./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB --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 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:15:22,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:15:23,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 23:15:23,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:15:23,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:15:23,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:15:23,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:15:23,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:15:23,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:15:23,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:15:23,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:15:23,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:15:23,054 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:15:23,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:15:23,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:15:23,055 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 23:15:23,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:15:23,056 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:15:23,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:15:23,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:15:23,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:15:23,056 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:15:23,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:23,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:23,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:23,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:15:23,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:23,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:23,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:23,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:15:23,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:15:23,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:15:23,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:15:23,059 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2024-11-27 23:15:23,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:15:23,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:15:23,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:15:23,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:15:23,427 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:15:23,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-11-27 23:15:26,600 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/data/f2d6c9228/7a4936ec0f494bd29717dc3efccbce55/FLAG190b05b00 [2024-11-27 23:15:26,974 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:15:26,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-11-27 23:15:26,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/data/f2d6c9228/7a4936ec0f494bd29717dc3efccbce55/FLAG190b05b00 [2024-11-27 23:15:27,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/data/f2d6c9228/7a4936ec0f494bd29717dc3efccbce55 [2024-11-27 23:15:27,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:15:27,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:15:27,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:27,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:15:27,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:15:27,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674a51d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27, skipping insertion in model container [2024-11-27 23:15:27,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:15:27,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:27,520 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:15:27,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:27,631 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:15:27,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27 WrapperNode [2024-11-27 23:15:27,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:27,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:27,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:15:27,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:15:27,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,696 INFO L138 Inliner]: procedures = 224, calls = 44, calls flagged for inlining = 16, calls inlined = 10, statements flattened = 194 [2024-11-27 23:15:27,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:27,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:15:27,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:15:27,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:15:27,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,756 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:15:27,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:15:27,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:15:27,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:15:27,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (1/1) ... [2024-11-27 23:15:27,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:27,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:27,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:15:27,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a8ee8a-fdb4-4694-b707-1dba004215b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:15:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2024-11-27 23:15:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2024-11-27 23:15:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:15:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:15:27,871 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:15:28,025 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:15:28,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:15:28,608 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:15:28,608 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:15:28,627 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:15:28,630 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 23:15:28,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:28 BoogieIcfgContainer [2024-11-27 23:15:28,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:15:28,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:15:28,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:15:28,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:15:28,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:15:27" (1/3) ... [2024-11-27 23:15:28,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3921272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:28, skipping insertion in model container [2024-11-27 23:15:28,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:27" (2/3) ... [2024-11-27 23:15:28,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3921272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:28, skipping insertion in model container [2024-11-27 23:15:28,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:28" (3/3) ... [2024-11-27 23:15:28,645 INFO L128 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2024-11-27 23:15:28,664 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:15:28,669 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ring_1w1r-1.i that has 2 procedures, 226 locations, 1 initial locations, 3 loop locations, and 14 error locations. [2024-11-27 23:15:28,670 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:15:28,831 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 23:15:28,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 237 transitions, 481 flow [2024-11-27 23:15:29,040 INFO L124 PetriNetUnfolderBase]: 12/236 cut-off events. [2024-11-27 23:15:29,042 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:29,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 236 events. 12/236 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 526 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2024-11-27 23:15:29,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 237 transitions, 481 flow [2024-11-27 23:15:29,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 230 transitions, 463 flow [2024-11-27 23:15:29,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:15:29,101 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e4eb0f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:15:29,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-27 23:15:29,118 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:15:29,118 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-27 23:15:29,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:15:29,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:29,121 INFO L206 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] [2024-11-27 23:15:29,121 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:29,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2077722666, now seen corresponding path program 1 times [2024-11-27 23:15:29,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:29,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604453297] [2024-11-27 23:15:29,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:29,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:30,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:30,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604453297] [2024-11-27 23:15:30,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604453297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:30,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:30,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:30,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077765263] [2024-11-27 23:15:30,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:30,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:30,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:30,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:30,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:30,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 237 [2024-11-27 23:15:30,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 230 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:30,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:30,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 237 [2024-11-27 23:15:30,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:31,617 INFO L124 PetriNetUnfolderBase]: 675/3079 cut-off events. [2024-11-27 23:15:31,618 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:31,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4374 conditions, 3079 events. 675/3079 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24288 event pairs, 576 based on Foata normal form. 296/3069 useless extension candidates. Maximal degree in co-relation 4315. Up to 1286 conditions per place. [2024-11-27 23:15:31,646 INFO L140 encePairwiseOnDemand]: 222/237 looper letters, 54 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-11-27 23:15:31,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 217 transitions, 555 flow [2024-11-27 23:15:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1071 transitions. [2024-11-27 23:15:31,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7531645569620253 [2024-11-27 23:15:31,678 INFO L175 Difference]: Start difference. First operand has 222 places, 230 transitions, 463 flow. Second operand 6 states and 1071 transitions. [2024-11-27 23:15:31,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 217 transitions, 555 flow [2024-11-27 23:15:31,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 217 transitions, 554 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:15:31,697 INFO L231 Difference]: Finished difference. Result has 222 places, 217 transitions, 446 flow [2024-11-27 23:15:31,700 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=222, PETRI_TRANSITIONS=217} [2024-11-27 23:15:31,706 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 0 predicate places. [2024-11-27 23:15:31,706 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 217 transitions, 446 flow [2024-11-27 23:15:31,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:31,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:31,709 INFO L206 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] [2024-11-27 23:15:31,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:15:31,710 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:31,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:31,712 INFO L85 PathProgramCache]: Analyzing trace with hash 724820017, now seen corresponding path program 1 times [2024-11-27 23:15:31,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599393194] [2024-11-27 23:15:31,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:31,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:32,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:32,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599393194] [2024-11-27 23:15:32,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599393194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:32,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:32,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:32,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749096137] [2024-11-27 23:15:32,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:32,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:32,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:32,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:32,768 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 237 [2024-11-27 23:15:32,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 217 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:32,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:32,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 237 [2024-11-27 23:15:32,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:33,395 INFO L124 PetriNetUnfolderBase]: 675/3078 cut-off events. [2024-11-27 23:15:33,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:15:33,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4378 conditions, 3078 events. 675/3078 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24302 event pairs, 576 based on Foata normal form. 0/2773 useless extension candidates. Maximal degree in co-relation 4327. Up to 1286 conditions per place. [2024-11-27 23:15:33,415 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 54 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2024-11-27 23:15:33,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 216 transitions, 562 flow [2024-11-27 23:15:33,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1062 transitions. [2024-11-27 23:15:33,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7468354430379747 [2024-11-27 23:15:33,418 INFO L175 Difference]: Start difference. First operand has 222 places, 217 transitions, 446 flow. Second operand 6 states and 1062 transitions. [2024-11-27 23:15:33,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 216 transitions, 562 flow [2024-11-27 23:15:33,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 216 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 23:15:33,430 INFO L231 Difference]: Finished difference. Result has 221 places, 216 transitions, 444 flow [2024-11-27 23:15:33,430 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=221, PETRI_TRANSITIONS=216} [2024-11-27 23:15:33,431 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, -1 predicate places. [2024-11-27 23:15:33,431 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 216 transitions, 444 flow [2024-11-27 23:15:33,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:33,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:33,432 INFO L206 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] [2024-11-27 23:15:33,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:15:33,433 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:33,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash 8043261, now seen corresponding path program 1 times [2024-11-27 23:15:33,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:33,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546753262] [2024-11-27 23:15:33,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:33,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:34,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:34,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546753262] [2024-11-27 23:15:34,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546753262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:34,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:34,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:34,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250848338] [2024-11-27 23:15:34,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:34,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:34,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:34,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:34,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:34,736 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 237 [2024-11-27 23:15:34,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 216 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:34,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:34,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 237 [2024-11-27 23:15:34,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:35,314 INFO L124 PetriNetUnfolderBase]: 311/2118 cut-off events. [2024-11-27 23:15:35,315 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:35,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 2118 events. 311/2118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14669 event pairs, 64 based on Foata normal form. 0/1898 useless extension candidates. Maximal degree in co-relation 2665. Up to 452 conditions per place. [2024-11-27 23:15:35,328 INFO L140 encePairwiseOnDemand]: 216/237 looper letters, 39 selfloop transitions, 43 changer transitions 0/261 dead transitions. [2024-11-27 23:15:35,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 261 transitions, 698 flow [2024-11-27 23:15:35,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:35,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2024-11-27 23:15:35,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8607594936708861 [2024-11-27 23:15:35,332 INFO L175 Difference]: Start difference. First operand has 221 places, 216 transitions, 444 flow. Second operand 6 states and 1224 transitions. [2024-11-27 23:15:35,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 261 transitions, 698 flow [2024-11-27 23:15:35,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 261 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 23:15:35,345 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 730 flow [2024-11-27 23:15:35,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2024-11-27 23:15:35,346 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 4 predicate places. [2024-11-27 23:15:35,346 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 730 flow [2024-11-27 23:15:35,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:35,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:35,348 INFO L206 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] [2024-11-27 23:15:35,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:15:35,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:35,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:35,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1261280793, now seen corresponding path program 1 times [2024-11-27 23:15:35,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:35,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137998316] [2024-11-27 23:15:35,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:35,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:35,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:15:35,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:35,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137998316] [2024-11-27 23:15:35,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137998316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:35,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:35,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:15:35,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392779968] [2024-11-27 23:15:35,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:35,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:15:35,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:35,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:35,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:35,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2024-11-27 23:15:35,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:35,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:35,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2024-11-27 23:15:35,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:35,890 INFO L124 PetriNetUnfolderBase]: 323/2409 cut-off events. [2024-11-27 23:15:35,891 INFO L125 PetriNetUnfolderBase]: For 220/232 co-relation queries the response was YES. [2024-11-27 23:15:35,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 2409 events. 323/2409 cut-off events. For 220/232 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16827 event pairs, 16 based on Foata normal form. 1/2212 useless extension candidates. Maximal degree in co-relation 3490. Up to 340 conditions per place. [2024-11-27 23:15:35,908 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 3 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-11-27 23:15:35,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 259 transitions, 742 flow [2024-11-27 23:15:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:35,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:15:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-11-27 23:15:35,911 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9493670886075949 [2024-11-27 23:15:35,912 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 730 flow. Second operand 3 states and 675 transitions. [2024-11-27 23:15:35,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 259 transitions, 742 flow [2024-11-27 23:15:35,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 259 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:35,924 INFO L231 Difference]: Finished difference. Result has 229 places, 259 transitions, 742 flow [2024-11-27 23:15:35,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=229, PETRI_TRANSITIONS=259} [2024-11-27 23:15:35,927 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 7 predicate places. [2024-11-27 23:15:35,927 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 259 transitions, 742 flow [2024-11-27 23:15:35,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:35,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:35,928 INFO L206 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] [2024-11-27 23:15:35,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:15:35,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:35,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:35,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1855600972, now seen corresponding path program 1 times [2024-11-27 23:15:35,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:35,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686612055] [2024-11-27 23:15:35,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:35,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:15:36,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:36,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686612055] [2024-11-27 23:15:36,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686612055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:36,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:36,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:36,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6811402] [2024-11-27 23:15:36,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:36,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:36,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:36,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:36,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:37,192 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 237 [2024-11-27 23:15:37,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 259 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:37,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:37,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 237 [2024-11-27 23:15:37,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:38,225 INFO L124 PetriNetUnfolderBase]: 788/5007 cut-off events. [2024-11-27 23:15:38,225 INFO L125 PetriNetUnfolderBase]: For 1012/1184 co-relation queries the response was YES. [2024-11-27 23:15:38,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8268 conditions, 5007 events. 788/5007 cut-off events. For 1012/1184 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 43647 event pairs, 132 based on Foata normal form. 68/4742 useless extension candidates. Maximal degree in co-relation 8206. Up to 1059 conditions per place. [2024-11-27 23:15:38,260 INFO L140 encePairwiseOnDemand]: 213/237 looper letters, 81 selfloop transitions, 45 changer transitions 0/309 dead transitions. [2024-11-27 23:15:38,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 309 transitions, 1154 flow [2024-11-27 23:15:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2024-11-27 23:15:38,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8354430379746836 [2024-11-27 23:15:38,265 INFO L175 Difference]: Start difference. First operand has 229 places, 259 transitions, 742 flow. Second operand 6 states and 1188 transitions. [2024-11-27 23:15:38,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 309 transitions, 1154 flow [2024-11-27 23:15:38,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 309 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:15:38,280 INFO L231 Difference]: Finished difference. Result has 238 places, 303 transitions, 1132 flow [2024-11-27 23:15:38,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=238, PETRI_TRANSITIONS=303} [2024-11-27 23:15:38,284 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 16 predicate places. [2024-11-27 23:15:38,284 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 303 transitions, 1132 flow [2024-11-27 23:15:38,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:38,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:38,285 INFO L206 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] [2024-11-27 23:15:38,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:15:38,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:38,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -396343004, now seen corresponding path program 1 times [2024-11-27 23:15:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48096661] [2024-11-27 23:15:38,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:38,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:15:38,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:38,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48096661] [2024-11-27 23:15:38,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48096661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:38,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:38,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:38,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799804476] [2024-11-27 23:15:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:38,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:38,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:38,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:39,765 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 237 [2024-11-27 23:15:39,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 303 transitions, 1132 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:39,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:39,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 237 [2024-11-27 23:15:39,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:41,152 INFO L124 PetriNetUnfolderBase]: 1078/6621 cut-off events. [2024-11-27 23:15:41,153 INFO L125 PetriNetUnfolderBase]: For 5110/5999 co-relation queries the response was YES. [2024-11-27 23:15:41,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12831 conditions, 6621 events. 1078/6621 cut-off events. For 5110/5999 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 61536 event pairs, 156 based on Foata normal form. 167/6369 useless extension candidates. Maximal degree in co-relation 12765. Up to 1417 conditions per place. [2024-11-27 23:15:41,201 INFO L140 encePairwiseOnDemand]: 222/237 looper letters, 94 selfloop transitions, 78 changer transitions 0/380 dead transitions. [2024-11-27 23:15:41,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 380 transitions, 1934 flow [2024-11-27 23:15:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2024-11-27 23:15:41,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8720112517580872 [2024-11-27 23:15:41,205 INFO L175 Difference]: Start difference. First operand has 238 places, 303 transitions, 1132 flow. Second operand 6 states and 1240 transitions. [2024-11-27 23:15:41,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 380 transitions, 1934 flow [2024-11-27 23:15:41,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 380 transitions, 1934 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:41,235 INFO L231 Difference]: Finished difference. Result has 248 places, 380 transitions, 1950 flow [2024-11-27 23:15:41,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1950, PETRI_PLACES=248, PETRI_TRANSITIONS=380} [2024-11-27 23:15:41,236 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 26 predicate places. [2024-11-27 23:15:41,237 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 380 transitions, 1950 flow [2024-11-27 23:15:41,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:41,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:41,238 INFO L206 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] [2024-11-27 23:15:41,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:15:41,238 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:41,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:41,240 INFO L85 PathProgramCache]: Analyzing trace with hash -596411090, now seen corresponding path program 1 times [2024-11-27 23:15:41,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:41,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765330767] [2024-11-27 23:15:41,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:41,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:15:41,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765330767] [2024-11-27 23:15:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765330767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:41,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:41,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:41,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912310477] [2024-11-27 23:15:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:41,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:41,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:41,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:41,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:42,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2024-11-27 23:15:42,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 380 transitions, 1950 flow. Second operand has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:42,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:42,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2024-11-27 23:15:42,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:43,992 INFO L124 PetriNetUnfolderBase]: 1208/7265 cut-off events. [2024-11-27 23:15:43,993 INFO L125 PetriNetUnfolderBase]: For 6208/6776 co-relation queries the response was YES. [2024-11-27 23:15:44,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15035 conditions, 7265 events. 1208/7265 cut-off events. For 6208/6776 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 69182 event pairs, 107 based on Foata normal form. 192/7075 useless extension candidates. Maximal degree in co-relation 14964. Up to 1086 conditions per place. [2024-11-27 23:15:44,042 INFO L140 encePairwiseOnDemand]: 226/237 looper letters, 103 selfloop transitions, 66 changer transitions 0/445 dead transitions. [2024-11-27 23:15:44,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 445 transitions, 2720 flow [2024-11-27 23:15:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1258 transitions. [2024-11-27 23:15:44,046 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8846694796061885 [2024-11-27 23:15:44,046 INFO L175 Difference]: Start difference. First operand has 248 places, 380 transitions, 1950 flow. Second operand 6 states and 1258 transitions. [2024-11-27 23:15:44,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 445 transitions, 2720 flow [2024-11-27 23:15:44,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 445 transitions, 2720 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:44,075 INFO L231 Difference]: Finished difference. Result has 258 places, 442 transitions, 2712 flow [2024-11-27 23:15:44,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1950, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2712, PETRI_PLACES=258, PETRI_TRANSITIONS=442} [2024-11-27 23:15:44,078 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 36 predicate places. [2024-11-27 23:15:44,078 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 442 transitions, 2712 flow [2024-11-27 23:15:44,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:44,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:44,079 INFO L206 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, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:44,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:15:44,079 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:44,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:44,082 INFO L85 PathProgramCache]: Analyzing trace with hash -763883339, now seen corresponding path program 1 times [2024-11-27 23:15:44,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:44,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806157862] [2024-11-27 23:15:44,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:44,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:15:44,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:44,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806157862] [2024-11-27 23:15:44,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806157862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:44,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:44,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:44,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115440026] [2024-11-27 23:15:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:44,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:44,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:44,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:44,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:45,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-11-27 23:15:45,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 442 transitions, 2712 flow. Second operand has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:45,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:45,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-11-27 23:15:45,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:48,125 INFO L124 PetriNetUnfolderBase]: 5261/16665 cut-off events. [2024-11-27 23:15:48,125 INFO L125 PetriNetUnfolderBase]: For 19143/19443 co-relation queries the response was YES. [2024-11-27 23:15:48,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44613 conditions, 16665 events. 5261/16665 cut-off events. For 19143/19443 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 158637 event pairs, 2287 based on Foata normal form. 50/15799 useless extension candidates. Maximal degree in co-relation 44537. Up to 9666 conditions per place. [2024-11-27 23:15:48,210 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 260 selfloop transitions, 156 changer transitions 0/573 dead transitions. [2024-11-27 23:15:48,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 573 transitions, 4280 flow [2024-11-27 23:15:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:48,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2024-11-27 23:15:48,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7974683544303798 [2024-11-27 23:15:48,214 INFO L175 Difference]: Start difference. First operand has 258 places, 442 transitions, 2712 flow. Second operand 6 states and 1134 transitions. [2024-11-27 23:15:48,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 573 transitions, 4280 flow [2024-11-27 23:15:48,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 573 transitions, 4280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:48,312 INFO L231 Difference]: Finished difference. Result has 268 places, 573 transitions, 4180 flow [2024-11-27 23:15:48,315 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2712, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4180, PETRI_PLACES=268, PETRI_TRANSITIONS=573} [2024-11-27 23:15:48,316 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 46 predicate places. [2024-11-27 23:15:48,316 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 573 transitions, 4180 flow [2024-11-27 23:15:48,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:48,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:48,317 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:48,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:15:48,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:48,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:48,320 INFO L85 PathProgramCache]: Analyzing trace with hash -412411358, now seen corresponding path program 1 times [2024-11-27 23:15:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:48,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978939872] [2024-11-27 23:15:48,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:48,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:48,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:15:48,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:48,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978939872] [2024-11-27 23:15:48,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978939872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:48,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:48,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516025092] [2024-11-27 23:15:48,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:48,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:48,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:48,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:48,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:49,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-11-27 23:15:49,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 573 transitions, 4180 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:49,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:49,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-11-27 23:15:49,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:53,549 INFO L124 PetriNetUnfolderBase]: 5567/17507 cut-off events. [2024-11-27 23:15:53,550 INFO L125 PetriNetUnfolderBase]: For 29328/29582 co-relation queries the response was YES. [2024-11-27 23:15:53,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52930 conditions, 17507 events. 5567/17507 cut-off events. For 29328/29582 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 167630 event pairs, 2232 based on Foata normal form. 12/16658 useless extension candidates. Maximal degree in co-relation 52849. Up to 9984 conditions per place. [2024-11-27 23:15:53,652 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 372 selfloop transitions, 167 changer transitions 0/700 dead transitions. [2024-11-27 23:15:53,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 700 transitions, 5924 flow [2024-11-27 23:15:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2024-11-27 23:15:53,656 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7974683544303798 [2024-11-27 23:15:53,656 INFO L175 Difference]: Start difference. First operand has 268 places, 573 transitions, 4180 flow. Second operand 6 states and 1134 transitions. [2024-11-27 23:15:53,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 700 transitions, 5924 flow [2024-11-27 23:15:53,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 700 transitions, 5692 flow, removed 116 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:53,798 INFO L231 Difference]: Finished difference. Result has 278 places, 700 transitions, 5388 flow [2024-11-27 23:15:53,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=3960, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5388, PETRI_PLACES=278, PETRI_TRANSITIONS=700} [2024-11-27 23:15:53,800 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 56 predicate places. [2024-11-27 23:15:53,800 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 700 transitions, 5388 flow [2024-11-27 23:15:53,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,801 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:53,801 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:53,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:15:53,801 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:15:53,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1556333307, now seen corresponding path program 1 times [2024-11-27 23:15:53,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:53,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986799797] [2024-11-27 23:15:53,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:15:57,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:57,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986799797] [2024-11-27 23:15:57,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986799797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:57,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:57,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-27 23:15:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864252120] [2024-11-27 23:15:57,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:57,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:15:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:57,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:15:57,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:16:04,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-11-27 23:16:04,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 700 transitions, 5388 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:16:04,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:04,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-11-27 23:16:04,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:11,846 INFO L124 PetriNetUnfolderBase]: 6290/25453 cut-off events. [2024-11-27 23:16:11,846 INFO L125 PetriNetUnfolderBase]: For 53337/54859 co-relation queries the response was YES. [2024-11-27 23:16:11,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75318 conditions, 25453 events. 6290/25453 cut-off events. For 53337/54859 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 288793 event pairs, 825 based on Foata normal form. 329/24745 useless extension candidates. Maximal degree in co-relation 75224. Up to 7429 conditions per place. [2024-11-27 23:16:11,992 INFO L140 encePairwiseOnDemand]: 198/237 looper letters, 976 selfloop transitions, 193 changer transitions 0/1447 dead transitions. [2024-11-27 23:16:11,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 1447 transitions, 13948 flow [2024-11-27 23:16:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 23:16:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-27 23:16:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5762 transitions. [2024-11-27 23:16:12,007 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6946353224834237 [2024-11-27 23:16:12,008 INFO L175 Difference]: Start difference. First operand has 278 places, 700 transitions, 5388 flow. Second operand 35 states and 5762 transitions. [2024-11-27 23:16:12,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 1447 transitions, 13948 flow [2024-11-27 23:16:12,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1447 transitions, 13792 flow, removed 78 selfloop flow, removed 0 redundant places. [2024-11-27 23:16:12,264 INFO L231 Difference]: Finished difference. Result has 337 places, 901 transitions, 8389 flow [2024-11-27 23:16:12,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=5232, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8389, PETRI_PLACES=337, PETRI_TRANSITIONS=901} [2024-11-27 23:16:12,265 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 115 predicate places. [2024-11-27 23:16:12,265 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 901 transitions, 8389 flow [2024-11-27 23:16:12,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:16:12,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:12,267 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:12,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:16:12,267 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:16:12,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:12,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1116053751, now seen corresponding path program 2 times [2024-11-27 23:16:12,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:12,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672823197] [2024-11-27 23:16:12,268 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:16:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:12,307 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:16:12,310 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:16:17,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:17,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672823197] [2024-11-27 23:16:17,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672823197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:17,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:17,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-27 23:16:17,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134461816] [2024-11-27 23:16:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:17,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:16:17,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:17,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:16:17,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:16:22,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-11-27 23:16:22,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 901 transitions, 8389 flow. Second operand has 20 states, 20 states have (on average 162.65) internal successors, (3253), 20 states have internal predecessors, (3253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:16:22,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:22,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-11-27 23:16:22,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:46,806 INFO L124 PetriNetUnfolderBase]: 23445/86477 cut-off events. [2024-11-27 23:16:46,806 INFO L125 PetriNetUnfolderBase]: For 258136/265977 co-relation queries the response was YES. [2024-11-27 23:16:47,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287976 conditions, 86477 events. 23445/86477 cut-off events. For 258136/265977 co-relation queries the response was YES. Maximal size of possible extension queue 1261. Compared 1169415 event pairs, 4115 based on Foata normal form. 1154/84550 useless extension candidates. Maximal degree in co-relation 287855. Up to 12635 conditions per place. [2024-11-27 23:16:47,826 INFO L140 encePairwiseOnDemand]: 196/237 looper letters, 2082 selfloop transitions, 244 changer transitions 0/2618 dead transitions. [2024-11-27 23:16:47,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 2618 transitions, 30225 flow [2024-11-27 23:16:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:16:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-27 23:16:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3144 transitions. [2024-11-27 23:16:47,832 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7803425167535368 [2024-11-27 23:16:47,832 INFO L175 Difference]: Start difference. First operand has 337 places, 901 transitions, 8389 flow. Second operand 17 states and 3144 transitions. [2024-11-27 23:16:47,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 2618 transitions, 30225 flow [2024-11-27 23:16:49,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 2618 transitions, 30184 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-27 23:16:49,551 INFO L231 Difference]: Finished difference. Result has 360 places, 1138 transitions, 13118 flow [2024-11-27 23:16:49,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=8348, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13118, PETRI_PLACES=360, PETRI_TRANSITIONS=1138} [2024-11-27 23:16:49,552 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 138 predicate places. [2024-11-27 23:16:49,552 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 1138 transitions, 13118 flow [2024-11-27 23:16:49,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 162.65) internal successors, (3253), 20 states have internal predecessors, (3253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:16:49,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:49,553 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:49,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:16:49,553 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 23:16:49,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:49,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1353669235, now seen corresponding path program 3 times [2024-11-27 23:16:49,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:49,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004127814] [2024-11-27 23:16:49,554 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:16:49,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:49,576 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 23:16:49,576 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:16:51,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:51,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004127814] [2024-11-27 23:16:51,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004127814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:51,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:51,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 23:16:51,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951831734] [2024-11-27 23:16:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:51,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:16:51,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:51,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:16:51,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:16:55,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 237 [2024-11-27 23:16:55,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 1138 transitions, 13118 flow. Second operand has 18 states, 18 states have (on average 166.61111111111111) internal successors, (2999), 18 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:16:55,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:55,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 237 [2024-11-27 23:16:55,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand