./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10d5067d95273951a014725afb4753c98c29896d9675321f4fa3b00f339e7930 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:12:50,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:12:51,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 01:12:51,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:12:51,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:12:51,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:12:51,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:12:51,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:12:51,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:12:51,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:12:51,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:12:51,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:12:51,094 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:12:51,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:12:51,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:12:51,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:12:51,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:12:51,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:12:51,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:12:51,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:12:51,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:12:51,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:12:51,104 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 01:12:51,104 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:12:51,104 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:12:51,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:12:51,105 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:12:51,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:12:51,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:12:51,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:12:51,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:12:51,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:12:51,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:12:51,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:12:51,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:12:51,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:12:51,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:12:51,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:12:51,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:12:51,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:12:51,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:12:51,109 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10d5067d95273951a014725afb4753c98c29896d9675321f4fa3b00f339e7930 [2023-11-29 01:12:51,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:12:51,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:12:51,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:12:51,343 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:12:51,343 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:12:51,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-10.i [2023-11-29 01:12:54,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:12:54,373 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:12:54,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-10.i [2023-11-29 01:12:54,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/data/30b160a4d/fe0e0720069a4977a202ec38b5eb5802/FLAG2f138ca8d [2023-11-29 01:12:54,403 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/data/30b160a4d/fe0e0720069a4977a202ec38b5eb5802 [2023-11-29 01:12:54,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:12:54,408 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:12:54,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:12:54,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:12:54,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:12:54,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae567df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54, skipping insertion in model container [2023-11-29 01:12:54,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:12:54,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:12:54,767 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:12:54,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:12:54,834 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:12:54,835 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:12:54,841 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:12:54,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54 WrapperNode [2023-11-29 01:12:54,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:12:54,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:12:54,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:12:54,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:12:54,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,891 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 168 [2023-11-29 01:12:54,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:12:54,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:12:54,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:12:54,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:12:54,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:12:54,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:12:54,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:12:54,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:12:54,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (1/1) ... [2023-11-29 01:12:54,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:12:54,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:54,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:12:54,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:12:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 01:12:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-29 01:12:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-29 01:12:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 01:12:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 01:12:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:12:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:12:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:12:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-29 01:12:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-29 01:12:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 01:12:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 01:12:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:12:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:12:54,989 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:12:55,127 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:12:55,129 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:12:55,419 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:12:55,449 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:12:55,449 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 01:12:55,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:12:55 BoogieIcfgContainer [2023-11-29 01:12:55,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:12:55,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:12:55,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:12:55,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:12:55,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:12:54" (1/3) ... [2023-11-29 01:12:55,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729cf5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:12:55, skipping insertion in model container [2023-11-29 01:12:55,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:54" (2/3) ... [2023-11-29 01:12:55,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729cf5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:12:55, skipping insertion in model container [2023-11-29 01:12:55,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:12:55" (3/3) ... [2023-11-29 01:12:55,459 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-10.i [2023-11-29 01:12:55,466 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:12:55,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:12:55,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 01:12:55,484 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:12:55,547 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 01:12:55,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 211 transitions, 442 flow [2023-11-29 01:12:55,713 INFO L124 PetriNetUnfolderBase]: 32/530 cut-off events. [2023-11-29 01:12:55,713 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-29 01:12:55,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 530 events. 32/530 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2220 event pairs, 0 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 253. Up to 8 conditions per place. [2023-11-29 01:12:55,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 211 transitions, 442 flow [2023-11-29 01:12:55,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 211 transitions, 442 flow [2023-11-29 01:12:55,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:12:55,751 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ffaafc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:12:55,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-29 01:12:55,756 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:12:55,756 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-29 01:12:55,757 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:12:55,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:55,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:55,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 01:12:55,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1380371389, now seen corresponding path program 1 times [2023-11-29 01:12:55,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:55,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141604437] [2023-11-29 01:12:55,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:55,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:55,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141604437] [2023-11-29 01:12:55,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141604437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:55,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:55,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:12:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765108424] [2023-11-29 01:12:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:55,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:55,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:56,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:12:56,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 211 [2023-11-29 01:12:56,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 211 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:56,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 211 [2023-11-29 01:12:56,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:12:56,298 INFO L124 PetriNetUnfolderBase]: 78/695 cut-off events. [2023-11-29 01:12:56,299 INFO L125 PetriNetUnfolderBase]: For 49/57 co-relation queries the response was YES. [2023-11-29 01:12:56,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 695 events. 78/695 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3527 event pairs, 64 based on Foata normal form. 84/639 useless extension candidates. Maximal degree in co-relation 601. Up to 205 conditions per place. [2023-11-29 01:12:56,307 INFO L140 encePairwiseOnDemand]: 200/211 looper letters, 31 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2023-11-29 01:12:56,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 199 transitions, 484 flow [2023-11-29 01:12:56,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:12:56,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:12:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2023-11-29 01:12:56,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8625592417061612 [2023-11-29 01:12:56,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2023-11-29 01:12:56,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2023-11-29 01:12:56,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:12:56,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2023-11-29 01:12:56,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,344 INFO L175 Difference]: Start difference. First operand has 203 places, 211 transitions, 442 flow. Second operand 3 states and 546 transitions. [2023-11-29 01:12:56,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 199 transitions, 484 flow [2023-11-29 01:12:56,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 199 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:12:56,354 INFO L231 Difference]: Finished difference. Result has 199 places, 199 transitions, 422 flow [2023-11-29 01:12:56,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=199, PETRI_TRANSITIONS=199} [2023-11-29 01:12:56,359 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -4 predicate places. [2023-11-29 01:12:56,359 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 199 transitions, 422 flow [2023-11-29 01:12:56,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:56,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:56,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:12:56,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 01:12:56,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1667384214, now seen corresponding path program 1 times [2023-11-29 01:12:56,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:56,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251550533] [2023-11-29 01:12:56,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:56,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:56,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251550533] [2023-11-29 01:12:56,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251550533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:56,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:56,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:12:56,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11892078] [2023-11-29 01:12:56,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:56,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:56,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:56,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:12:56,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 211 [2023-11-29 01:12:56,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 199 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:56,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 211 [2023-11-29 01:12:56,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:12:56,771 INFO L124 PetriNetUnfolderBase]: 120/986 cut-off events. [2023-11-29 01:12:56,771 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-11-29 01:12:56,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 986 events. 120/986 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5533 event pairs, 78 based on Foata normal form. 0/873 useless extension candidates. Maximal degree in co-relation 1285. Up to 243 conditions per place. [2023-11-29 01:12:56,778 INFO L140 encePairwiseOnDemand]: 188/211 looper letters, 31 selfloop transitions, 11 changer transitions 0/189 dead transitions. [2023-11-29 01:12:56,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 189 transitions, 486 flow [2023-11-29 01:12:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:12:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:12:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2023-11-29 01:12:56,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7962085308056872 [2023-11-29 01:12:56,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2023-11-29 01:12:56,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2023-11-29 01:12:56,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:12:56,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2023-11-29 01:12:56,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,787 INFO L175 Difference]: Start difference. First operand has 199 places, 199 transitions, 422 flow. Second operand 3 states and 504 transitions. [2023-11-29 01:12:56,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 189 transitions, 486 flow [2023-11-29 01:12:56,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 189 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:12:56,794 INFO L231 Difference]: Finished difference. Result has 187 places, 187 transitions, 416 flow [2023-11-29 01:12:56,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=187, PETRI_TRANSITIONS=187} [2023-11-29 01:12:56,796 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -16 predicate places. [2023-11-29 01:12:56,796 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 187 transitions, 416 flow [2023-11-29 01:12:56,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:56,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:56,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:12:56,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 01:12:56,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1481892151, now seen corresponding path program 1 times [2023-11-29 01:12:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:56,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129348720] [2023-11-29 01:12:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:56,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:56,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:56,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129348720] [2023-11-29 01:12:56,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129348720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:56,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:56,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:12:56,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651207923] [2023-11-29 01:12:56,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:56,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:56,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:56,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:56,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:12:56,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2023-11-29 01:12:56,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 187 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:56,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:56,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2023-11-29 01:12:56,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:12:57,009 INFO L124 PetriNetUnfolderBase]: 27/463 cut-off events. [2023-11-29 01:12:57,009 INFO L125 PetriNetUnfolderBase]: For 32/36 co-relation queries the response was YES. [2023-11-29 01:12:57,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 463 events. 27/463 cut-off events. For 32/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1391 event pairs, 10 based on Foata normal form. 6/424 useless extension candidates. Maximal degree in co-relation 399. Up to 39 conditions per place. [2023-11-29 01:12:57,013 INFO L140 encePairwiseOnDemand]: 199/211 looper letters, 17 selfloop transitions, 8 changer transitions 9/192 dead transitions. [2023-11-29 01:12:57,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 192 transitions, 484 flow [2023-11-29 01:12:57,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:12:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:12:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-11-29 01:12:57,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9052132701421801 [2023-11-29 01:12:57,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-11-29 01:12:57,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-11-29 01:12:57,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:12:57,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-11-29 01:12:57,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,020 INFO L175 Difference]: Start difference. First operand has 187 places, 187 transitions, 416 flow. Second operand 3 states and 573 transitions. [2023-11-29 01:12:57,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 192 transitions, 484 flow [2023-11-29 01:12:57,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 192 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:12:57,024 INFO L231 Difference]: Finished difference. Result has 188 places, 179 transitions, 410 flow [2023-11-29 01:12:57,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=188, PETRI_TRANSITIONS=179} [2023-11-29 01:12:57,026 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -15 predicate places. [2023-11-29 01:12:57,026 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 179 transitions, 410 flow [2023-11-29 01:12:57,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:57,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:57,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:12:57,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 01:12:57,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1156726824, now seen corresponding path program 1 times [2023-11-29 01:12:57,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:57,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930725066] [2023-11-29 01:12:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:57,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930725066] [2023-11-29 01:12:57,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930725066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:57,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:57,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:12:57,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669880276] [2023-11-29 01:12:57,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:57,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:57,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:57,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:57,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:12:57,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 211 [2023-11-29 01:12:57,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 179 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:57,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 211 [2023-11-29 01:12:57,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:12:57,340 INFO L124 PetriNetUnfolderBase]: 63/661 cut-off events. [2023-11-29 01:12:57,340 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-29 01:12:57,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 661 events. 63/661 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2543 event pairs, 49 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 689. Up to 151 conditions per place. [2023-11-29 01:12:57,346 INFO L140 encePairwiseOnDemand]: 208/211 looper letters, 32 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2023-11-29 01:12:57,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 180 transitions, 480 flow [2023-11-29 01:12:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:12:57,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:12:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2023-11-29 01:12:57,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8515007898894155 [2023-11-29 01:12:57,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 539 transitions. [2023-11-29 01:12:57,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions. [2023-11-29 01:12:57,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:12:57,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions. [2023-11-29 01:12:57,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,356 INFO L175 Difference]: Start difference. First operand has 188 places, 179 transitions, 410 flow. Second operand 3 states and 539 transitions. [2023-11-29 01:12:57,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 180 transitions, 480 flow [2023-11-29 01:12:57,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 180 transitions, 472 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:12:57,363 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 404 flow [2023-11-29 01:12:57,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2023-11-29 01:12:57,364 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -24 predicate places. [2023-11-29 01:12:57,365 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 404 flow [2023-11-29 01:12:57,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:57,366 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:57,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:12:57,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 01:12:57,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:57,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2006037886, now seen corresponding path program 1 times [2023-11-29 01:12:57,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:57,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437368379] [2023-11-29 01:12:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:57,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:57,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:57,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437368379] [2023-11-29 01:12:57,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437368379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:57,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198718150] [2023-11-29 01:12:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:57,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:57,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:57,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:12:57,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:12:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:57,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:12:57,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:12:57,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:12:57,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198718150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:57,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:57,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 01:12:57,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988956576] [2023-11-29 01:12:57,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:57,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:57,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:57,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:57,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:12:57,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 211 [2023-11-29 01:12:57,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:57,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 211 [2023-11-29 01:12:57,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:12:57,864 INFO L124 PetriNetUnfolderBase]: 63/638 cut-off events. [2023-11-29 01:12:57,864 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-29 01:12:57,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 638 events. 63/638 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2432 event pairs, 49 based on Foata normal form. 0/576 useless extension candidates. Maximal degree in co-relation 771. Up to 151 conditions per place. [2023-11-29 01:12:57,870 INFO L140 encePairwiseOnDemand]: 208/211 looper letters, 32 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2023-11-29 01:12:57,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 179 transitions, 474 flow [2023-11-29 01:12:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:12:57,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:12:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2023-11-29 01:12:57,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8515007898894155 [2023-11-29 01:12:57,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 539 transitions. [2023-11-29 01:12:57,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions. [2023-11-29 01:12:57,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:12:57,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions. [2023-11-29 01:12:57,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,880 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 404 flow. Second operand 3 states and 539 transitions. [2023-11-29 01:12:57,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 179 transitions, 474 flow [2023-11-29 01:12:57,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 179 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:12:57,887 INFO L231 Difference]: Finished difference. Result has 178 places, 177 transitions, 402 flow [2023-11-29 01:12:57,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=178, PETRI_TRANSITIONS=177} [2023-11-29 01:12:57,888 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -25 predicate places. [2023-11-29 01:12:57,889 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 177 transitions, 402 flow [2023-11-29 01:12:57,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:57,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:57,890 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:57,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:12:58,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:58,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 01:12:58,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1112452774, now seen corresponding path program 1 times [2023-11-29 01:12:58,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:58,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064298013] [2023-11-29 01:12:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:58,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:12:58,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:12:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:12:58,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:12:58,151 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:12:58,152 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2023-11-29 01:12:58,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-29 01:12:58,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-29 01:12:58,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-29 01:12:58,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-29 01:12:58,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-29 01:12:58,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-29 01:12:58,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-29 01:12:58,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-29 01:12:58,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-29 01:12:58,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-29 01:12:58,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-29 01:12:58,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-29 01:12:58,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-29 01:12:58,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-29 01:12:58,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-29 01:12:58,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-29 01:12:58,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-29 01:12:58,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-29 01:12:58,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-29 01:12:58,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-29 01:12:58,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-11-29 01:12:58,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-29 01:12:58,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-29 01:12:58,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-29 01:12:58,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-29 01:12:58,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-29 01:12:58,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-29 01:12:58,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-29 01:12:58,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2023-11-29 01:12:58,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-29 01:12:58,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-29 01:12:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-29 01:12:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-29 01:12:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-29 01:12:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-29 01:12:58,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:12:58,163 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-29 01:12:58,166 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:12:58,166 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 01:12:58,212 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-29 01:12:58,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 266 transitions, 576 flow [2023-11-29 01:12:58,410 INFO L124 PetriNetUnfolderBase]: 131/1780 cut-off events. [2023-11-29 01:12:58,410 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-29 01:12:58,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 1780 events. 131/1780 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 10680 event pairs, 2 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 1002. Up to 32 conditions per place. [2023-11-29 01:12:58,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 266 transitions, 576 flow [2023-11-29 01:12:58,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 266 transitions, 576 flow [2023-11-29 01:12:58,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:12:58,435 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ffaafc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:12:58,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-29 01:12:58,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:12:58,438 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-29 01:12:58,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:12:58,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:58,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:58,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:12:58,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash 663279037, now seen corresponding path program 1 times [2023-11-29 01:12:58,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:58,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958194116] [2023-11-29 01:12:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:58,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:58,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:58,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958194116] [2023-11-29 01:12:58,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958194116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:58,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:58,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:12:58,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276085265] [2023-11-29 01:12:58,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:58,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:58,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:58,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:12:58,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 266 [2023-11-29 01:12:58,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 266 transitions, 576 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:58,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:58,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 266 [2023-11-29 01:12:58,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:12:59,436 INFO L124 PetriNetUnfolderBase]: 1117/4297 cut-off events. [2023-11-29 01:12:59,437 INFO L125 PetriNetUnfolderBase]: For 706/914 co-relation queries the response was YES. [2023-11-29 01:12:59,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6636 conditions, 4297 events. 1117/4297 cut-off events. For 706/914 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 34095 event pairs, 985 based on Foata normal form. 1640/5205 useless extension candidates. Maximal degree in co-relation 4569. Up to 2064 conditions per place. [2023-11-29 01:12:59,488 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 39 selfloop transitions, 2 changer transitions 0/247 dead transitions. [2023-11-29 01:12:59,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 247 transitions, 620 flow [2023-11-29 01:12:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:12:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:12:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 684 transitions. [2023-11-29 01:12:59,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2023-11-29 01:12:59,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 684 transitions. [2023-11-29 01:12:59,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 684 transitions. [2023-11-29 01:12:59,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:12:59,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 684 transitions. [2023-11-29 01:12:59,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:59,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:59,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:59,497 INFO L175 Difference]: Start difference. First operand has 253 places, 266 transitions, 576 flow. Second operand 3 states and 684 transitions. [2023-11-29 01:12:59,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 247 transitions, 620 flow [2023-11-29 01:12:59,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 247 transitions, 620 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:12:59,503 INFO L231 Difference]: Finished difference. Result has 244 places, 247 transitions, 542 flow [2023-11-29 01:12:59,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=244, PETRI_TRANSITIONS=247} [2023-11-29 01:12:59,504 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -9 predicate places. [2023-11-29 01:12:59,505 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 247 transitions, 542 flow [2023-11-29 01:12:59,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:59,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:59,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:59,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:12:59,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:12:59,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1398050190, now seen corresponding path program 1 times [2023-11-29 01:12:59,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171131458] [2023-11-29 01:12:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:59,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171131458] [2023-11-29 01:12:59,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171131458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:59,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:59,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:12:59,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416871374] [2023-11-29 01:12:59,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:59,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:12:59,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:59,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:12:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:12:59,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 266 [2023-11-29 01:12:59,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 247 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:59,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:59,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 266 [2023-11-29 01:12:59,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:00,685 INFO L124 PetriNetUnfolderBase]: 1641/6801 cut-off events. [2023-11-29 01:13:00,685 INFO L125 PetriNetUnfolderBase]: For 649/685 co-relation queries the response was YES. [2023-11-29 01:13:00,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10021 conditions, 6801 events. 1641/6801 cut-off events. For 649/685 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 56027 event pairs, 1169 based on Foata normal form. 0/6122 useless extension candidates. Maximal degree in co-relation 9990. Up to 2412 conditions per place. [2023-11-29 01:13:00,804 INFO L140 encePairwiseOnDemand]: 243/266 looper letters, 41 selfloop transitions, 11 changer transitions 0/239 dead transitions. [2023-11-29 01:13:00,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 239 transitions, 630 flow [2023-11-29 01:13:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-11-29 01:13:00,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8020050125313283 [2023-11-29 01:13:00,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-11-29 01:13:00,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-11-29 01:13:00,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:00,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-11-29 01:13:00,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:00,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:00,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:00,813 INFO L175 Difference]: Start difference. First operand has 244 places, 247 transitions, 542 flow. Second operand 3 states and 640 transitions. [2023-11-29 01:13:00,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 239 transitions, 630 flow [2023-11-29 01:13:00,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 239 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:00,820 INFO L231 Difference]: Finished difference. Result has 232 places, 235 transitions, 536 flow [2023-11-29 01:13:00,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=232, PETRI_TRANSITIONS=235} [2023-11-29 01:13:00,821 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -21 predicate places. [2023-11-29 01:13:00,821 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 235 transitions, 536 flow [2023-11-29 01:13:00,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:00,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:00,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:00,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:13:00,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:13:00,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:00,823 INFO L85 PathProgramCache]: Analyzing trace with hash -149754057, now seen corresponding path program 1 times [2023-11-29 01:13:00,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:00,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709531151] [2023-11-29 01:13:00,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:00,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:00,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:00,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709531151] [2023-11-29 01:13:00,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709531151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347190318] [2023-11-29 01:13:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:00,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:00,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:00,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:00,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 266 [2023-11-29 01:13:00,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 235 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:00,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:00,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 266 [2023-11-29 01:13:00,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:01,618 INFO L124 PetriNetUnfolderBase]: 630/4766 cut-off events. [2023-11-29 01:13:01,618 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2023-11-29 01:13:01,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6448 conditions, 4766 events. 630/4766 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 40231 event pairs, 228 based on Foata normal form. 42/4314 useless extension candidates. Maximal degree in co-relation 4151. Up to 682 conditions per place. [2023-11-29 01:13:01,652 INFO L140 encePairwiseOnDemand]: 254/266 looper letters, 37 selfloop transitions, 8 changer transitions 0/251 dead transitions. [2023-11-29 01:13:01,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 251 transitions, 682 flow [2023-11-29 01:13:01,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2023-11-29 01:13:01,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.899749373433584 [2023-11-29 01:13:01,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 718 transitions. [2023-11-29 01:13:01,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 718 transitions. [2023-11-29 01:13:01,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:01,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 718 transitions. [2023-11-29 01:13:01,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:01,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:01,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:01,661 INFO L175 Difference]: Start difference. First operand has 232 places, 235 transitions, 536 flow. Second operand 3 states and 718 transitions. [2023-11-29 01:13:01,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 251 transitions, 682 flow [2023-11-29 01:13:01,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 251 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:01,668 INFO L231 Difference]: Finished difference. Result has 233 places, 239 transitions, 562 flow [2023-11-29 01:13:01,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=233, PETRI_TRANSITIONS=239} [2023-11-29 01:13:01,669 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -20 predicate places. [2023-11-29 01:13:01,669 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 239 transitions, 562 flow [2023-11-29 01:13:01,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:01,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:01,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:01,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:13:01,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:13:01,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash 358028495, now seen corresponding path program 1 times [2023-11-29 01:13:01,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:01,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305268172] [2023-11-29 01:13:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:01,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:01,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:01,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305268172] [2023-11-29 01:13:01,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305268172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:01,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:01,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:13:01,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678104358] [2023-11-29 01:13:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:01,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:01,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:01,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:01,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:01,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 266 [2023-11-29 01:13:01,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 239 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:01,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:01,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 266 [2023-11-29 01:13:01,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:02,593 INFO L124 PetriNetUnfolderBase]: 1140/5178 cut-off events. [2023-11-29 01:13:02,593 INFO L125 PetriNetUnfolderBase]: For 734/810 co-relation queries the response was YES. [2023-11-29 01:13:02,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7830 conditions, 5178 events. 1140/5178 cut-off events. For 734/810 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 41293 event pairs, 990 based on Foata normal form. 0/4551 useless extension candidates. Maximal degree in co-relation 3509. Up to 2049 conditions per place. [2023-11-29 01:13:02,633 INFO L140 encePairwiseOnDemand]: 263/266 looper letters, 43 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2023-11-29 01:13:02,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 242 transitions, 658 flow [2023-11-29 01:13:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2023-11-29 01:13:02,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8471177944862155 [2023-11-29 01:13:02,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2023-11-29 01:13:02,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2023-11-29 01:13:02,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:02,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2023-11-29 01:13:02,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:02,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:02,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:02,639 INFO L175 Difference]: Start difference. First operand has 233 places, 239 transitions, 562 flow. Second operand 3 states and 676 transitions. [2023-11-29 01:13:02,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 242 transitions, 658 flow [2023-11-29 01:13:02,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 242 transitions, 650 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:13:02,645 INFO L231 Difference]: Finished difference. Result has 233 places, 238 transitions, 556 flow [2023-11-29 01:13:02,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=233, PETRI_TRANSITIONS=238} [2023-11-29 01:13:02,646 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -20 predicate places. [2023-11-29 01:13:02,646 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 238 transitions, 556 flow [2023-11-29 01:13:02,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:02,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:02,647 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:02,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:13:02,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:13:02,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:02,648 INFO L85 PathProgramCache]: Analyzing trace with hash -503768973, now seen corresponding path program 1 times [2023-11-29 01:13:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:02,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692675100] [2023-11-29 01:13:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:02,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:02,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:02,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692675100] [2023-11-29 01:13:02,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692675100] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:13:02,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815924287] [2023-11-29 01:13:02,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:02,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:02,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:02,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:02,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:13:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:02,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:02,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:13:02,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:02,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815924287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:02,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:13:02,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 01:13:02,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069950620] [2023-11-29 01:13:02,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:02,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:02,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:02,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:02,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:02,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 266 [2023-11-29 01:13:02,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 238 transitions, 556 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:02,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:02,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 266 [2023-11-29 01:13:02,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:03,700 INFO L124 PetriNetUnfolderBase]: 1140/5124 cut-off events. [2023-11-29 01:13:03,700 INFO L125 PetriNetUnfolderBase]: For 743/819 co-relation queries the response was YES. [2023-11-29 01:13:03,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7729 conditions, 5124 events. 1140/5124 cut-off events. For 743/819 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 41020 event pairs, 990 based on Foata normal form. 0/4498 useless extension candidates. Maximal degree in co-relation 6026. Up to 2049 conditions per place. [2023-11-29 01:13:03,737 INFO L140 encePairwiseOnDemand]: 263/266 looper letters, 43 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2023-11-29 01:13:03,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 241 transitions, 652 flow [2023-11-29 01:13:03,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:03,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2023-11-29 01:13:03,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8471177944862155 [2023-11-29 01:13:03,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2023-11-29 01:13:03,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2023-11-29 01:13:03,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:03,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2023-11-29 01:13:03,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:03,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:03,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:03,745 INFO L175 Difference]: Start difference. First operand has 233 places, 238 transitions, 556 flow. Second operand 3 states and 676 transitions. [2023-11-29 01:13:03,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 241 transitions, 652 flow [2023-11-29 01:13:03,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 241 transitions, 648 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:03,753 INFO L231 Difference]: Finished difference. Result has 232 places, 237 transitions, 554 flow [2023-11-29 01:13:03,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=232, PETRI_TRANSITIONS=237} [2023-11-29 01:13:03,754 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -21 predicate places. [2023-11-29 01:13:03,754 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 237 transitions, 554 flow [2023-11-29 01:13:03,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:03,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:03,755 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:03,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 01:13:03,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:13:03,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:13:03,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 740618588, now seen corresponding path program 1 times [2023-11-29 01:13:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:03,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067215808] [2023-11-29 01:13:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:03,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:04,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067215808] [2023-11-29 01:13:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067215808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:13:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688044043] [2023-11-29 01:13:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:04,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:04,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:04,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:13:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:04,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:04,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:13:04,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:04,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688044043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:04,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:13:04,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 01:13:04,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204503304] [2023-11-29 01:13:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:04,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:04,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:04,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:04,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:04,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 266 [2023-11-29 01:13:04,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 237 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:04,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:04,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 266 [2023-11-29 01:13:04,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:09,614 INFO L124 PetriNetUnfolderBase]: 6387/40769 cut-off events. [2023-11-29 01:13:09,614 INFO L125 PetriNetUnfolderBase]: For 11820/88579 co-relation queries the response was YES. [2023-11-29 01:13:09,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53706 conditions, 40769 events. 6387/40769 cut-off events. For 11820/88579 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 583438 event pairs, 1961 based on Foata normal form. 69/34588 useless extension candidates. Maximal degree in co-relation 45859. Up to 4468 conditions per place. [2023-11-29 01:13:09,882 INFO L140 encePairwiseOnDemand]: 252/266 looper letters, 39 selfloop transitions, 10 changer transitions 0/258 dead transitions. [2023-11-29 01:13:09,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 258 transitions, 723 flow [2023-11-29 01:13:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:09,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:09,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2023-11-29 01:13:09,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9085213032581454 [2023-11-29 01:13:09,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 725 transitions. [2023-11-29 01:13:09,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 725 transitions. [2023-11-29 01:13:09,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:09,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 725 transitions. [2023-11-29 01:13:09,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:09,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:09,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:09,888 INFO L175 Difference]: Start difference. First operand has 232 places, 237 transitions, 554 flow. Second operand 3 states and 725 transitions. [2023-11-29 01:13:09,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 258 transitions, 723 flow [2023-11-29 01:13:09,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 258 transitions, 719 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:09,918 INFO L231 Difference]: Finished difference. Result has 234 places, 247 transitions, 638 flow [2023-11-29 01:13:09,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=234, PETRI_TRANSITIONS=247} [2023-11-29 01:13:09,920 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -19 predicate places. [2023-11-29 01:13:09,920 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 247 transitions, 638 flow [2023-11-29 01:13:09,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:09,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:09,920 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:09,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:13:10,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:13:10,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:13:10,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:10,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1230099206, now seen corresponding path program 1 times [2023-11-29 01:13:10,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:10,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874145263] [2023-11-29 01:13:10,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:10,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:10,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:10,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874145263] [2023-11-29 01:13:10,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874145263] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:13:10,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103897898] [2023-11-29 01:13:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:10,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:10,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:10,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:10,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:13:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:10,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:13:10,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:10,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:10,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103897898] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:10,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:13:10,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 01:13:10,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747400519] [2023-11-29 01:13:10,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:10,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:13:10,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:10,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:13:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:13:10,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 266 [2023-11-29 01:13:10,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 247 transitions, 638 flow. Second operand has 10 states, 10 states have (on average 217.5) internal successors, (2175), 10 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:10,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:10,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 266 [2023-11-29 01:13:10,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:10,734 INFO L124 PetriNetUnfolderBase]: 62/320 cut-off events. [2023-11-29 01:13:10,734 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-11-29 01:13:10,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 320 events. 62/320 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1134 event pairs, 0 based on Foata normal form. 12/324 useless extension candidates. Maximal degree in co-relation 505. Up to 42 conditions per place. [2023-11-29 01:13:10,736 INFO L140 encePairwiseOnDemand]: 261/266 looper letters, 29 selfloop transitions, 7 changer transitions 0/76 dead transitions. [2023-11-29 01:13:10,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 262 flow [2023-11-29 01:13:10,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:13:10,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 01:13:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1973 transitions. [2023-11-29 01:13:10,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8241436925647452 [2023-11-29 01:13:10,742 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1973 transitions. [2023-11-29 01:13:10,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1973 transitions. [2023-11-29 01:13:10,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:10,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1973 transitions. [2023-11-29 01:13:10,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 219.22222222222223) internal successors, (1973), 9 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:10,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:10,755 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:10,755 INFO L175 Difference]: Start difference. First operand has 234 places, 247 transitions, 638 flow. Second operand 9 states and 1973 transitions. [2023-11-29 01:13:10,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 262 flow [2023-11-29 01:13:10,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 76 transitions, 262 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:13:10,757 INFO L231 Difference]: Finished difference. Result has 72 places, 56 transitions, 146 flow [2023-11-29 01:13:10,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=146, PETRI_PLACES=72, PETRI_TRANSITIONS=56} [2023-11-29 01:13:10,758 INFO L281 CegarLoopForPetriNet]: 253 programPoint places, -181 predicate places. [2023-11-29 01:13:10,758 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 56 transitions, 146 flow [2023-11-29 01:13:10,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 217.5) internal successors, (2175), 10 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:10,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:10,760 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:10,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:13:10,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:13:10,960 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-29 01:13:10,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash -527945915, now seen corresponding path program 1 times [2023-11-29 01:13:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:10,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863446781] [2023-11-29 01:13:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:10,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:13:10,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:13:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:13:10,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:13:10,999 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2023-11-29 01:13:11,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2023-11-29 01:13:11,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2023-11-29 01:13:11,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2023-11-29 01:13:11,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2023-11-29 01:13:11,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2023-11-29 01:13:11,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2023-11-29 01:13:11,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2023-11-29 01:13:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2023-11-29 01:13:11,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2023-11-29 01:13:11,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2023-11-29 01:13:11,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2023-11-29 01:13:11,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2023-11-29 01:13:11,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2023-11-29 01:13:11,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2023-11-29 01:13:11,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2023-11-29 01:13:11,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2023-11-29 01:13:11,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:13:11,005 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:11,006 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:13:11,006 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 01:13:11,049 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-11-29 01:13:11,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 321 transitions, 714 flow [2023-11-29 01:13:11,987 INFO L124 PetriNetUnfolderBase]: 544/5962 cut-off events. [2023-11-29 01:13:11,987 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2023-11-29 01:13:12,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6398 conditions, 5962 events. 544/5962 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 48354 event pairs, 64 based on Foata normal form. 0/4761 useless extension candidates. Maximal degree in co-relation 3403. Up to 192 conditions per place. [2023-11-29 01:13:12,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 303 places, 321 transitions, 714 flow [2023-11-29 01:13:12,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 303 places, 321 transitions, 714 flow [2023-11-29 01:13:12,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:13:12,077 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ffaafc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:13:12,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2023-11-29 01:13:12,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:13:12,079 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-29 01:13:12,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:13:12,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:12,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:12,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:13:12,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash 333663357, now seen corresponding path program 1 times [2023-11-29 01:13:12,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:12,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918355345] [2023-11-29 01:13:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:12,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:12,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:12,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918355345] [2023-11-29 01:13:12,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918355345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:12,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:12,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:13:12,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276759030] [2023-11-29 01:13:12,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:12,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:12,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:12,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:12,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 321 [2023-11-29 01:13:12,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 321 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:12,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:12,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 321 [2023-11-29 01:13:12,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:19,393 INFO L124 PetriNetUnfolderBase]: 12246/31283 cut-off events. [2023-11-29 01:13:19,394 INFO L125 PetriNetUnfolderBase]: For 7919/10319 co-relation queries the response was YES. [2023-11-29 01:13:20,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53182 conditions, 31283 events. 12246/31283 cut-off events. For 7919/10319 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 309427 event pairs, 10886 based on Foata normal form. 19719/46593 useless extension candidates. Maximal degree in co-relation 38926. Up to 19179 conditions per place. [2023-11-29 01:13:20,314 INFO L140 encePairwiseOnDemand]: 302/321 looper letters, 47 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2023-11-29 01:13:20,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 295 transitions, 760 flow [2023-11-29 01:13:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 822 transitions. [2023-11-29 01:13:20,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8535825545171339 [2023-11-29 01:13:20,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 822 transitions. [2023-11-29 01:13:20,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 822 transitions. [2023-11-29 01:13:20,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:20,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 822 transitions. [2023-11-29 01:13:20,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:20,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:20,323 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:20,323 INFO L175 Difference]: Start difference. First operand has 303 places, 321 transitions, 714 flow. Second operand 3 states and 822 transitions. [2023-11-29 01:13:20,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 295 transitions, 760 flow [2023-11-29 01:13:20,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 295 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:13:20,445 INFO L231 Difference]: Finished difference. Result has 289 places, 295 transitions, 666 flow [2023-11-29 01:13:20,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=666, PETRI_PLACES=289, PETRI_TRANSITIONS=295} [2023-11-29 01:13:20,446 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -14 predicate places. [2023-11-29 01:13:20,446 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 295 transitions, 666 flow [2023-11-29 01:13:20,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:20,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:20,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:20,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:13:20,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:13:20,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1611749649, now seen corresponding path program 1 times [2023-11-29 01:13:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:20,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134554443] [2023-11-29 01:13:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:20,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:20,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134554443] [2023-11-29 01:13:20,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134554443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:20,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:20,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:13:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362452997] [2023-11-29 01:13:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:20,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:20,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:20,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:20,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 321 [2023-11-29 01:13:20,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 295 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:20,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:20,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 321 [2023-11-29 01:13:20,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:30,840 INFO L124 PetriNetUnfolderBase]: 17428/52426 cut-off events. [2023-11-29 01:13:30,840 INFO L125 PetriNetUnfolderBase]: For 7788/8160 co-relation queries the response was YES. [2023-11-29 01:13:31,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81993 conditions, 52426 events. 17428/52426 cut-off events. For 7788/8160 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 564319 event pairs, 12762 based on Foata normal form. 0/48110 useless extension candidates. Maximal degree in co-relation 81960. Up to 22195 conditions per place. [2023-11-29 01:13:31,825 INFO L140 encePairwiseOnDemand]: 298/321 looper letters, 51 selfloop transitions, 11 changer transitions 0/289 dead transitions. [2023-11-29 01:13:31,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 289 transitions, 778 flow [2023-11-29 01:13:31,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2023-11-29 01:13:31,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8058151609553479 [2023-11-29 01:13:31,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 776 transitions. [2023-11-29 01:13:31,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 776 transitions. [2023-11-29 01:13:31,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:31,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 776 transitions. [2023-11-29 01:13:31,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:31,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:31,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:31,835 INFO L175 Difference]: Start difference. First operand has 289 places, 295 transitions, 666 flow. Second operand 3 states and 776 transitions. [2023-11-29 01:13:31,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 289 transitions, 778 flow [2023-11-29 01:13:31,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 289 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:31,853 INFO L231 Difference]: Finished difference. Result has 277 places, 283 transitions, 660 flow [2023-11-29 01:13:31,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=277, PETRI_TRANSITIONS=283} [2023-11-29 01:13:31,854 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -26 predicate places. [2023-11-29 01:13:31,854 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 283 transitions, 660 flow [2023-11-29 01:13:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:31,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:31,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:31,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:13:31,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:13:31,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:31,855 INFO L85 PathProgramCache]: Analyzing trace with hash 920941943, now seen corresponding path program 1 times [2023-11-29 01:13:31,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:31,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940775944] [2023-11-29 01:13:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:31,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:31,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:31,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:31,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940775944] [2023-11-29 01:13:31,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940775944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:31,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:31,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:31,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342972925] [2023-11-29 01:13:31,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:31,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:31,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:31,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:31,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:31,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 321 [2023-11-29 01:13:31,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 283 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:31,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:31,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 321 [2023-11-29 01:13:31,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:40,033 INFO L124 PetriNetUnfolderBase]: 8365/42561 cut-off events. [2023-11-29 01:13:40,033 INFO L125 PetriNetUnfolderBase]: For 10184/10500 co-relation queries the response was YES. [2023-11-29 01:13:40,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60868 conditions, 42561 events. 8365/42561 cut-off events. For 10184/10500 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 547611 event pairs, 3344 based on Foata normal form. 300/38955 useless extension candidates. Maximal degree in co-relation 42260. Up to 8245 conditions per place. [2023-11-29 01:13:40,598 INFO L140 encePairwiseOnDemand]: 309/321 looper letters, 51 selfloop transitions, 8 changer transitions 0/305 dead transitions. [2023-11-29 01:13:40,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 305 transitions, 858 flow [2023-11-29 01:13:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 858 transitions. [2023-11-29 01:13:40,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8909657320872274 [2023-11-29 01:13:40,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 858 transitions. [2023-11-29 01:13:40,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 858 transitions. [2023-11-29 01:13:40,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:40,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 858 transitions. [2023-11-29 01:13:40,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:40,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:40,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:40,605 INFO L175 Difference]: Start difference. First operand has 277 places, 283 transitions, 660 flow. Second operand 3 states and 858 transitions. [2023-11-29 01:13:40,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 305 transitions, 858 flow [2023-11-29 01:13:40,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 305 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:40,627 INFO L231 Difference]: Finished difference. Result has 278 places, 287 transitions, 686 flow [2023-11-29 01:13:40,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=278, PETRI_TRANSITIONS=287} [2023-11-29 01:13:40,628 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -25 predicate places. [2023-11-29 01:13:40,628 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 287 transitions, 686 flow [2023-11-29 01:13:40,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:40,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:40,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:40,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:13:40,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:13:40,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1689035613, now seen corresponding path program 1 times [2023-11-29 01:13:40,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:40,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132925603] [2023-11-29 01:13:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:40,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:40,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:40,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132925603] [2023-11-29 01:13:40,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132925603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:40,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:40,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:13:40,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432469648] [2023-11-29 01:13:40,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:40,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:40,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:40,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:40,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:40,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 321 [2023-11-29 01:13:40,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 287 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:40,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:40,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 321 [2023-11-29 01:13:40,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:49,060 INFO L124 PetriNetUnfolderBase]: 14395/40086 cut-off events. [2023-11-29 01:13:49,060 INFO L125 PetriNetUnfolderBase]: For 11299/13503 co-relation queries the response was YES. [2023-11-29 01:13:49,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67404 conditions, 40086 events. 14395/40086 cut-off events. For 11299/13503 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 428546 event pairs, 12733 based on Foata normal form. 0/34962 useless extension candidates. Maximal degree in co-relation 32160. Up to 22262 conditions per place. [2023-11-29 01:13:49,681 INFO L140 encePairwiseOnDemand]: 318/321 looper letters, 53 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2023-11-29 01:13:49,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 292 transitions, 806 flow [2023-11-29 01:13:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:49,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-11-29 01:13:49,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8431983385254413 [2023-11-29 01:13:49,684 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-11-29 01:13:49,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-11-29 01:13:49,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:49,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-11-29 01:13:49,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:49,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:49,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:49,688 INFO L175 Difference]: Start difference. First operand has 278 places, 287 transitions, 686 flow. Second operand 3 states and 812 transitions. [2023-11-29 01:13:49,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 292 transitions, 806 flow [2023-11-29 01:13:49,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 292 transitions, 798 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:13:49,752 INFO L231 Difference]: Finished difference. Result has 278 places, 286 transitions, 680 flow [2023-11-29 01:13:49,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=278, PETRI_TRANSITIONS=286} [2023-11-29 01:13:49,753 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -25 predicate places. [2023-11-29 01:13:49,753 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 286 transitions, 680 flow [2023-11-29 01:13:49,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:49,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:49,753 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:49,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 01:13:49,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:13:49,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1879037084, now seen corresponding path program 1 times [2023-11-29 01:13:49,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:49,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783397734] [2023-11-29 01:13:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:49,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:49,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:49,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783397734] [2023-11-29 01:13:49,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783397734] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:13:49,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292187824] [2023-11-29 01:13:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:49,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:49,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:49,804 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:49,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:13:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:49,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:49,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:13:49,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:49,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292187824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:49,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:13:49,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 01:13:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745525413] [2023-11-29 01:13:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:49,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:49,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:49,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:49,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:49,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 321 [2023-11-29 01:13:49,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 286 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:49,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:49,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 321 [2023-11-29 01:13:49,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:13:58,332 INFO L124 PetriNetUnfolderBase]: 14395/39983 cut-off events. [2023-11-29 01:13:58,332 INFO L125 PetriNetUnfolderBase]: For 11331/13535 co-relation queries the response was YES. [2023-11-29 01:13:58,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67070 conditions, 39983 events. 14395/39983 cut-off events. For 11331/13535 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 427682 event pairs, 12733 based on Foata normal form. 0/34871 useless extension candidates. Maximal degree in co-relation 53992. Up to 22262 conditions per place. [2023-11-29 01:13:58,962 INFO L140 encePairwiseOnDemand]: 318/321 looper letters, 53 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2023-11-29 01:13:58,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 291 transitions, 800 flow [2023-11-29 01:13:58,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:58,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:13:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-11-29 01:13:58,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8431983385254413 [2023-11-29 01:13:58,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-11-29 01:13:58,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-11-29 01:13:58,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:13:58,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-11-29 01:13:58,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:58,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:58,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:58,969 INFO L175 Difference]: Start difference. First operand has 278 places, 286 transitions, 680 flow. Second operand 3 states and 812 transitions. [2023-11-29 01:13:58,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 291 transitions, 800 flow [2023-11-29 01:13:59,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 291 transitions, 796 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:13:59,128 INFO L231 Difference]: Finished difference. Result has 277 places, 285 transitions, 678 flow [2023-11-29 01:13:59,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=277, PETRI_TRANSITIONS=285} [2023-11-29 01:13:59,129 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -26 predicate places. [2023-11-29 01:13:59,129 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 285 transitions, 678 flow [2023-11-29 01:13:59,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:59,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:13:59,130 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:59,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:13:59,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:59,330 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-29 01:13:59,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash 133023167, now seen corresponding path program 1 times [2023-11-29 01:13:59,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:59,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656946050] [2023-11-29 01:13:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:59,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:13:59,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:59,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656946050] [2023-11-29 01:13:59,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656946050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:13:59,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492044486] [2023-11-29 01:13:59,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:59,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:59,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:59,395 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:59,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2ca99d-7b72-41ae-9fc4-25b3afb0dd3f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:13:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:59,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:13:59,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:59,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492044486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:59,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:13:59,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 01:13:59,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449148578] [2023-11-29 01:13:59,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:59,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:59,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 321 [2023-11-29 01:13:59,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 285 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:13:59,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:13:59,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 321 [2023-11-29 01:13:59,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand