./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:05:21,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:05:21,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:05:21,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:05:21,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:05:21,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:05:21,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:05:21,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:05:21,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:05:21,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:05:21,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:05:21,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:05:21,604 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:05:21,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:05:21,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:05:21,607 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:05:21,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:05:21,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:05:21,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:05:21,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:05:21,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:05:21,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:05:21,610 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:05:21,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:05:21,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:05:21,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:05:21,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:05:21,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:05:21,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:05:21,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:05:21,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:21,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:05:21,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:05:21,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:05:21,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:05:21,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:05:21,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:05:21,616 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:05:21,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:05:21,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:05:21,617 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:05:21,617 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_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2023-11-06 23:05:21,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:05:21,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:05:21,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:05:21,951 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:05:21,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:05:21,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2023-11-06 23:05:25,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:05:25,469 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:05:25,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2023-11-06 23:05:25,500 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/data/605b95c9f/70cb811533f746e6b48c756d177070e9/FLAG2346ea4f3 [2023-11-06 23:05:25,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/data/605b95c9f/70cb811533f746e6b48c756d177070e9 [2023-11-06 23:05:25,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:05:25,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:05:25,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:25,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:05:25,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:05:25,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:25" (1/1) ... [2023-11-06 23:05:25,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b1502e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:25, skipping insertion in model container [2023-11-06 23:05:25,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:25" (1/1) ... [2023-11-06 23:05:25,611 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:05:26,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:26,161 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:05:26,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:26,331 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:05:26,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26 WrapperNode [2023-11-06 23:05:26,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:26,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:26,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:05:26,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:05:26,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,421 INFO L138 Inliner]: procedures = 243, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-06 23:05:26,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:26,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:05:26,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:05:26,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:05:26,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:05:26,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:05:26,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:05:26,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:05:26,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (1/1) ... [2023-11-06 23:05:26,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:26,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:26,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:05:26,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:05:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:05:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:05:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 23:05:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:05:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 23:05:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 23:05:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 23:05:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 23:05:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:05:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:05:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:05:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:05:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:05:26,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:05:26,589 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:05:26,824 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:05:26,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:05:27,190 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:05:27,200 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:05:27,200 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 23:05:27,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:27 BoogieIcfgContainer [2023-11-06 23:05:27,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:05:27,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:05:27,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:05:27,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:05:27,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:05:25" (1/3) ... [2023-11-06 23:05:27,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25d0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:27, skipping insertion in model container [2023-11-06 23:05:27,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:26" (2/3) ... [2023-11-06 23:05:27,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25d0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:27, skipping insertion in model container [2023-11-06 23:05:27,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:27" (3/3) ... [2023-11-06 23:05:27,211 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2023-11-06 23:05:27,220 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:05:27,231 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:05:27,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-06 23:05:27,231 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:05:27,342 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 23:05:27,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 206 transitions, 426 flow [2023-11-06 23:05:27,531 INFO L124 PetriNetUnfolderBase]: 11/204 cut-off events. [2023-11-06 23:05:27,531 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:05:27,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 204 events. 11/204 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 362 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 111. Up to 3 conditions per place. [2023-11-06 23:05:27,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 206 transitions, 426 flow [2023-11-06 23:05:27,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 185 transitions, 382 flow [2023-11-06 23:05:27,553 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:05:27,563 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 185 transitions, 382 flow [2023-11-06 23:05:27,566 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 185 transitions, 382 flow [2023-11-06 23:05:27,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 185 transitions, 382 flow [2023-11-06 23:05:27,616 INFO L124 PetriNetUnfolderBase]: 8/185 cut-off events. [2023-11-06 23:05:27,616 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:05:27,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 185 events. 8/185 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 336 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2023-11-06 23:05:27,625 INFO L119 LiptonReduction]: Number of co-enabled transitions 7052 [2023-11-06 23:05:36,205 INFO L134 LiptonReduction]: Checked pairs total: 21365 [2023-11-06 23:05:36,206 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-11-06 23:05:36,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:05:36,229 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@524782b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:05:36,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-06 23:05:36,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:05:36,231 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:05:36,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:05:36,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:36,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:05:36,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:36,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash 735, now seen corresponding path program 1 times [2023-11-06 23:05:36,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:36,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212980637] [2023-11-06 23:05:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:36,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:36,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212980637] [2023-11-06 23:05:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212980637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:36,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:36,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:05:36,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810592230] [2023-11-06 23:05:36,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:36,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:05:36,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:36,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:05:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:05:36,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 357 [2023-11-06 23:05:36,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 130 flow. Second operand has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:36,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:36,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 357 [2023-11-06 23:05:36,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:36,602 INFO L124 PetriNetUnfolderBase]: 205/509 cut-off events. [2023-11-06 23:05:36,602 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-06 23:05:36,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 509 events. 205/509 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2565 event pairs, 141 based on Foata normal form. 33/453 useless extension candidates. Maximal degree in co-relation 768. Up to 332 conditions per place. [2023-11-06 23:05:36,612 INFO L140 encePairwiseOnDemand]: 345/357 looper letters, 23 selfloop transitions, 0 changer transitions 1/47 dead transitions. [2023-11-06 23:05:36,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 154 flow [2023-11-06 23:05:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:05:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:05:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 426 transitions. [2023-11-06 23:05:36,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5966386554621849 [2023-11-06 23:05:36,640 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 426 transitions. [2023-11-06 23:05:36,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 426 transitions. [2023-11-06 23:05:36,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:36,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 426 transitions. [2023-11-06 23:05:36,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 213.0) internal successors, (426), 2 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:36,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:36,660 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:36,662 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 130 flow. Second operand 2 states and 426 transitions. [2023-11-06 23:05:36,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 47 transitions, 154 flow [2023-11-06 23:05:36,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 47 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 23:05:36,669 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 95 flow [2023-11-06 23:05:36,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=95, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2023-11-06 23:05:36,677 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2023-11-06 23:05:36,678 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 95 flow [2023-11-06 23:05:36,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:36,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:36,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:05:36,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:05:36,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:36,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:36,681 INFO L85 PathProgramCache]: Analyzing trace with hash 156377502, now seen corresponding path program 1 times [2023-11-06 23:05:36,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:36,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259184464] [2023-11-06 23:05:36,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:36,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:36,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:36,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259184464] [2023-11-06 23:05:36,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259184464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:36,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:36,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:36,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376875184] [2023-11-06 23:05:36,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:36,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:36,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:36,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:36,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:36,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 357 [2023-11-06 23:05:36,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:36,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:36,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 357 [2023-11-06 23:05:36,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:37,222 INFO L124 PetriNetUnfolderBase]: 827/1604 cut-off events. [2023-11-06 23:05:37,222 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-06 23:05:37,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 1604 events. 827/1604 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8333 event pairs, 264 based on Foata normal form. 0/1454 useless extension candidates. Maximal degree in co-relation 2999. Up to 789 conditions per place. [2023-11-06 23:05:37,234 INFO L140 encePairwiseOnDemand]: 343/357 looper letters, 56 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2023-11-06 23:05:37,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 76 transitions, 289 flow [2023-11-06 23:05:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:05:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2023-11-06 23:05:37,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695611577964519 [2023-11-06 23:05:37,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2023-11-06 23:05:37,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2023-11-06 23:05:37,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:37,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2023-11-06 23:05:37,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,251 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 3 states and 610 transitions. [2023-11-06 23:05:37,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 76 transitions, 289 flow [2023-11-06 23:05:37,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 289 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:05:37,257 INFO L231 Difference]: Finished difference. Result has 50 places, 56 transitions, 183 flow [2023-11-06 23:05:37,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=50, PETRI_TRANSITIONS=56} [2023-11-06 23:05:37,259 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -10 predicate places. [2023-11-06 23:05:37,260 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 56 transitions, 183 flow [2023-11-06 23:05:37,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:37,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:37,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:05:37,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:37,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:37,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1510140431, now seen corresponding path program 1 times [2023-11-06 23:05:37,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:37,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563243718] [2023-11-06 23:05:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:37,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:37,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:37,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563243718] [2023-11-06 23:05:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563243718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:37,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:37,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:37,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285932506] [2023-11-06 23:05:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:37,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:37,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:37,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:37,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:37,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 357 [2023-11-06 23:05:37,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 56 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:37,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 357 [2023-11-06 23:05:37,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:37,722 INFO L124 PetriNetUnfolderBase]: 709/1648 cut-off events. [2023-11-06 23:05:37,722 INFO L125 PetriNetUnfolderBase]: For 168/174 co-relation queries the response was YES. [2023-11-06 23:05:37,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3300 conditions, 1648 events. 709/1648 cut-off events. For 168/174 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 9672 event pairs, 228 based on Foata normal form. 13/1492 useless extension candidates. Maximal degree in co-relation 3295. Up to 720 conditions per place. [2023-11-06 23:05:37,737 INFO L140 encePairwiseOnDemand]: 352/357 looper letters, 39 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2023-11-06 23:05:37,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 72 transitions, 301 flow [2023-11-06 23:05:37,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:05:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2023-11-06 23:05:37,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5667600373482726 [2023-11-06 23:05:37,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2023-11-06 23:05:37,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2023-11-06 23:05:37,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:37,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2023-11-06 23:05:37,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,750 INFO L175 Difference]: Start difference. First operand has 50 places, 56 transitions, 183 flow. Second operand 3 states and 607 transitions. [2023-11-06 23:05:37,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 72 transitions, 301 flow [2023-11-06 23:05:37,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 72 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:05:37,761 INFO L231 Difference]: Finished difference. Result has 52 places, 58 transitions, 187 flow [2023-11-06 23:05:37,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=52, PETRI_TRANSITIONS=58} [2023-11-06 23:05:37,763 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -8 predicate places. [2023-11-06 23:05:37,767 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 58 transitions, 187 flow [2023-11-06 23:05:37,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:37,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:37,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:37,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:05:37,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:37,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:37,769 INFO L85 PathProgramCache]: Analyzing trace with hash -157053583, now seen corresponding path program 1 times [2023-11-06 23:05:37,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:37,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131129431] [2023-11-06 23:05:37,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:37,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:37,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:37,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131129431] [2023-11-06 23:05:37,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131129431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:37,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:37,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:37,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811384390] [2023-11-06 23:05:37,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:37,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:37,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:37,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 357 [2023-11-06 23:05:37,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 58 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 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) [2023-11-06 23:05:37,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:37,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 357 [2023-11-06 23:05:37,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:38,215 INFO L124 PetriNetUnfolderBase]: 945/1976 cut-off events. [2023-11-06 23:05:38,215 INFO L125 PetriNetUnfolderBase]: For 336/350 co-relation queries the response was YES. [2023-11-06 23:05:38,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 1976 events. 945/1976 cut-off events. For 336/350 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 11279 event pairs, 492 based on Foata normal form. 0/1785 useless extension candidates. Maximal degree in co-relation 4306. Up to 1314 conditions per place. [2023-11-06 23:05:38,231 INFO L140 encePairwiseOnDemand]: 350/357 looper letters, 44 selfloop transitions, 10 changer transitions 1/77 dead transitions. [2023-11-06 23:05:38,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 77 transitions, 350 flow [2023-11-06 23:05:38,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:05:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-11-06 23:05:38,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5583566760037348 [2023-11-06 23:05:38,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-11-06 23:05:38,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-11-06 23:05:38,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:38,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-11-06 23:05:38,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,243 INFO L175 Difference]: Start difference. First operand has 52 places, 58 transitions, 187 flow. Second operand 3 states and 598 transitions. [2023-11-06 23:05:38,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 77 transitions, 350 flow [2023-11-06 23:05:38,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 77 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:05:38,249 INFO L231 Difference]: Finished difference. Result has 54 places, 66 transitions, 267 flow [2023-11-06 23:05:38,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=54, PETRI_TRANSITIONS=66} [2023-11-06 23:05:38,251 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-11-06 23:05:38,251 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 66 transitions, 267 flow [2023-11-06 23:05:38,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 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) [2023-11-06 23:05:38,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:38,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:38,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:05:38,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:38,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:38,254 INFO L85 PathProgramCache]: Analyzing trace with hash 88870591, now seen corresponding path program 1 times [2023-11-06 23:05:38,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:38,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567154771] [2023-11-06 23:05:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:38,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567154771] [2023-11-06 23:05:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567154771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:38,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:38,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:05:38,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723368697] [2023-11-06 23:05:38,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:38,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:38,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:38,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:38,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:38,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 357 [2023-11-06 23:05:38,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 66 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:38,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 357 [2023-11-06 23:05:38,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:38,633 INFO L124 PetriNetUnfolderBase]: 233/652 cut-off events. [2023-11-06 23:05:38,633 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-11-06 23:05:38,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 652 events. 233/652 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3177 event pairs, 70 based on Foata normal form. 24/638 useless extension candidates. Maximal degree in co-relation 1383. Up to 239 conditions per place. [2023-11-06 23:05:38,638 INFO L140 encePairwiseOnDemand]: 349/357 looper letters, 26 selfloop transitions, 8 changer transitions 1/54 dead transitions. [2023-11-06 23:05:38,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 239 flow [2023-11-06 23:05:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:05:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2023-11-06 23:05:38,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5536881419234361 [2023-11-06 23:05:38,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 593 transitions. [2023-11-06 23:05:38,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 593 transitions. [2023-11-06 23:05:38,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:38,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 593 transitions. [2023-11-06 23:05:38,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,650 INFO L175 Difference]: Start difference. First operand has 54 places, 66 transitions, 267 flow. Second operand 3 states and 593 transitions. [2023-11-06 23:05:38,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 239 flow [2023-11-06 23:05:38,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 209 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-11-06 23:05:38,655 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 135 flow [2023-11-06 23:05:38,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2023-11-06 23:05:38,659 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2023-11-06 23:05:38,659 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 135 flow [2023-11-06 23:05:38,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:38,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:38,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:05:38,661 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:38,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:38,661 INFO L85 PathProgramCache]: Analyzing trace with hash -8467751, now seen corresponding path program 1 times [2023-11-06 23:05:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:38,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568611593] [2023-11-06 23:05:38,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:38,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:38,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:38,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568611593] [2023-11-06 23:05:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568611593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:38,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:38,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900913875] [2023-11-06 23:05:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:38,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:38,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 357 [2023-11-06 23:05:38,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:38,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 357 [2023-11-06 23:05:38,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:38,916 INFO L124 PetriNetUnfolderBase]: 209/565 cut-off events. [2023-11-06 23:05:38,916 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 23:05:38,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 565 events. 209/565 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2646 event pairs, 148 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 1153. Up to 344 conditions per place. [2023-11-06 23:05:38,920 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 26 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-11-06 23:05:38,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 198 flow [2023-11-06 23:05:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:05:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 577 transitions. [2023-11-06 23:05:38,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387488328664799 [2023-11-06 23:05:38,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 577 transitions. [2023-11-06 23:05:38,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 577 transitions. [2023-11-06 23:05:38,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:38,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 577 transitions. [2023-11-06 23:05:38,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,934 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 135 flow. Second operand 3 states and 577 transitions. [2023-11-06 23:05:38,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 198 flow [2023-11-06 23:05:38,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 48 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:05:38,937 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 129 flow [2023-11-06 23:05:38,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2023-11-06 23:05:38,940 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2023-11-06 23:05:38,941 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 129 flow [2023-11-06 23:05:38,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:38,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:38,942 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] [2023-11-06 23:05:38,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:05:38,942 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-06 23:05:38,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:38,943 INFO L85 PathProgramCache]: Analyzing trace with hash -482952500, now seen corresponding path program 1 times [2023-11-06 23:05:38,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:38,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168847502] [2023-11-06 23:05:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:38,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:39,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:39,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:39,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168847502] [2023-11-06 23:05:39,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168847502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:39,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:39,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:39,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208144644] [2023-11-06 23:05:39,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:39,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:39,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:39,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:39,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 357 [2023-11-06 23:05:39,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:39,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:39,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 357 [2023-11-06 23:05:39,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:39,213 INFO L124 PetriNetUnfolderBase]: 285/672 cut-off events. [2023-11-06 23:05:39,213 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-11-06 23:05:39,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 672 events. 285/672 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2964 event pairs, 215 based on Foata normal form. 0/665 useless extension candidates. Maximal degree in co-relation 1397. Up to 499 conditions per place. [2023-11-06 23:05:39,215 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2023-11-06 23:05:39,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 206 flow [2023-11-06 23:05:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:05:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-11-06 23:05:39,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5462184873949579 [2023-11-06 23:05:39,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-11-06 23:05:39,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-11-06 23:05:39,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:39,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-11-06 23:05:39,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:39,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:39,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:39,226 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 129 flow. Second operand 3 states and 585 transitions. [2023-11-06 23:05:39,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 206 flow [2023-11-06 23:05:39,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:05:39,228 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-11-06 23:05:39,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-11-06 23:05:39,231 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -14 predicate places. [2023-11-06 23:05:39,231 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-11-06 23:05:39,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:39,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2023-11-06 23:05:39,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2023-11-06 23:05:39,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2023-11-06 23:05:39,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2023-11-06 23:05:39,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2023-11-06 23:05:39,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2023-11-06 23:05:39,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2023-11-06 23:05:39,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2023-11-06 23:05:39,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2023-11-06 23:05:39,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2023-11-06 23:05:39,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2023-11-06 23:05:39,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2023-11-06 23:05:39,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2023-11-06 23:05:39,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2023-11-06 23:05:39,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2023-11-06 23:05:39,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2023-11-06 23:05:39,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2023-11-06 23:05:39,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 30 remaining) [2023-11-06 23:05:39,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 30 remaining) [2023-11-06 23:05:39,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2023-11-06 23:05:39,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2023-11-06 23:05:39,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2023-11-06 23:05:39,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2023-11-06 23:05:39,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2023-11-06 23:05:39,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2023-11-06 23:05:39,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2023-11-06 23:05:39,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2023-11-06 23:05:39,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2023-11-06 23:05:39,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2023-11-06 23:05:39,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2023-11-06 23:05:39,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:05:39,247 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:39,254 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 23:05:39,254 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:05:39,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:05:39 BasicIcfg [2023-11-06 23:05:39,262 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:05:39,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:05:39,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:05:39,263 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:05:39,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:27" (3/4) ... [2023-11-06 23:05:39,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:05:39,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 23:05:39,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 23:05:39,276 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-06 23:05:39,277 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 23:05:39,277 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:05:39,277 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:05:39,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:05:39,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:05:39,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:05:39,346 INFO L158 Benchmark]: Toolchain (without parser) took 13816.93ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 117.2MB in the beginning and 158.0MB in the end (delta: -40.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,346 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:05:39,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.59ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 90.0MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.45ms. Allocated memory is still 163.6MB. Free memory was 90.0MB in the beginning and 87.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,347 INFO L158 Benchmark]: Boogie Preprocessor took 68.00ms. Allocated memory is still 163.6MB. Free memory was 87.4MB in the beginning and 85.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,348 INFO L158 Benchmark]: RCFGBuilder took 711.19ms. Allocated memory is still 163.6MB. Free memory was 85.2MB in the beginning and 119.6MB in the end (delta: -34.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,348 INFO L158 Benchmark]: TraceAbstraction took 12057.28ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 118.3MB in the beginning and 162.2MB in the end (delta: -43.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,348 INFO L158 Benchmark]: Witness Printer took 82.86ms. Allocated memory is still 255.9MB. Free memory was 162.2MB in the beginning and 158.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:05:39,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.59ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 90.0MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.45ms. Allocated memory is still 163.6MB. Free memory was 90.0MB in the beginning and 87.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.00ms. Allocated memory is still 163.6MB. Free memory was 87.4MB in the beginning and 85.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 711.19ms. Allocated memory is still 163.6MB. Free memory was 85.2MB in the beginning and 119.6MB in the end (delta: -34.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12057.28ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 118.3MB in the beginning and 162.2MB in the end (delta: -43.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * Witness Printer took 82.86ms. Allocated memory is still 255.9MB. Free memory was 162.2MB in the beginning and 158.0MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6s, 184 PlacesBefore, 60 PlacesAfterwards, 185 TransitionsBefore, 59 TransitionsAfterwards, 7052 CoEnabledTransitionPairs, 8 FixpointIterations, 72 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 151 TotalNumberOfCompositions, 21365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9528, independent: 9052, independent conditional: 0, independent unconditional: 9052, dependent: 476, dependent conditional: 0, dependent unconditional: 476, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3582, independent: 3527, independent conditional: 0, independent unconditional: 3527, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9528, independent: 5525, independent conditional: 0, independent unconditional: 5525, dependent: 421, dependent conditional: 0, dependent unconditional: 421, unknown: 3582, unknown conditional: 0, unknown unconditional: 3582] , Statistics on independence cache: Total cache size (in pairs): 382, Positive cache size: 353, Positive conditional cache size: 0, Positive unconditional cache size: 353, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 880]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 894]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 903]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 908]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 909]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 915]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 916]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 917]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 918]: 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 5 procedures, 284 locations, 30 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: 11.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 494 IncrementalHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 74 mSDtfsCounter, 494 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 23:05:39,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40418de0-886f-4e87-a21d-56cecbd1de4c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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