L231 Difference]: Finished difference. Result has 914 places, 1559 transitions, 76355 flow [2023-11-29 01:00:51,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=71514, PETRI_DIFFERENCE_MINUEND_PLACES=886, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=770, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=720, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=76355, PETRI_PLACES=914, PETRI_TRANSITIONS=1559} [2023-11-29 01:00:51,388 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 727 predicate places. [2023-11-29 01:00:51,388 INFO L495 AbstractCegarLoop]: Abstraction has has 914 places, 1559 transitions, 76355 flow [2023-11-29 01:00:51,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:00:51,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:00:51,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:00:51,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 01:00:51,388 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 01:00:51,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:00:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1878125702, now seen corresponding path program 16 times [2023-11-29 01:00:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:00:51,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031839787] [2023-11-29 01:00:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:00:51,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:00:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:00:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:00:51,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:00:51,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031839787] [2023-11-29 01:00:51,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031839787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:00:51,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:00:51,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:00:51,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587217183] [2023-11-29 01:00:51,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:00:51,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:00:51,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:00:51,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:00:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:00:53,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 01:00:53,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 914 places, 1559 transitions, 76355 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:00:53,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:00:53,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 01:00:53,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:22,671 INFO L124 PetriNetUnfolderBase]: 12803/40880 cut-off events. [2023-11-29 01:01:22,671 INFO L125 PetriNetUnfolderBase]: For 2871855/2875181 co-relation queries the response was YES. [2023-11-29 01:01:24,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300583 conditions, 40880 events. 12803/40880 cut-off events. For 2871855/2875181 co-relation queries the response was YES. Maximal size of possible extension queue 1561. Compared 502721 event pairs, 3402 based on Foata normal form. 1706/36985 useless extension candidates. Maximal degree in co-relation 300183. Up to 12116 conditions per place. [2023-11-29 01:01:24,572 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 771 selfloop transitions, 878 changer transitions 0/1772 dead transitions. [2023-11-29 01:01:24,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 1772 transitions, 84768 flow [2023-11-29 01:01:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:01:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:01:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5191 transitions. [2023-11-29 01:01:24,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7836654589371981 [2023-11-29 01:01:24,577 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5191 transitions. [2023-11-29 01:01:24,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5191 transitions. [2023-11-29 01:01:24,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:24,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5191 transitions. [2023-11-29 01:01:24,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 225.69565217391303) internal successors, (5191), 23 states have internal predecessors, (5191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:24,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:24,588 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 288.0) internal successors, (6912), 24 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:24,588 INFO L175 Difference]: Start difference. First operand has 914 places, 1559 transitions, 76355 flow. Second operand 23 states and 5191 transitions. [2023-11-29 01:01:24,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 1772 transitions, 84768 flow [2023-11-29 01:01:51,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 1772 transitions, 84234 flow, removed 128 selfloop flow, removed 4 redundant places. [2023-11-29 01:01:51,277 INFO L231 Difference]: Finished difference. Result has 948 places, 1616 transitions, 82111 flow [2023-11-29 01:01:51,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=75827, PETRI_DIFFERENCE_MINUEND_PLACES=910, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=823, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=692, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=82111, PETRI_PLACES=948, PETRI_TRANSITIONS=1616} [2023-11-29 01:01:51,279 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 761 predicate places. [2023-11-29 01:01:51,279 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 1616 transitions, 82111 flow [2023-11-29 01:01:51,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:51,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:51,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:51,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 01:01:51,280 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 01:01:51,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash -738150382, now seen corresponding path program 17 times [2023-11-29 01:01:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:51,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932029531] [2023-11-29 01:01:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:51,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:51,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:51,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932029531] [2023-11-29 01:01:51,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932029531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:51,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:51,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:01:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323129455] [2023-11-29 01:01:51,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:51,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:01:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:51,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:01:51,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:01:53,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 288 [2023-11-29 01:01:53,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 1616 transitions, 82111 flow. Second operand has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:53,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:53,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 288 [2023-11-29 01:01:53,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:22,836 INFO L124 PetriNetUnfolderBase]: 12829/41365 cut-off events. [2023-11-29 01:02:22,836 INFO L125 PetriNetUnfolderBase]: For 3043125/3046355 co-relation queries the response was YES. [2023-11-29 01:02:24,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310495 conditions, 41365 events. 12829/41365 cut-off events. For 3043125/3046355 co-relation queries the response was YES. Maximal size of possible extension queue 1576. Compared 511370 event pairs, 3455 based on Foata normal form. 1677/37367 useless extension candidates. Maximal degree in co-relation 310079. Up to 12692 conditions per place. [2023-11-29 01:02:24,829 INFO L140 encePairwiseOnDemand]: 270/288 looper letters, 748 selfloop transitions, 895 changer transitions 0/1766 dead transitions. [2023-11-29 01:02:24,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 1766 transitions, 88439 flow [2023-11-29 01:02:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:02:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 01:02:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4076 transitions. [2023-11-29 01:02:24,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7862654320987654 [2023-11-29 01:02:24,832 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4076 transitions. [2023-11-29 01:02:24,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4076 transitions. [2023-11-29 01:02:24,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:24,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4076 transitions. [2023-11-29 01:02:24,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 226.44444444444446) internal successors, (4076), 18 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:24,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:24,839 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 288.0) internal successors, (5472), 19 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:24,839 INFO L175 Difference]: Start difference. First operand has 948 places, 1616 transitions, 82111 flow. Second operand 18 states and 4076 transitions. [2023-11-29 01:02:24,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 965 places, 1766 transitions, 88439 flow [2023-11-29 01:02:49,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 1766 transitions, 87645 flow, removed 257 selfloop flow, removed 10 redundant places. [2023-11-29 01:02:49,139 INFO L231 Difference]: Finished difference. Result has 966 places, 1654 transitions, 87025 flow [2023-11-29 01:02:49,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=81355, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=860, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=87025, PETRI_PLACES=966, PETRI_TRANSITIONS=1654} [2023-11-29 01:02:49,141 INFO L281 CegarLoopForPetriNet]: 187 programPoint places, 779 predicate places. [2023-11-29 01:02:49,141 INFO L495 AbstractCegarLoop]: Abstraction has has 966 places, 1654 transitions, 87025 flow [2023-11-29 01:02:49,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.5) internal successors, (2598), 12 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:49,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:49,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:49,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 01:02:49,142 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 01:02:49,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash -73938231, now seen corresponding path program 1 times [2023-11-29 01:02:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:49,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392178006] [2023-11-29 01:02:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:49,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:49,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:49,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392178006] [2023-11-29 01:02:49,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392178006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:49,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:49,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:49,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147604978] [2023-11-29 01:02:49,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:49,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:02:49,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:49,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:02:49,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:02:49,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 288 [2023-11-29 01:02:49,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 966 places, 1654 transitions, 87025 flow. Second operand has 6 states, 6 states have (on average 236.16666666666666) internal successors, (1417), 6 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:49,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:49,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 288 [2023-11-29 01:02:49,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand