./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:57,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:57,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:16:57,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:57,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:57,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:57,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:57,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:57,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:16:57,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:16:57,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:57,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:57,594 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:57,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:57,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:16:57,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:57,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:57,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:57,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:57,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:16:57,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:16:57,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:16:57,599 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:16:57,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:57,600 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:57,600 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:57,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:57,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:57,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:57,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:57,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:16:57,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:57,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:57,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:16:57,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:16:57,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:57,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:16:57,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:16:57,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:16:57,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:16:57,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:16:57,607 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_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca [2024-10-31 22:16:57,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:57,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:57,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:57,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:57,942 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:57,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i Unable to find full path for "g++" [2024-10-31 22:17:00,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:00,611 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:00,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i [2024-10-31 22:17:00,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/data/51ce0433b/9cba233146d74afb95db45aa82e2e0f1/FLAG9fcd7a39b [2024-10-31 22:17:00,660 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/data/51ce0433b/9cba233146d74afb95db45aa82e2e0f1 [2024-10-31 22:17:00,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:00,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:00,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:00,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:00,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:00,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:00" (1/1) ... [2024-10-31 22:17:00,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5060aa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:00, skipping insertion in model container [2024-10-31 22:17:00,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:00" (1/1) ... [2024-10-31 22:17:00,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:01,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:01,298 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:01,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:01,421 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:01,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01 WrapperNode [2024-10-31 22:17:01,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:01,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:01,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:01,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:01,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,467 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-10-31 22:17:01,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:01,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:01,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:01,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:01,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:01,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:01,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:01,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:01,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (1/1) ... [2024-10-31 22:17:01,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:01,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:01,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:17:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:17:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:17:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:17:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:17:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:17:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:17:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:17:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:17:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:01,592 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:17:01,771 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:01,774 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:02,032 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:17:02,032 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:02,052 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:02,053 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:17:02,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:02 BoogieIcfgContainer [2024-10-31 22:17:02,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:02,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:02,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:02,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:02,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:00" (1/3) ... [2024-10-31 22:17:02,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320a9825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:02, skipping insertion in model container [2024-10-31 22:17:02,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:01" (2/3) ... [2024-10-31 22:17:02,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320a9825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:02, skipping insertion in model container [2024-10-31 22:17:02,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:02" (3/3) ... [2024-10-31 22:17:02,062 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race.i [2024-10-31 22:17:02,086 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:02,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 22:17:02,086 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:17:02,143 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:17:02,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 91 transitions, 189 flow [2024-10-31 22:17:02,236 INFO L124 PetriNetUnfolderBase]: 6/125 cut-off events. [2024-10-31 22:17:02,237 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:17:02,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 125 events. 6/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-10-31 22:17:02,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 91 transitions, 189 flow [2024-10-31 22:17:02,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 189 flow [2024-10-31 22:17:02,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:02,277 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30dd631, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:02,277 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 22:17:02,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:17:02,305 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:17:02,305 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:02,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:02,306 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:02,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:17:02,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:02,317 INFO L85 PathProgramCache]: Analyzing trace with hash 637167217, now seen corresponding path program 1 times [2024-10-31 22:17:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:02,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276994822] [2024-10-31 22:17:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:02,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276994822] [2024-10-31 22:17:02,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276994822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:02,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:02,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:02,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540456990] [2024-10-31 22:17:02,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:02,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:02,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:02,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:02,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2024-10-31 22:17:02,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:02,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:02,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2024-10-31 22:17:02,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:02,764 INFO L124 PetriNetUnfolderBase]: 8/163 cut-off events. [2024-10-31 22:17:02,764 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-31 22:17:02,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 163 events. 8/163 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 414 event pairs, 1 based on Foata normal form. 8/154 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-10-31 22:17:02,767 INFO L140 encePairwiseOnDemand]: 84/91 looper letters, 8 selfloop transitions, 3 changer transitions 2/92 dead transitions. [2024-10-31 22:17:02,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 215 flow [2024-10-31 22:17:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:02,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-10-31 22:17:02,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9377289377289377 [2024-10-31 22:17:02,785 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 189 flow. Second operand 3 states and 256 transitions. [2024-10-31 22:17:02,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 215 flow [2024-10-31 22:17:02,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 215 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:02,796 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 203 flow [2024-10-31 22:17:02,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-10-31 22:17:02,805 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-10-31 22:17:02,805 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 203 flow [2024-10-31 22:17:02,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:02,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:02,806 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:02,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:17:02,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:17:02,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:02,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1740217746, now seen corresponding path program 1 times [2024-10-31 22:17:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758855768] [2024-10-31 22:17:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:03,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:03,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758855768] [2024-10-31 22:17:03,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758855768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:03,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:03,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:03,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207443025] [2024-10-31 22:17:03,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:03,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:03,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:03,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:03,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:03,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-10-31 22:17:03,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:03,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:03,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-10-31 22:17:03,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:03,976 INFO L124 PetriNetUnfolderBase]: 31/245 cut-off events. [2024-10-31 22:17:03,976 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:17:03,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 245 events. 31/245 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1068 event pairs, 11 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 277. Up to 62 conditions per place. [2024-10-31 22:17:03,979 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 24 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2024-10-31 22:17:03,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 275 flow [2024-10-31 22:17:03,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:03,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-10-31 22:17:03,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-10-31 22:17:03,983 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 203 flow. Second operand 6 states and 426 transitions. [2024-10-31 22:17:03,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 275 flow [2024-10-31 22:17:03,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 96 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:03,993 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 205 flow [2024-10-31 22:17:03,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2024-10-31 22:17:03,994 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-10-31 22:17:03,995 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 205 flow [2024-10-31 22:17:03,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:03,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:03,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:03,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:17:03,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:17:03,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:03,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2045412567, now seen corresponding path program 1 times [2024-10-31 22:17:04,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:04,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391609997] [2024-10-31 22:17:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:04,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:04,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:04,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391609997] [2024-10-31 22:17:04,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391609997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:04,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:04,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:04,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24383036] [2024-10-31 22:17:04,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:04,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:04,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:04,319 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2024-10-31 22:17:04,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:04,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:04,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2024-10-31 22:17:04,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:04,421 INFO L124 PetriNetUnfolderBase]: 17/232 cut-off events. [2024-10-31 22:17:04,421 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:17:04,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 232 events. 17/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 805 event pairs, 1 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 227. Up to 49 conditions per place. [2024-10-31 22:17:04,424 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 15 selfloop transitions, 2 changer transitions 5/95 dead transitions. [2024-10-31 22:17:04,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 263 flow [2024-10-31 22:17:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2024-10-31 22:17:04,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8443223443223443 [2024-10-31 22:17:04,430 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 205 flow. Second operand 6 states and 461 transitions. [2024-10-31 22:17:04,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 263 flow [2024-10-31 22:17:04,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 95 transitions, 253 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:17:04,437 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 213 flow [2024-10-31 22:17:04,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-10-31 22:17:04,439 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2024-10-31 22:17:04,440 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 213 flow [2024-10-31 22:17:04,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:04,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:04,441 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:04,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:17:04,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:17:04,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:04,443 INFO L85 PathProgramCache]: Analyzing trace with hash 79107010, now seen corresponding path program 1 times [2024-10-31 22:17:04,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:04,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678727648] [2024-10-31 22:17:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:04,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:04,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:04,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678727648] [2024-10-31 22:17:04,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678727648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:04,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:04,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:04,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168922629] [2024-10-31 22:17:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:04,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:04,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:04,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2024-10-31 22:17:04,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:04,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:04,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2024-10-31 22:17:04,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:04,561 INFO L124 PetriNetUnfolderBase]: 5/169 cut-off events. [2024-10-31 22:17:04,561 INFO L125 PetriNetUnfolderBase]: For 19/32 co-relation queries the response was YES. [2024-10-31 22:17:04,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 169 events. 5/169 cut-off events. For 19/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 475 event pairs, 3 based on Foata normal form. 1/160 useless extension candidates. Maximal degree in co-relation 189. Up to 25 conditions per place. [2024-10-31 22:17:04,563 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 8 selfloop transitions, 4 changer transitions 3/91 dead transitions. [2024-10-31 22:17:04,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 249 flow [2024-10-31 22:17:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:04,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-10-31 22:17:04,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084249084249084 [2024-10-31 22:17:04,565 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 213 flow. Second operand 3 states and 248 transitions. [2024-10-31 22:17:04,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 249 flow [2024-10-31 22:17:04,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 235 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-31 22:17:04,568 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 221 flow [2024-10-31 22:17:04,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2024-10-31 22:17:04,569 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-10-31 22:17:04,570 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 221 flow [2024-10-31 22:17:04,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:04,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:04,570 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:04,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:17:04,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:17:04,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 42510031, now seen corresponding path program 1 times [2024-10-31 22:17:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:04,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832328321] [2024-10-31 22:17:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:04,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:04,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:04,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832328321] [2024-10-31 22:17:04,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832328321] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:17:04,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60004765] [2024-10-31 22:17:04,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:04,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:17:04,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:04,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:17:04,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:17:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:04,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:17:04,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:17:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:04,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:17:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:05,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60004765] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:17:05,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:17:05,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-10-31 22:17:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092513786] [2024-10-31 22:17:05,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:17:05,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:17:05,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:05,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:17:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:17:05,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2024-10-31 22:17:05,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 221 flow. Second operand has 11 states, 11 states have (on average 70.9090909090909) internal successors, (780), 11 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:05,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:05,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2024-10-31 22:17:05,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:05,837 INFO L124 PetriNetUnfolderBase]: 21/198 cut-off events. [2024-10-31 22:17:05,837 INFO L125 PetriNetUnfolderBase]: For 23/27 co-relation queries the response was YES. [2024-10-31 22:17:05,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 198 events. 21/198 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 781 event pairs, 1 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 263. Up to 14 conditions per place. [2024-10-31 22:17:05,839 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 18 selfloop transitions, 9 changer transitions 4/90 dead transitions. [2024-10-31 22:17:05,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 284 flow [2024-10-31 22:17:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:17:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:17:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 653 transitions. [2024-10-31 22:17:05,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7973137973137974 [2024-10-31 22:17:05,843 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 221 flow. Second operand 9 states and 653 transitions. [2024-10-31 22:17:05,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 284 flow [2024-10-31 22:17:05,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:05,848 INFO L231 Difference]: Finished difference. Result has 89 places, 75 transitions, 202 flow [2024-10-31 22:17:05,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2024-10-31 22:17:05,851 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -1 predicate places. [2024-10-31 22:17:05,852 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 202 flow [2024-10-31 22:17:05,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 70.9090909090909) internal successors, (780), 11 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:05,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:05,853 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:05,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:17:06,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:17:06,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:17:06,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2106051217, now seen corresponding path program 1 times [2024-10-31 22:17:06,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:06,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079804824] [2024-10-31 22:17:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:06,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:06,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:17:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:06,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:17:06,121 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:17:06,122 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-31 22:17:06,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-10-31 22:17:06,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-10-31 22:17:06,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-10-31 22:17:06,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-10-31 22:17:06,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-10-31 22:17:06,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:17:06,126 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:17:06,129 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:17:06,129 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:17:06,148 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:17:06,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions, 234 flow [2024-10-31 22:17:06,180 INFO L124 PetriNetUnfolderBase]: 11/212 cut-off events. [2024-10-31 22:17:06,180 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:17:06,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 212 events. 11/212 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 446 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 127. Up to 8 conditions per place. [2024-10-31 22:17:06,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 109 transitions, 234 flow [2024-10-31 22:17:06,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 234 flow [2024-10-31 22:17:06,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:06,185 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30dd631, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:06,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:17:06,190 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:17:06,191 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:17:06,191 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:06,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:06,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:06,192 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:17:06,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:06,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1540354543, now seen corresponding path program 1 times [2024-10-31 22:17:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:06,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319566651] [2024-10-31 22:17:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:06,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:06,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:06,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319566651] [2024-10-31 22:17:06,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319566651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:06,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:06,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:06,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920493009] [2024-10-31 22:17:06,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:06,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:06,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:06,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:06,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 109 [2024-10-31 22:17:06,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:06,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:06,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 109 [2024-10-31 22:17:06,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:06,386 INFO L124 PetriNetUnfolderBase]: 119/731 cut-off events. [2024-10-31 22:17:06,386 INFO L125 PetriNetUnfolderBase]: For 54/78 co-relation queries the response was YES. [2024-10-31 22:17:06,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 731 events. 119/731 cut-off events. For 54/78 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4271 event pairs, 50 based on Foata normal form. 36/682 useless extension candidates. Maximal degree in co-relation 749. Up to 139 conditions per place. [2024-10-31 22:17:06,393 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 16 selfloop transitions, 4 changer transitions 1/113 dead transitions. [2024-10-31 22:17:06,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 282 flow [2024-10-31 22:17:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-10-31 22:17:06,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2024-10-31 22:17:06,395 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 234 flow. Second operand 3 states and 303 transitions. [2024-10-31 22:17:06,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 282 flow [2024-10-31 22:17:06,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:06,399 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 256 flow [2024-10-31 22:17:06,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2024-10-31 22:17:06,400 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2024-10-31 22:17:06,400 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 256 flow [2024-10-31 22:17:06,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:06,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:06,401 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:06,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:17:06,401 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:17:06,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1300220009, now seen corresponding path program 1 times [2024-10-31 22:17:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950816090] [2024-10-31 22:17:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:06,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:06,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950816090] [2024-10-31 22:17:06,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950816090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:06,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:06,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:06,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626641845] [2024-10-31 22:17:06,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:06,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:06,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:06,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:06,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2024-10-31 22:17:06,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:06,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:06,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2024-10-31 22:17:06,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:06,838 INFO L124 PetriNetUnfolderBase]: 189/1195 cut-off events. [2024-10-31 22:17:06,838 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-10-31 22:17:06,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1195 events. 189/1195 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8575 event pairs, 131 based on Foata normal form. 1/1096 useless extension candidates. Maximal degree in co-relation 1094. Up to 314 conditions per place. [2024-10-31 22:17:06,849 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 20 selfloop transitions, 2 changer transitions 5/116 dead transitions. [2024-10-31 22:17:06,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 326 flow [2024-10-31 22:17:06,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2024-10-31 22:17:06,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8409785932721713 [2024-10-31 22:17:06,852 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 256 flow. Second operand 6 states and 550 transitions. [2024-10-31 22:17:06,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 326 flow [2024-10-31 22:17:06,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:06,857 INFO L231 Difference]: Finished difference. Result has 119 places, 109 transitions, 270 flow [2024-10-31 22:17:06,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=119, PETRI_TRANSITIONS=109} [2024-10-31 22:17:06,859 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-10-31 22:17:06,863 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 109 transitions, 270 flow [2024-10-31 22:17:06,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:06,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:06,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:06,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:17:06,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:17:06,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1605414830, now seen corresponding path program 1 times [2024-10-31 22:17:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:06,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102330601] [2024-10-31 22:17:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:07,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:07,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102330601] [2024-10-31 22:17:07,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102330601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:07,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:07,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:07,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802973299] [2024-10-31 22:17:07,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:07,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:07,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:07,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:07,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:07,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2024-10-31 22:17:07,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 109 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:07,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:07,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2024-10-31 22:17:07,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:07,656 INFO L124 PetriNetUnfolderBase]: 298/1282 cut-off events. [2024-10-31 22:17:07,656 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-10-31 22:17:07,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2084 conditions, 1282 events. 298/1282 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9634 event pairs, 130 based on Foata normal form. 0/1183 useless extension candidates. Maximal degree in co-relation 959. Up to 371 conditions per place. [2024-10-31 22:17:07,699 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 37 selfloop transitions, 5 changer transitions 0/124 dead transitions. [2024-10-31 22:17:07,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 124 transitions, 384 flow [2024-10-31 22:17:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2024-10-31 22:17:07,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7981651376146789 [2024-10-31 22:17:07,702 INFO L175 Difference]: Start difference. First operand has 119 places, 109 transitions, 270 flow. Second operand 6 states and 522 transitions. [2024-10-31 22:17:07,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 124 transitions, 384 flow [2024-10-31 22:17:07,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 372 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:17:07,709 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 266 flow [2024-10-31 22:17:07,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2024-10-31 22:17:07,711 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2024-10-31 22:17:07,712 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 266 flow [2024-10-31 22:17:07,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:07,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:07,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:07,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:17:07,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:17:07,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:07,714 INFO L85 PathProgramCache]: Analyzing trace with hash -55830766, now seen corresponding path program 1 times [2024-10-31 22:17:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:07,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886413150] [2024-10-31 22:17:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:07,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886413150] [2024-10-31 22:17:07,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886413150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:07,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:07,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:07,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565954723] [2024-10-31 22:17:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:07,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:07,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:07,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:07,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-10-31 22:17:07,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:07,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:07,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-10-31 22:17:07,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:08,000 INFO L124 PetriNetUnfolderBase]: 170/1036 cut-off events. [2024-10-31 22:17:08,000 INFO L125 PetriNetUnfolderBase]: For 196/323 co-relation queries the response was YES. [2024-10-31 22:17:08,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1036 events. 170/1036 cut-off events. For 196/323 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7374 event pairs, 74 based on Foata normal form. 4/903 useless extension candidates. Maximal degree in co-relation 670. Up to 268 conditions per place. [2024-10-31 22:17:08,009 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2024-10-31 22:17:08,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 350 flow [2024-10-31 22:17:08,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-10-31 22:17:08,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-10-31 22:17:08,011 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 266 flow. Second operand 3 states and 297 transitions. [2024-10-31 22:17:08,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 350 flow [2024-10-31 22:17:08,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:17:08,014 INFO L231 Difference]: Finished difference. Result has 115 places, 113 transitions, 312 flow [2024-10-31 22:17:08,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=115, PETRI_TRANSITIONS=113} [2024-10-31 22:17:08,016 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2024-10-31 22:17:08,016 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 113 transitions, 312 flow [2024-10-31 22:17:08,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:08,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:08,017 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:08,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:17:08,018 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:17:08,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:08,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2098394380, now seen corresponding path program 1 times [2024-10-31 22:17:08,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:08,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351051248] [2024-10-31 22:17:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:08,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:08,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:08,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:08,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351051248] [2024-10-31 22:17:08,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351051248] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:17:08,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67970375] [2024-10-31 22:17:08,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:08,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:17:08,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:08,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:17:08,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:17:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:08,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:17:08,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:17:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:08,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:17:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:08,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67970375] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:17:08,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:17:08,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-10-31 22:17:08,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281710704] [2024-10-31 22:17:08,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:17:08,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:17:08,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:08,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:17:08,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:17:08,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 109 [2024-10-31 22:17:08,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 312 flow. Second operand has 11 states, 11 states have (on average 84.9090909090909) internal successors, (934), 11 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:08,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:08,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 109 [2024-10-31 22:17:08,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:09,320 INFO L124 PetriNetUnfolderBase]: 338/1629 cut-off events. [2024-10-31 22:17:09,321 INFO L125 PetriNetUnfolderBase]: For 249/289 co-relation queries the response was YES. [2024-10-31 22:17:09,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2689 conditions, 1629 events. 338/1629 cut-off events. For 249/289 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 12949 event pairs, 39 based on Foata normal form. 0/1454 useless extension candidates. Maximal degree in co-relation 1415. Up to 430 conditions per place. [2024-10-31 22:17:09,332 INFO L140 encePairwiseOnDemand]: 98/109 looper letters, 40 selfloop transitions, 12 changer transitions 2/143 dead transitions. [2024-10-31 22:17:09,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 143 transitions, 482 flow [2024-10-31 22:17:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:17:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:17:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 885 transitions. [2024-10-31 22:17:09,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8119266055045872 [2024-10-31 22:17:09,335 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 312 flow. Second operand 10 states and 885 transitions. [2024-10-31 22:17:09,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 143 transitions, 482 flow [2024-10-31 22:17:09,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 143 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:09,341 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 376 flow [2024-10-31 22:17:09,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=376, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2024-10-31 22:17:09,342 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2024-10-31 22:17:09,342 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 376 flow [2024-10-31 22:17:09,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.9090909090909) internal successors, (934), 11 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:09,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:09,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:09,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:17:09,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:17:09,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:17:09,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:09,549 INFO L85 PathProgramCache]: Analyzing trace with hash -582855165, now seen corresponding path program 1 times [2024-10-31 22:17:09,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:09,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702748722] [2024-10-31 22:17:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:09,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:09,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:17:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:09,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:17:09,598 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:17:09,599 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-31 22:17:09,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-31 22:17:09,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-10-31 22:17:09,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-31 22:17:09,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-31 22:17:09,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-31 22:17:09,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-31 22:17:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:17:09,600 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:17:09,650 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-10-31 22:17:09,650 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:17:09,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:17:09 BasicIcfg [2024-10-31 22:17:09,657 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:17:09,657 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:17:09,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:17:09,658 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:17:09,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:02" (3/4) ... [2024-10-31 22:17:09,660 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:17:09,737 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:17:09,737 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:17:09,738 INFO L158 Benchmark]: Toolchain (without parser) took 9073.13ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 100.0MB in the beginning and 164.4MB in the end (delta: -64.4MB). Peak memory consumption was 117.2MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,738 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:17:09,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.38ms. Allocated memory is still 140.5MB. Free memory was 99.6MB in the beginning and 68.9MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.78ms. Allocated memory is still 140.5MB. Free memory was 68.9MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,739 INFO L158 Benchmark]: Boogie Preprocessor took 41.23ms. Allocated memory is still 140.5MB. Free memory was 66.4MB in the beginning and 109.5MB in the end (delta: -43.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,740 INFO L158 Benchmark]: RCFGBuilder took 542.92ms. Allocated memory is still 140.5MB. Free memory was 108.8MB in the beginning and 92.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,740 INFO L158 Benchmark]: TraceAbstraction took 7601.38ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 92.3MB in the beginning and 52.2MB in the end (delta: 40.1MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,740 INFO L158 Benchmark]: Witness Printer took 80.13ms. Allocated memory is still 205.5MB. Free memory was 52.2MB in the beginning and 164.4MB in the end (delta: -112.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:09,742 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.38ms. Allocated memory is still 140.5MB. Free memory was 99.6MB in the beginning and 68.9MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.78ms. Allocated memory is still 140.5MB. Free memory was 68.9MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.23ms. Allocated memory is still 140.5MB. Free memory was 66.4MB in the beginning and 109.5MB in the end (delta: -43.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * RCFGBuilder took 542.92ms. Allocated memory is still 140.5MB. Free memory was 108.8MB in the beginning and 92.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7601.38ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 92.3MB in the beginning and 52.2MB in the end (delta: 40.1MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. * Witness Printer took 80.13ms. Allocated memory is still 205.5MB. Free memory was 52.2MB in the beginning and 164.4MB in the end (delta: -112.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1023]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 int data = 0; VAL [data=0] [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L1028] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_total=1] [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}] [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, data_mutex={1:0}, threads_total=1, tids={-2:0}] [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=1, tids={-2:0}] [L1031] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=1, tids={-2:0}] [L1034] 0 int i = 0; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1034] COND FALSE 0 !(i < threads_total - 1) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1038] 0 return data; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=1, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [1038] and C: data = __VERIFIER_nondet_int() [1023] - UnprovableResult [Line: 1038]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 locations, 6 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: 3.9s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 333 mSDsluCounter, 474 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 458 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 940 IncrementalHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 16 mSDtfsCounter, 940 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 571 SizeOfPredicates, 6 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 122 locations, 7 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: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 471 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 345 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 803 IncrementalHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 70 mSDtfsCounter, 803 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 571 SizeOfPredicates, 6 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:17:09,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23fd424-3d69-4225-b49c-3de99a8d892d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE