./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/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_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/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_db205bd9-8856-47a9-a2b7-a1abfe8dd132/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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:12:38,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:12:38,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 02:12:38,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:12:38,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:12:38,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:12:38,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:12:38,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:12:38,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:12:38,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:12:38,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:12:38,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:12:38,692 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:12:38,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:12:38,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:12:38,693 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:12:38,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:12:38,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:12:38,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:12:38,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:12:38,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:12:38,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:12:38,697 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 02:12:38,697 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:12:38,698 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:12:38,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:12:38,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:12:38,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:12:38,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:12:38,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:12:38,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:12:38,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:12:38,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:12:38,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:12:38,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:12:38,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:12:38,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:12:38,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:12:38,703 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:12:38,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:12:38,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:12:38,704 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_db205bd9-8856-47a9-a2b7-a1abfe8dd132/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2023-11-29 02:12:38,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:12:38,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:12:38,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:12:38,961 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:12:38,962 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:12:38,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-29 02:12:41,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:12:41,924 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:12:41,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-29 02:12:41,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/data/6e3977045/e438bd12c4ea44218214bfff803d7d1b/FLAG6a991582b [2023-11-29 02:12:41,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/data/6e3977045/e438bd12c4ea44218214bfff803d7d1b [2023-11-29 02:12:41,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:12:41,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:12:41,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:12:41,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:12:41,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:12:41,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:12:41" (1/1) ... [2023-11-29 02:12:41,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78481a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:41, skipping insertion in model container [2023-11-29 02:12:41,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:12:41" (1/1) ... [2023-11-29 02:12:42,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:12:42,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:12:42,371 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:12:42,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:12:42,490 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:12:42,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42 WrapperNode [2023-11-29 02:12:42,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:12:42,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:12:42,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:12:42,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:12:42,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,563 INFO L138 Inliner]: procedures = 266, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-11-29 02:12:42,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:12:42,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:12:42,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:12:42,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:12:42,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:12:42,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:12:42,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:12:42,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:12:42,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (1/1) ... [2023-11-29 02:12:42,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:12:42,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:42,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:12:42,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:12:42,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:12:42,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:12:42,663 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 02:12:42,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 02:12:42,663 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 02:12:42,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:12:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 02:12:42,664 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 02:12:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 02:12:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:12:42,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:12:42,665 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 02:12:42,789 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:12:42,790 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:12:42,953 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:12:42,978 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:12:42,978 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:12:42,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:12:42 BoogieIcfgContainer [2023-11-29 02:12:42,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:12:42,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:12:42,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:12:42,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:12:42,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:12:41" (1/3) ... [2023-11-29 02:12:42,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa221c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:12:42, skipping insertion in model container [2023-11-29 02:12:42,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:12:42" (2/3) ... [2023-11-29 02:12:42,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa221c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:12:42, skipping insertion in model container [2023-11-29 02:12:42,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:12:42" (3/3) ... [2023-11-29 02:12:42,987 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-11-29 02:12:42,994 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 02:12:43,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:12:43,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 02:12:43,002 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 02:12:43,049 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 02:12:43,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 91 transitions, 186 flow [2023-11-29 02:12:43,118 INFO L124 PetriNetUnfolderBase]: 1/93 cut-off events. [2023-11-29 02:12:43,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 02:12:43,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 1/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-29 02:12:43,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 91 transitions, 186 flow [2023-11-29 02:12:43,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 88 transitions, 179 flow [2023-11-29 02:12:43,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:12:43,138 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;@1837b63d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:12:43,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 02:12:43,161 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 02:12:43,161 INFO L124 PetriNetUnfolderBase]: 1/70 cut-off events. [2023-11-29 02:12:43,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 02:12:43,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:43,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:43,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:43,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash -557522652, now seen corresponding path program 1 times [2023-11-29 02:12:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742487109] [2023-11-29 02:12:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:44,052 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 02:12:44,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742487109] [2023-11-29 02:12:44,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742487109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:44,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:44,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:12:44,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211012061] [2023-11-29 02:12:44,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:44,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:12:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:44,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:12:44,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:12:44,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2023-11-29 02:12:44,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 02:12:44,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:44,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2023-11-29 02:12:44,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:44,439 INFO L124 PetriNetUnfolderBase]: 79/351 cut-off events. [2023-11-29 02:12:44,440 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 02:12:44,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 351 events. 79/351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1508 event pairs, 25 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 477. Up to 130 conditions per place. [2023-11-29 02:12:44,445 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 21 selfloop transitions, 22 changer transitions 4/117 dead transitions. [2023-11-29 02:12:44,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 117 transitions, 331 flow [2023-11-29 02:12:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:12:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 02:12:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2023-11-29 02:12:44,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8901098901098901 [2023-11-29 02:12:44,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2023-11-29 02:12:44,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2023-11-29 02:12:44,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:44,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2023-11-29 02:12:44,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 02:12:44,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states 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 02:12:44,479 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states 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 02:12:44,481 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 179 flow. Second operand 6 states and 486 transitions. [2023-11-29 02:12:44,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 117 transitions, 331 flow [2023-11-29 02:12:44,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 02:12:44,488 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 328 flow [2023-11-29 02:12:44,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2023-11-29 02:12:44,494 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2023-11-29 02:12:44,494 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 328 flow [2023-11-29 02:12:44,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 02:12:44,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:44,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:44,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:12:44,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:44,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:44,497 INFO L85 PathProgramCache]: Analyzing trace with hash -305209625, now seen corresponding path program 1 times [2023-11-29 02:12:44,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:44,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738811383] [2023-11-29 02:12:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:44,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:44,820 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 02:12:44,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:44,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738811383] [2023-11-29 02:12:44,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738811383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:44,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:44,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:12:44,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913674259] [2023-11-29 02:12:44,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:12:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:12:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:12:44,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2023-11-29 02:12:44,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states 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 02:12:44,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:44,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2023-11-29 02:12:44,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:45,087 INFO L124 PetriNetUnfolderBase]: 132/492 cut-off events. [2023-11-29 02:12:45,087 INFO L125 PetriNetUnfolderBase]: For 136/144 co-relation queries the response was YES. [2023-11-29 02:12:45,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 492 events. 132/492 cut-off events. For 136/144 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2403 event pairs, 31 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 1021. Up to 218 conditions per place. [2023-11-29 02:12:45,093 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 39 selfloop transitions, 29 changer transitions 7/144 dead transitions. [2023-11-29 02:12:45,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 144 transitions, 618 flow [2023-11-29 02:12:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:12:45,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 02:12:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2023-11-29 02:12:45,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8626373626373627 [2023-11-29 02:12:45,097 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2023-11-29 02:12:45,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2023-11-29 02:12:45,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:45,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2023-11-29 02:12:45,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 02:12:45,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states 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 02:12:45,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states 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 02:12:45,102 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 328 flow. Second operand 6 states and 471 transitions. [2023-11-29 02:12:45,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 144 transitions, 618 flow [2023-11-29 02:12:45,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 144 transitions, 618 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 02:12:45,110 INFO L231 Difference]: Finished difference. Result has 110 places, 133 transitions, 582 flow [2023-11-29 02:12:45,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=582, PETRI_PLACES=110, PETRI_TRANSITIONS=133} [2023-11-29 02:12:45,112 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2023-11-29 02:12:45,112 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 133 transitions, 582 flow [2023-11-29 02:12:45,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states 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 02:12:45,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:45,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:45,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:12:45,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:45,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1574519319, now seen corresponding path program 1 times [2023-11-29 02:12:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:45,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85754] [2023-11-29 02:12:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:45,506 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 02:12:45,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:45,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85754] [2023-11-29 02:12:45,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:45,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:45,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:12:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504637445] [2023-11-29 02:12:45,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:45,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:12:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:45,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:12:45,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:12:45,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 91 [2023-11-29 02:12:45,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 133 transitions, 582 flow. Second operand has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 02:12:45,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:45,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 91 [2023-11-29 02:12:45,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:45,836 INFO L124 PetriNetUnfolderBase]: 88/460 cut-off events. [2023-11-29 02:12:45,836 INFO L125 PetriNetUnfolderBase]: For 190/194 co-relation queries the response was YES. [2023-11-29 02:12:45,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 460 events. 88/460 cut-off events. For 190/194 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2342 event pairs, 7 based on Foata normal form. 2/461 useless extension candidates. Maximal degree in co-relation 866. Up to 83 conditions per place. [2023-11-29 02:12:45,840 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 11 selfloop transitions, 4 changer transitions 16/145 dead transitions. [2023-11-29 02:12:45,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 145 transitions, 662 flow [2023-11-29 02:12:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:12:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 02:12:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 561 transitions. [2023-11-29 02:12:45,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.880690737833595 [2023-11-29 02:12:45,843 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 561 transitions. [2023-11-29 02:12:45,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 561 transitions. [2023-11-29 02:12:45,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:45,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 561 transitions. [2023-11-29 02:12:45,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.14285714285714) internal successors, (561), 7 states have internal predecessors, (561), 0 states have call successors, (0), 0 states 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 02:12:45,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 02:12:45,848 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 02:12:45,849 INFO L175 Difference]: Start difference. First operand has 110 places, 133 transitions, 582 flow. Second operand 7 states and 561 transitions. [2023-11-29 02:12:45,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 145 transitions, 662 flow [2023-11-29 02:12:45,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 145 transitions, 644 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-29 02:12:45,859 INFO L231 Difference]: Finished difference. Result has 119 places, 128 transitions, 572 flow [2023-11-29 02:12:45,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=572, PETRI_PLACES=119, PETRI_TRANSITIONS=128} [2023-11-29 02:12:45,861 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 28 predicate places. [2023-11-29 02:12:45,861 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 128 transitions, 572 flow [2023-11-29 02:12:45,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 02:12:45,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:45,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:45,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:12:45,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:45,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash 363248861, now seen corresponding path program 1 times [2023-11-29 02:12:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672621053] [2023-11-29 02:12:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:46,367 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 02:12:46,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:46,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672621053] [2023-11-29 02:12:46,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672621053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:46,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:46,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:12:46,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703903939] [2023-11-29 02:12:46,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:46,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:12:46,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:46,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:12:46,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:46,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-29 02:12:46,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 128 transitions, 572 flow. Second operand has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 02:12:46,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:46,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-29 02:12:46,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:47,235 INFO L124 PetriNetUnfolderBase]: 129/461 cut-off events. [2023-11-29 02:12:47,235 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2023-11-29 02:12:47,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 461 events. 129/461 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2193 event pairs, 22 based on Foata normal form. 11/468 useless extension candidates. Maximal degree in co-relation 1336. Up to 89 conditions per place. [2023-11-29 02:12:47,240 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 62 selfloop transitions, 32 changer transitions 23/177 dead transitions. [2023-11-29 02:12:47,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 177 transitions, 1114 flow [2023-11-29 02:12:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:12:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 02:12:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 778 transitions. [2023-11-29 02:12:47,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7772227772227772 [2023-11-29 02:12:47,243 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 778 transitions. [2023-11-29 02:12:47,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 778 transitions. [2023-11-29 02:12:47,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:47,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 778 transitions. [2023-11-29 02:12:47,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.72727272727273) internal successors, (778), 11 states have internal predecessors, (778), 0 states have call successors, (0), 0 states 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 02:12:47,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 02:12:47,250 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 02:12:47,250 INFO L175 Difference]: Start difference. First operand has 119 places, 128 transitions, 572 flow. Second operand 11 states and 778 transitions. [2023-11-29 02:12:47,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 177 transitions, 1114 flow [2023-11-29 02:12:47,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 177 transitions, 1063 flow, removed 21 selfloop flow, removed 5 redundant places. [2023-11-29 02:12:47,259 INFO L231 Difference]: Finished difference. Result has 123 places, 129 transitions, 668 flow [2023-11-29 02:12:47,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=668, PETRI_PLACES=123, PETRI_TRANSITIONS=129} [2023-11-29 02:12:47,260 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2023-11-29 02:12:47,261 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 129 transitions, 668 flow [2023-11-29 02:12:47,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 02:12:47,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:47,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:47,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:12:47,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:47,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:47,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2036725150, now seen corresponding path program 1 times [2023-11-29 02:12:47,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:47,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666729979] [2023-11-29 02:12:47,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:47,727 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 02:12:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666729979] [2023-11-29 02:12:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666729979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:47,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:47,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:12:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495127086] [2023-11-29 02:12:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:47,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:12:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:12:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:48,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-29 02:12:48,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 129 transitions, 668 flow. Second operand has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 02:12:48,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:48,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-29 02:12:48,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:48,529 INFO L124 PetriNetUnfolderBase]: 105/405 cut-off events. [2023-11-29 02:12:48,529 INFO L125 PetriNetUnfolderBase]: For 639/661 co-relation queries the response was YES. [2023-11-29 02:12:48,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 405 events. 105/405 cut-off events. For 639/661 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1827 event pairs, 20 based on Foata normal form. 16/419 useless extension candidates. Maximal degree in co-relation 1328. Up to 82 conditions per place. [2023-11-29 02:12:48,533 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 45 selfloop transitions, 28 changer transitions 33/159 dead transitions. [2023-11-29 02:12:48,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 159 transitions, 1140 flow [2023-11-29 02:12:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:12:48,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 02:12:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 702 transitions. [2023-11-29 02:12:48,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2023-11-29 02:12:48,537 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 702 transitions. [2023-11-29 02:12:48,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 702 transitions. [2023-11-29 02:12:48,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:48,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 702 transitions. [2023-11-29 02:12:48,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.2) internal successors, (702), 10 states have internal predecessors, (702), 0 states have call successors, (0), 0 states 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 02:12:48,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states 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 02:12:48,543 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states 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 02:12:48,543 INFO L175 Difference]: Start difference. First operand has 123 places, 129 transitions, 668 flow. Second operand 10 states and 702 transitions. [2023-11-29 02:12:48,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 159 transitions, 1140 flow [2023-11-29 02:12:48,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 159 transitions, 1090 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-11-29 02:12:48,555 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 555 flow [2023-11-29 02:12:48,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=555, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2023-11-29 02:12:48,556 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2023-11-29 02:12:48,556 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 555 flow [2023-11-29 02:12:48,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 02:12:48,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:48,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:48,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:12:48,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:48,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash -157945490, now seen corresponding path program 1 times [2023-11-29 02:12:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:48,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813760347] [2023-11-29 02:12:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:48,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:49,075 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 02:12:49,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:49,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813760347] [2023-11-29 02:12:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813760347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:49,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:12:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424915686] [2023-11-29 02:12:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:49,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:12:49,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:49,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:12:49,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:49,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-29 02:12:49,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 555 flow. Second operand has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 02:12:49,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:49,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-29 02:12:49,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:49,814 INFO L124 PetriNetUnfolderBase]: 49/228 cut-off events. [2023-11-29 02:12:49,814 INFO L125 PetriNetUnfolderBase]: For 423/432 co-relation queries the response was YES. [2023-11-29 02:12:49,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 228 events. 49/228 cut-off events. For 423/432 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 692 event pairs, 11 based on Foata normal form. 10/236 useless extension candidates. Maximal degree in co-relation 755. Up to 40 conditions per place. [2023-11-29 02:12:49,816 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 37 selfloop transitions, 17 changer transitions 21/131 dead transitions. [2023-11-29 02:12:49,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 840 flow [2023-11-29 02:12:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:12:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 02:12:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 761 transitions. [2023-11-29 02:12:49,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602397602397603 [2023-11-29 02:12:49,820 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 761 transitions. [2023-11-29 02:12:49,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 761 transitions. [2023-11-29 02:12:49,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:49,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 761 transitions. [2023-11-29 02:12:49,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.18181818181819) internal successors, (761), 11 states have internal predecessors, (761), 0 states have call successors, (0), 0 states 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 02:12:49,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 02:12:49,826 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 02:12:49,826 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 555 flow. Second operand 11 states and 761 transitions. [2023-11-29 02:12:49,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 840 flow [2023-11-29 02:12:49,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 131 transitions, 725 flow, removed 5 selfloop flow, removed 12 redundant places. [2023-11-29 02:12:49,833 INFO L231 Difference]: Finished difference. Result has 116 places, 100 transitions, 428 flow [2023-11-29 02:12:49,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=428, PETRI_PLACES=116, PETRI_TRANSITIONS=100} [2023-11-29 02:12:49,835 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 25 predicate places. [2023-11-29 02:12:49,835 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 100 transitions, 428 flow [2023-11-29 02:12:49,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 02:12:49,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:49,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:49,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:12:49,836 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:49,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:49,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1346165302, now seen corresponding path program 2 times [2023-11-29 02:12:49,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:49,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823813188] [2023-11-29 02:12:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:49,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:50,318 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 02:12:50,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:50,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823813188] [2023-11-29 02:12:50,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823813188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:50,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:50,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:12:50,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869825782] [2023-11-29 02:12:50,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:50,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:12:50,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:50,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:12:50,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:50,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-29 02:12:50,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 100 transitions, 428 flow. Second operand has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 02:12:50,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:50,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-29 02:12:50,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:51,060 INFO L124 PetriNetUnfolderBase]: 36/197 cut-off events. [2023-11-29 02:12:51,060 INFO L125 PetriNetUnfolderBase]: For 326/331 co-relation queries the response was YES. [2023-11-29 02:12:51,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 197 events. 36/197 cut-off events. For 326/331 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 528 event pairs, 11 based on Foata normal form. 6/201 useless extension candidates. Maximal degree in co-relation 593. Up to 36 conditions per place. [2023-11-29 02:12:51,062 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 25 selfloop transitions, 9 changer transitions 29/118 dead transitions. [2023-11-29 02:12:51,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 118 transitions, 649 flow [2023-11-29 02:12:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:12:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 02:12:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 824 transitions. [2023-11-29 02:12:51,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7545787545787546 [2023-11-29 02:12:51,065 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 824 transitions. [2023-11-29 02:12:51,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 824 transitions. [2023-11-29 02:12:51,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:51,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 824 transitions. [2023-11-29 02:12:51,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 68.66666666666667) internal successors, (824), 12 states have internal predecessors, (824), 0 states have call successors, (0), 0 states 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 02:12:51,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 02:12:51,072 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 02:12:51,072 INFO L175 Difference]: Start difference. First operand has 116 places, 100 transitions, 428 flow. Second operand 12 states and 824 transitions. [2023-11-29 02:12:51,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 118 transitions, 649 flow [2023-11-29 02:12:51,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 606 flow, removed 5 selfloop flow, removed 10 redundant places. [2023-11-29 02:12:51,078 INFO L231 Difference]: Finished difference. Result has 117 places, 86 transitions, 304 flow [2023-11-29 02:12:51,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=304, PETRI_PLACES=117, PETRI_TRANSITIONS=86} [2023-11-29 02:12:51,079 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 26 predicate places. [2023-11-29 02:12:51,079 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 86 transitions, 304 flow [2023-11-29 02:12:51,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 02:12:51,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:12:51,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:51,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:12:51,080 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-29 02:12:51,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1845953226, now seen corresponding path program 3 times [2023-11-29 02:12:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:51,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989295408] [2023-11-29 02:12:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:51,511 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 02:12:51,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989295408] [2023-11-29 02:12:51,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989295408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:51,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:51,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:12:51,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445360674] [2023-11-29 02:12:51,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:51,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:12:51,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:51,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:12:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:51,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-29 02:12:51,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 86 transitions, 304 flow. Second operand has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 02:12:51,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:12:51,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-29 02:12:51,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:12:51,972 INFO L124 PetriNetUnfolderBase]: 16/138 cut-off events. [2023-11-29 02:12:51,972 INFO L125 PetriNetUnfolderBase]: For 142/143 co-relation queries the response was YES. [2023-11-29 02:12:51,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 138 events. 16/138 cut-off events. For 142/143 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 11 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 318. Up to 32 conditions per place. [2023-11-29 02:12:51,973 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2023-11-29 02:12:51,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 90 transitions, 393 flow [2023-11-29 02:12:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:12:51,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 02:12:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 743 transitions. [2023-11-29 02:12:51,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7422577422577422 [2023-11-29 02:12:51,976 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 743 transitions. [2023-11-29 02:12:51,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 743 transitions. [2023-11-29 02:12:51,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:12:51,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 743 transitions. [2023-11-29 02:12:51,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states 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 02:12:51,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 02:12:51,982 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 02:12:51,982 INFO L175 Difference]: Start difference. First operand has 117 places, 86 transitions, 304 flow. Second operand 11 states and 743 transitions. [2023-11-29 02:12:51,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 90 transitions, 393 flow [2023-11-29 02:12:51,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 90 transitions, 348 flow, removed 7 selfloop flow, removed 14 redundant places. [2023-11-29 02:12:51,985 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2023-11-29 02:12:51,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2023-11-29 02:12:51,986 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 12 predicate places. [2023-11-29 02:12:51,986 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2023-11-29 02:12:51,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 02:12:51,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-11-29 02:12:51,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 02:12:51,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-29 02:12:51,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-11-29 02:12:51,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 02:12:51,990 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-11-29 02:12:51,996 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 02:12:51,996 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:12:52,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:12:52 BasicIcfg [2023-11-29 02:12:52,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:12:52,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:12:52,002 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:12:52,002 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:12:52,003 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:12:42" (3/4) ... [2023-11-29 02:12:52,004 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:12:52,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-29 02:12:52,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 02:12:52,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:12:52,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:12:52,098 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:12:52,099 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:12:52,099 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:12:52,100 INFO L158 Benchmark]: Toolchain (without parser) took 10143.07ms. Allocated memory was 157.3MB in the beginning and 232.8MB in the end (delta: 75.5MB). Free memory was 122.6MB in the beginning and 119.1MB in the end (delta: 3.5MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,100 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory was 93.9MB in the beginning and 93.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:12:52,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.43ms. Allocated memory is still 157.3MB. Free memory was 122.6MB in the beginning and 125.6MB in the end (delta: -3.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.66ms. Allocated memory is still 157.3MB. Free memory was 125.6MB in the beginning and 122.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,101 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 157.3MB. Free memory was 122.6MB in the beginning and 121.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,102 INFO L158 Benchmark]: RCFGBuilder took 383.14ms. Allocated memory is still 157.3MB. Free memory was 121.4MB in the beginning and 104.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,102 INFO L158 Benchmark]: TraceAbstraction took 9019.76ms. Allocated memory was 157.3MB in the beginning and 232.8MB in the end (delta: 75.5MB). Free memory was 103.5MB in the beginning and 123.3MB in the end (delta: -19.7MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,102 INFO L158 Benchmark]: Witness Printer took 97.04ms. Allocated memory is still 232.8MB. Free memory was 123.3MB in the beginning and 119.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:12:52,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory was 93.9MB in the beginning and 93.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.43ms. Allocated memory is still 157.3MB. Free memory was 122.6MB in the beginning and 125.6MB in the end (delta: -3.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.66ms. Allocated memory is still 157.3MB. Free memory was 125.6MB in the beginning and 122.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 157.3MB. Free memory was 122.6MB in the beginning and 121.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.14ms. Allocated memory is still 157.3MB. Free memory was 121.4MB in the beginning and 104.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9019.76ms. Allocated memory was 157.3MB in the beginning and 232.8MB in the end (delta: 75.5MB). Free memory was 103.5MB in the beginning and 123.3MB in the end (delta: -19.7MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Witness Printer took 97.04ms. Allocated memory is still 232.8MB. Free memory was 123.3MB in the beginning and 119.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1907 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1554 mSDsluCounter, 1996 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1865 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5204 IncrementalHoareTripleChecker+Invalid, 5317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 131 mSDtfsCounter, 5204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=668occurred in iteration=4, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 3060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 02:12:52,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db205bd9-8856-47a9-a2b7-a1abfe8dd132/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE