./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:37:29,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:37:29,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:37:29,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:37:29,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:37:29,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:37:29,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:37:29,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:37:29,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:37:29,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:37:29,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:37:29,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:37:29,208 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:37:29,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:37:29,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:37:29,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:37:29,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:37:29,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:37:29,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:37:29,212 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:29,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:37:29,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:29,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:37:29,213 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 [2024-11-28 04:37:29,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:37:29,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:37:29,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:37:29,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:37:29,512 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:37:29,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2024-11-28 04:37:32,377 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/data/2bcc7110c/b0f6f704e7c04701a6c81b9270d147fc/FLAG0df8bb532 [2024-11-28 04:37:32,716 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:37:32,716 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2024-11-28 04:37:32,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/data/2bcc7110c/b0f6f704e7c04701a6c81b9270d147fc/FLAG0df8bb532 [2024-11-28 04:37:32,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/data/2bcc7110c/b0f6f704e7c04701a6c81b9270d147fc [2024-11-28 04:37:32,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:37:32,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:37:32,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:37:32,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:37:32,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:37:32,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:32" (1/1) ... [2024-11-28 04:37:32,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58347240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:32, skipping insertion in model container [2024-11-28 04:37:32,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:32" (1/1) ... [2024-11-28 04:37:32,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:37:33,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:37:33,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:37:33,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:37:33,429 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:37:33,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33 WrapperNode [2024-11-28 04:37:33,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:37:33,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:37:33,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:37:33,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:37:33,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,467 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-28 04:37:33,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:37:33,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:37:33,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:37:33,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:37:33,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,490 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:37:33,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:37:33,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:37:33,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:37:33,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (1/1) ... [2024-11-28 04:37:33,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:33,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:33,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:37:33,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:37:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:37:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:37:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-28 04:37:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:37:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:37:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:37:33,575 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:37:33,734 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:37:33,736 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:37:33,996 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:37:33,996 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:37:34,029 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:37:34,031 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:37:34,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:34 BoogieIcfgContainer [2024-11-28 04:37:34,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:37:34,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:37:34,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:37:34,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:37:34,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:37:32" (1/3) ... [2024-11-28 04:37:34,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f70adf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:37:34, skipping insertion in model container [2024-11-28 04:37:34,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:33" (2/3) ... [2024-11-28 04:37:34,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f70adf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:37:34, skipping insertion in model container [2024-11-28 04:37:34,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:34" (3/3) ... [2024-11-28 04:37:34,048 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race.i [2024-11-28 04:37:34,066 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:37:34,068 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-const-race.i that has 2 procedures, 76 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-28 04:37:34,068 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:37:34,157 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:37:34,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 79 transitions, 165 flow [2024-11-28 04:37:34,308 INFO L124 PetriNetUnfolderBase]: 5/114 cut-off events. [2024-11-28 04:37:34,310 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:37:34,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 5/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 220 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-28 04:37:34,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 79 transitions, 165 flow [2024-11-28 04:37:34,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 79 transitions, 165 flow [2024-11-28 04:37:34,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:34,360 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;@44e410d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:34,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 04:37:34,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:34,383 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 04:37:34,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:37:34,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:34,384 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:34,384 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 04:37:34,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:34,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1723894168, now seen corresponding path program 1 times [2024-11-28 04:37:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:34,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922109486] [2024-11-28 04:37:34,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:34,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:34,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:34,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922109486] [2024-11-28 04:37:34,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922109486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:34,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:34,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:34,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115748080] [2024-11-28 04:37:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:34,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:34,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:34,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:34,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:34,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 79 [2024-11-28 04:37:34,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:34,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:34,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 79 [2024-11-28 04:37:34,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:34,982 INFO L124 PetriNetUnfolderBase]: 8/187 cut-off events. [2024-11-28 04:37:34,983 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:37:34,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 187 events. 8/187 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 582 event pairs, 0 based on Foata normal form. 5/172 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2024-11-28 04:37:34,985 INFO L140 encePairwiseOnDemand]: 72/79 looper letters, 10 selfloop transitions, 4 changer transitions 1/81 dead transitions. [2024-11-28 04:37:34,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 199 flow [2024-11-28 04:37:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:34,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2024-11-28 04:37:34,999 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8955696202531646 [2024-11-28 04:37:35,001 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 165 flow. Second operand 4 states and 283 transitions. [2024-11-28 04:37:35,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 199 flow [2024-11-28 04:37:35,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 81 transitions, 199 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:37:35,010 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 173 flow [2024-11-28 04:37:35,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-28 04:37:35,016 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-28 04:37:35,016 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 173 flow [2024-11-28 04:37:35,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:35,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:35,017 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:35,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:37:35,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 04:37:35,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash 482375562, now seen corresponding path program 1 times [2024-11-28 04:37:35,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:35,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537664707] [2024-11-28 04:37:35,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:35,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:35,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:35,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:35,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537664707] [2024-11-28 04:37:35,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537664707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:35,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:35,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:37:35,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029889426] [2024-11-28 04:37:35,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:35,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:35,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:35,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:35,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:35,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 79 [2024-11-28 04:37:35,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:35,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:35,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 79 [2024-11-28 04:37:35,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:36,162 INFO L124 PetriNetUnfolderBase]: 30/231 cut-off events. [2024-11-28 04:37:36,163 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 04:37:36,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 30/231 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 936 event pairs, 11 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 268. Up to 62 conditions per place. [2024-11-28 04:37:36,167 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 25 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2024-11-28 04:37:36,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 247 flow [2024-11-28 04:37:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:37:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:37:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 355 transitions. [2024-11-28 04:37:36,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7489451476793249 [2024-11-28 04:37:36,171 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 173 flow. Second operand 6 states and 355 transitions. [2024-11-28 04:37:36,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 247 flow [2024-11-28 04:37:36,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 239 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:37:36,180 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 173 flow [2024-11-28 04:37:36,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=173, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2024-11-28 04:37:36,182 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2024-11-28 04:37:36,182 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 173 flow [2024-11-28 04:37:36,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:36,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:36,183 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:36,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:37:36,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 04:37:36,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2108367966, now seen corresponding path program 1 times [2024-11-28 04:37:36,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:36,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210207995] [2024-11-28 04:37:36,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:36,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:36,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:36,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210207995] [2024-11-28 04:37:36,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210207995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:36,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:36,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:36,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047622856] [2024-11-28 04:37:36,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:36,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:36,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:36,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:36,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:36,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 79 [2024-11-28 04:37:36,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:36,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:36,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 79 [2024-11-28 04:37:36,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:36,340 INFO L124 PetriNetUnfolderBase]: 6/143 cut-off events. [2024-11-28 04:37:36,340 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-28 04:37:36,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 143 events. 6/143 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 379 event pairs, 4 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 136. Up to 21 conditions per place. [2024-11-28 04:37:36,342 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 9 selfloop transitions, 4 changer transitions 0/79 dead transitions. [2024-11-28 04:37:36,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 205 flow [2024-11-28 04:37:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-11-28 04:37:36,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9071729957805907 [2024-11-28 04:37:36,345 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 173 flow. Second operand 3 states and 215 transitions. [2024-11-28 04:37:36,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 205 flow [2024-11-28 04:37:36,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 195 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:37:36,347 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 193 flow [2024-11-28 04:37:36,348 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-11-28 04:37:36,349 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-28 04:37:36,349 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 193 flow [2024-11-28 04:37:36,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:36,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:36,349 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:36,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:37:36,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 04:37:36,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:36,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1760578690, now seen corresponding path program 1 times [2024-11-28 04:37:36,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:36,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232204129] [2024-11-28 04:37:36,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:36,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:36,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:36,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232204129] [2024-11-28 04:37:36,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232204129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:36,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533283849] [2024-11-28 04:37:36,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:36,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:36,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:36,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:36,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:36,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 79 [2024-11-28 04:37:36,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:36,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:36,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 79 [2024-11-28 04:37:36,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:36,619 INFO L124 PetriNetUnfolderBase]: 2/108 cut-off events. [2024-11-28 04:37:36,619 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:37:36,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 108 events. 2/108 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 3/106 useless extension candidates. Maximal degree in co-relation 83. Up to 7 conditions per place. [2024-11-28 04:37:36,620 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 9 selfloop transitions, 3 changer transitions 7/77 dead transitions. [2024-11-28 04:37:36,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 203 flow [2024-11-28 04:37:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:36,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-28 04:37:36,623 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.879746835443038 [2024-11-28 04:37:36,623 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 193 flow. Second operand 4 states and 278 transitions. [2024-11-28 04:37:36,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 203 flow [2024-11-28 04:37:36,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 77 transitions, 191 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-28 04:37:36,629 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 157 flow [2024-11-28 04:37:36,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-11-28 04:37:36,631 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2024-11-28 04:37:36,631 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 157 flow [2024-11-28 04:37:36,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:36,632 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:36,632 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:36,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:37:36,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 04:37:36,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash -688522302, now seen corresponding path program 1 times [2024-11-28 04:37:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:36,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776561966] [2024-11-28 04:37:36,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:36,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:36,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:36,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776561966] [2024-11-28 04:37:36,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776561966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:36,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:36,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:37:36,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544671722] [2024-11-28 04:37:36,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:36,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:36,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:36,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:36,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:36,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 79 [2024-11-28 04:37:36,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:36,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:36,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 79 [2024-11-28 04:37:36,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:37,034 INFO L124 PetriNetUnfolderBase]: 6/95 cut-off events. [2024-11-28 04:37:37,035 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 04:37:37,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 95 events. 6/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 3/97 useless extension candidates. Maximal degree in co-relation 122. Up to 5 conditions per place. [2024-11-28 04:37:37,037 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 10 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-11-28 04:37:37,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 146 flow [2024-11-28 04:37:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:37:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:37:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 464 transitions. [2024-11-28 04:37:37,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8390596745027125 [2024-11-28 04:37:37,040 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 157 flow. Second operand 7 states and 464 transitions. [2024-11-28 04:37:37,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 146 flow [2024-11-28 04:37:37,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 54 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:37,042 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 111 flow [2024-11-28 04:37:37,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-28 04:37:37,048 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, -20 predicate places. [2024-11-28 04:37:37,048 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 111 flow [2024-11-28 04:37:37,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:37,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:37,049 INFO L206 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] [2024-11-28 04:37:37,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:37:37,049 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 04:37:37,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2001815417, now seen corresponding path program 1 times [2024-11-28 04:37:37,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:37,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981862120] [2024-11-28 04:37:37,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:37,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:37,105 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:37:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:37,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:37:37,157 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:37:37,162 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-28 04:37:37,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-28 04:37:37,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-28 04:37:37,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-28 04:37:37,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-28 04:37:37,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-28 04:37:37,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:37:37,170 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 04:37:37,172 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:37:37,172 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:37:37,204 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:37:37,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 97 transitions, 210 flow [2024-11-28 04:37:37,246 INFO L124 PetriNetUnfolderBase]: 10/203 cut-off events. [2024-11-28 04:37:37,246 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:37:37,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 203 events. 10/203 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 467 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 116. Up to 8 conditions per place. [2024-11-28 04:37:37,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 97 transitions, 210 flow [2024-11-28 04:37:37,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 97 transitions, 210 flow [2024-11-28 04:37:37,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:37,249 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;@44e410d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:37,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 04:37:37,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:37,259 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 04:37:37,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:37:37,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:37,260 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:37,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:37,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2125474056, now seen corresponding path program 1 times [2024-11-28 04:37:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:37,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698588970] [2024-11-28 04:37:37,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698588970] [2024-11-28 04:37:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698588970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:37,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503964586] [2024-11-28 04:37:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:37,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:37,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:37,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:37,411 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-28 04:37:37,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:37,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:37,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-28 04:37:37,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:37,551 INFO L124 PetriNetUnfolderBase]: 72/621 cut-off events. [2024-11-28 04:37:37,551 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-28 04:37:37,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 621 events. 72/621 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3726 event pairs, 20 based on Foata normal form. 16/581 useless extension candidates. Maximal degree in co-relation 215. Up to 106 conditions per place. [2024-11-28 04:37:37,556 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 18 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-28 04:37:37,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 264 flow [2024-11-28 04:37:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2024-11-28 04:37:37,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8917525773195877 [2024-11-28 04:37:37,557 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 210 flow. Second operand 4 states and 346 transitions. [2024-11-28 04:37:37,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 264 flow [2024-11-28 04:37:37,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 264 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:37:37,560 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 222 flow [2024-11-28 04:37:37,561 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2024-11-28 04:37:37,561 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2024-11-28 04:37:37,561 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 222 flow [2024-11-28 04:37:37,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:37,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:37,562 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:37,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:37:37,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:37,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:37,563 INFO L85 PathProgramCache]: Analyzing trace with hash -419486101, now seen corresponding path program 1 times [2024-11-28 04:37:37,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:37,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308607846] [2024-11-28 04:37:37,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:37,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:37,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:37,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308607846] [2024-11-28 04:37:37,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308607846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:37,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:37,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:37:37,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695657025] [2024-11-28 04:37:37,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:37,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:37,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:37,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:37,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:38,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 97 [2024-11-28 04:37:38,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:38,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:38,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 97 [2024-11-28 04:37:38,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:38,351 INFO L124 PetriNetUnfolderBase]: 236/992 cut-off events. [2024-11-28 04:37:38,352 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-28 04:37:38,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 992 events. 236/992 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6904 event pairs, 34 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1204. Up to 313 conditions per place. [2024-11-28 04:37:38,360 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 38 selfloop transitions, 5 changer transitions 0/111 dead transitions. [2024-11-28 04:37:38,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 111 transitions, 338 flow [2024-11-28 04:37:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:37:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:37:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2024-11-28 04:37:38,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7749140893470791 [2024-11-28 04:37:38,363 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 222 flow. Second operand 6 states and 451 transitions. [2024-11-28 04:37:38,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 111 transitions, 338 flow [2024-11-28 04:37:38,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:38,369 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 224 flow [2024-11-28 04:37:38,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2024-11-28 04:37:38,370 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 6 predicate places. [2024-11-28 04:37:38,370 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 224 flow [2024-11-28 04:37:38,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:38,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:38,371 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:38,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:37:38,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:38,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1977314447, now seen corresponding path program 1 times [2024-11-28 04:37:38,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:38,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45578174] [2024-11-28 04:37:38,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:38,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45578174] [2024-11-28 04:37:38,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45578174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:38,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:38,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:38,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132802957] [2024-11-28 04:37:38,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:38,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:38,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:38,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:38,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:38,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-28 04:37:38,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:38,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:38,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-28 04:37:38,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:38,591 INFO L124 PetriNetUnfolderBase]: 113/682 cut-off events. [2024-11-28 04:37:38,591 INFO L125 PetriNetUnfolderBase]: For 95/136 co-relation queries the response was YES. [2024-11-28 04:37:38,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 682 events. 113/682 cut-off events. For 95/136 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4335 event pairs, 73 based on Foata normal form. 3/609 useless extension candidates. Maximal degree in co-relation 734. Up to 182 conditions per place. [2024-11-28 04:37:38,598 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 18 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2024-11-28 04:37:38,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 294 flow [2024-11-28 04:37:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-28 04:37:38,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072164948453608 [2024-11-28 04:37:38,600 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 224 flow. Second operand 3 states and 264 transitions. [2024-11-28 04:37:38,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 294 flow [2024-11-28 04:37:38,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 284 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:37:38,605 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 252 flow [2024-11-28 04:37:38,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2024-11-28 04:37:38,606 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 5 predicate places. [2024-11-28 04:37:38,606 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 252 flow [2024-11-28 04:37:38,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:38,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:38,607 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:38,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:37:38,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:38,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:38,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1029921677, now seen corresponding path program 1 times [2024-11-28 04:37:38,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:38,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993470486] [2024-11-28 04:37:38,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:38,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:38,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993470486] [2024-11-28 04:37:38,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993470486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:38,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:38,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:38,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710876353] [2024-11-28 04:37:38,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:38,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:38,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:38,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:38,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:38,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-28 04:37:38,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:38,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:38,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-28 04:37:38,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:38,894 INFO L124 PetriNetUnfolderBase]: 57/561 cut-off events. [2024-11-28 04:37:38,894 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-28 04:37:38,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 561 events. 57/561 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3017 event pairs, 20 based on Foata normal form. 15/532 useless extension candidates. Maximal degree in co-relation 618. Up to 66 conditions per place. [2024-11-28 04:37:38,900 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 20 selfloop transitions, 4 changer transitions 2/110 dead transitions. [2024-11-28 04:37:38,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 332 flow [2024-11-28 04:37:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:38,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-11-28 04:37:38,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8943298969072165 [2024-11-28 04:37:38,903 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 252 flow. Second operand 4 states and 347 transitions. [2024-11-28 04:37:38,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 332 flow [2024-11-28 04:37:38,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 110 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:38,908 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 258 flow [2024-11-28 04:37:38,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2024-11-28 04:37:38,909 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 7 predicate places. [2024-11-28 04:37:38,909 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 258 flow [2024-11-28 04:37:38,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:38,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:38,910 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:38,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:37:38,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:38,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash 902122098, now seen corresponding path program 1 times [2024-11-28 04:37:38,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:38,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101800591] [2024-11-28 04:37:38,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:38,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:37:39,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:39,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101800591] [2024-11-28 04:37:39,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101800591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:39,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:39,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:37:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464959423] [2024-11-28 04:37:39,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:39,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:39,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:39,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:39,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:39,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 97 [2024-11-28 04:37:39,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:39,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:39,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 97 [2024-11-28 04:37:39,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:39,382 INFO L124 PetriNetUnfolderBase]: 117/892 cut-off events. [2024-11-28 04:37:39,382 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-28 04:37:39,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 892 events. 117/892 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5635 event pairs, 16 based on Foata normal form. 3/814 useless extension candidates. Maximal degree in co-relation 765. Up to 130 conditions per place. [2024-11-28 04:37:39,388 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 24 selfloop transitions, 7 changer transitions 3/116 dead transitions. [2024-11-28 04:37:39,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 116 transitions, 358 flow [2024-11-28 04:37:39,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:37:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:37:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 581 transitions. [2024-11-28 04:37:39,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8556701030927835 [2024-11-28 04:37:39,390 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 258 flow. Second operand 7 states and 581 transitions. [2024-11-28 04:37:39,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 116 transitions, 358 flow [2024-11-28 04:37:39,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 116 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:39,394 INFO L231 Difference]: Finished difference. Result has 112 places, 102 transitions, 282 flow [2024-11-28 04:37:39,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=282, PETRI_PLACES=112, PETRI_TRANSITIONS=102} [2024-11-28 04:37:39,394 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 14 predicate places. [2024-11-28 04:37:39,394 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 102 transitions, 282 flow [2024-11-28 04:37:39,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:39,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:39,395 INFO L206 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] [2024-11-28 04:37:39,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:37:39,396 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:39,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:39,396 INFO L85 PathProgramCache]: Analyzing trace with hash -246347741, now seen corresponding path program 1 times [2024-11-28 04:37:39,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:39,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916437186] [2024-11-28 04:37:39,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:39,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:37:39,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:39,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916437186] [2024-11-28 04:37:39,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916437186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:39,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:39,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:39,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461265682] [2024-11-28 04:37:39,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:39,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:39,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:39,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:39,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:39,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-28 04:37:39,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 102 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:39,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:39,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-28 04:37:39,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:39,578 INFO L124 PetriNetUnfolderBase]: 58/596 cut-off events. [2024-11-28 04:37:39,578 INFO L125 PetriNetUnfolderBase]: For 130/179 co-relation queries the response was YES. [2024-11-28 04:37:39,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 596 events. 58/596 cut-off events. For 130/179 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3432 event pairs, 32 based on Foata normal form. 3/552 useless extension candidates. Maximal degree in co-relation 784. Up to 111 conditions per place. [2024-11-28 04:37:39,582 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 18 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-11-28 04:37:39,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 351 flow [2024-11-28 04:37:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:39,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:39,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-28 04:37:39,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9037800687285223 [2024-11-28 04:37:39,584 INFO L175 Difference]: Start difference. First operand has 112 places, 102 transitions, 282 flow. Second operand 3 states and 263 transitions. [2024-11-28 04:37:39,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 351 flow [2024-11-28 04:37:39,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 341 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 04:37:39,587 INFO L231 Difference]: Finished difference. Result has 113 places, 106 transitions, 318 flow [2024-11-28 04:37:39,587 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=113, PETRI_TRANSITIONS=106} [2024-11-28 04:37:39,588 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 15 predicate places. [2024-11-28 04:37:39,588 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 106 transitions, 318 flow [2024-11-28 04:37:39,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:39,588 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:39,588 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:39,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:37:39,589 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:39,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1278121362, now seen corresponding path program 1 times [2024-11-28 04:37:39,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:39,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851118770] [2024-11-28 04:37:39,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:37:39,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:39,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851118770] [2024-11-28 04:37:39,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851118770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:39,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:39,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:37:39,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346943397] [2024-11-28 04:37:39,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:39,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:37:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:39,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:37:39,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:37:39,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 97 [2024-11-28 04:37:39,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 106 transitions, 318 flow. Second operand has 8 states, 8 states have (on average 79.625) internal successors, (637), 8 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:39,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:39,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 97 [2024-11-28 04:37:39,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:40,118 INFO L124 PetriNetUnfolderBase]: 71/430 cut-off events. [2024-11-28 04:37:40,118 INFO L125 PetriNetUnfolderBase]: For 98/102 co-relation queries the response was YES. [2024-11-28 04:37:40,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 430 events. 71/430 cut-off events. For 98/102 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2215 event pairs, 1 based on Foata normal form. 14/433 useless extension candidates. Maximal degree in co-relation 701. Up to 32 conditions per place. [2024-11-28 04:37:40,121 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 25 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-28 04:37:40,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 328 flow [2024-11-28 04:37:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:37:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:37:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 814 transitions. [2024-11-28 04:37:40,124 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8391752577319588 [2024-11-28 04:37:40,124 INFO L175 Difference]: Start difference. First operand has 113 places, 106 transitions, 318 flow. Second operand 10 states and 814 transitions. [2024-11-28 04:37:40,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 328 flow [2024-11-28 04:37:40,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:37:40,129 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 228 flow [2024-11-28 04:37:40,129 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=228, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-28 04:37:40,130 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -7 predicate places. [2024-11-28 04:37:40,130 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 228 flow [2024-11-28 04:37:40,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.625) internal successors, (637), 8 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:40,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:40,132 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:40,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:37:40,132 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 04:37:40,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1195450316, now seen corresponding path program 1 times [2024-11-28 04:37:40,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:40,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153592111] [2024-11-28 04:37:40,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:40,166 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:37:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:40,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:37:40,200 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:37:40,200 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-28 04:37:40,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-28 04:37:40,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-28 04:37:40,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-28 04:37:40,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-28 04:37:40,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-28 04:37:40,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-28 04:37:40,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:37:40,201 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:40,201 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:37:40,201 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 04:37:40,235 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 04:37:40,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 115 transitions, 257 flow [2024-11-28 04:37:40,286 INFO L124 PetriNetUnfolderBase]: 20/345 cut-off events. [2024-11-28 04:37:40,286 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 04:37:40,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 345 events. 20/345 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 973 event pairs, 1 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 211. Up to 16 conditions per place. [2024-11-28 04:37:40,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 115 transitions, 257 flow [2024-11-28 04:37:40,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 115 transitions, 257 flow [2024-11-28 04:37:40,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:40,291 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;@44e410d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:40,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 04:37:40,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:40,296 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 04:37:40,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:37:40,296 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:40,296 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:40,296 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:40,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:40,297 INFO L85 PathProgramCache]: Analyzing trace with hash -933016296, now seen corresponding path program 1 times [2024-11-28 04:37:40,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:40,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220352407] [2024-11-28 04:37:40,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:40,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:40,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220352407] [2024-11-28 04:37:40,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220352407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:40,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:40,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:40,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113989776] [2024-11-28 04:37:40,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:40,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:40,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:40,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:40,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:40,398 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2024-11-28 04:37:40,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:40,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:40,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2024-11-28 04:37:40,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:40,818 INFO L124 PetriNetUnfolderBase]: 413/2217 cut-off events. [2024-11-28 04:37:40,819 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-28 04:37:40,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 2217 events. 413/2217 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 17772 event pairs, 232 based on Foata normal form. 64/2094 useless extension candidates. Maximal degree in co-relation 1335. Up to 496 conditions per place. [2024-11-28 04:37:40,838 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 24 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-11-28 04:37:40,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 122 transitions, 327 flow [2024-11-28 04:37:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2024-11-28 04:37:40,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8869565217391304 [2024-11-28 04:37:40,842 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 257 flow. Second operand 4 states and 408 transitions. [2024-11-28 04:37:40,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 122 transitions, 327 flow [2024-11-28 04:37:40,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 122 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:37:40,845 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 269 flow [2024-11-28 04:37:40,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2024-11-28 04:37:40,847 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 4 predicate places. [2024-11-28 04:37:40,847 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 269 flow [2024-11-28 04:37:40,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:40,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:40,848 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:40,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:37:40,848 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:40,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:40,848 INFO L85 PathProgramCache]: Analyzing trace with hash 415251038, now seen corresponding path program 1 times [2024-11-28 04:37:40,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:40,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594841428] [2024-11-28 04:37:40,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:40,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:41,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:41,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594841428] [2024-11-28 04:37:41,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594841428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:41,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:41,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:37:41,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852780273] [2024-11-28 04:37:41,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:41,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:41,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:41,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:41,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:41,263 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 115 [2024-11-28 04:37:41,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 114 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:41,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:41,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 115 [2024-11-28 04:37:41,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:42,071 INFO L124 PetriNetUnfolderBase]: 1295/3992 cut-off events. [2024-11-28 04:37:42,071 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2024-11-28 04:37:42,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6344 conditions, 3992 events. 1295/3992 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 35346 event pairs, 181 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 5668. Up to 1483 conditions per place. [2024-11-28 04:37:42,106 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 50 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2024-11-28 04:37:42,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 137 transitions, 425 flow [2024-11-28 04:37:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:37:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:37:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2024-11-28 04:37:42,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7927536231884058 [2024-11-28 04:37:42,109 INFO L175 Difference]: Start difference. First operand has 121 places, 114 transitions, 269 flow. Second operand 6 states and 547 transitions. [2024-11-28 04:37:42,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 137 transitions, 425 flow [2024-11-28 04:37:42,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 137 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:42,115 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 271 flow [2024-11-28 04:37:42,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2024-11-28 04:37:42,116 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 6 predicate places. [2024-11-28 04:37:42,116 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 271 flow [2024-11-28 04:37:42,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:42,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:42,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:42,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:37:42,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:42,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:42,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1488140622, now seen corresponding path program 1 times [2024-11-28 04:37:42,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:42,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491858266] [2024-11-28 04:37:42,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:42,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:42,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:42,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491858266] [2024-11-28 04:37:42,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491858266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:42,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:42,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:42,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935100060] [2024-11-28 04:37:42,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:42,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:42,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:42,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:42,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:42,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-28 04:37:42,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:42,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:42,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-28 04:37:42,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:42,933 INFO L124 PetriNetUnfolderBase]: 1006/3964 cut-off events. [2024-11-28 04:37:42,933 INFO L125 PetriNetUnfolderBase]: For 742/906 co-relation queries the response was YES. [2024-11-28 04:37:42,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5877 conditions, 3964 events. 1006/3964 cut-off events. For 742/906 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 37619 event pairs, 683 based on Foata normal form. 6/3512 useless extension candidates. Maximal degree in co-relation 4693. Up to 1312 conditions per place. [2024-11-28 04:37:42,982 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 27 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2024-11-28 04:37:42,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 126 transitions, 381 flow [2024-11-28 04:37:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:42,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-11-28 04:37:42,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2024-11-28 04:37:42,988 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 271 flow. Second operand 3 states and 313 transitions. [2024-11-28 04:37:42,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 126 transitions, 381 flow [2024-11-28 04:37:42,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 371 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:37:42,991 INFO L231 Difference]: Finished difference. Result has 122 places, 118 transitions, 307 flow [2024-11-28 04:37:42,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=122, PETRI_TRANSITIONS=118} [2024-11-28 04:37:42,993 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 5 predicate places. [2024-11-28 04:37:42,993 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 118 transitions, 307 flow [2024-11-28 04:37:42,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:42,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:42,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:42,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:37:42,994 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:42,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:42,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2084480586, now seen corresponding path program 1 times [2024-11-28 04:37:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:42,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711152439] [2024-11-28 04:37:42,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:43,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711152439] [2024-11-28 04:37:43,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711152439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:43,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:43,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:43,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142360058] [2024-11-28 04:37:43,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:43,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:43,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:43,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:43,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:43,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2024-11-28 04:37:43,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 118 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:43,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:43,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2024-11-28 04:37:43,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:43,665 INFO L124 PetriNetUnfolderBase]: 616/3187 cut-off events. [2024-11-28 04:37:43,665 INFO L125 PetriNetUnfolderBase]: For 440/444 co-relation queries the response was YES. [2024-11-28 04:37:43,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4715 conditions, 3187 events. 616/3187 cut-off events. For 440/444 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 29096 event pairs, 252 based on Foata normal form. 63/2922 useless extension candidates. Maximal degree in co-relation 3838. Up to 511 conditions per place. [2024-11-28 04:37:43,698 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 31 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2024-11-28 04:37:43,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 134 transitions, 418 flow [2024-11-28 04:37:43,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2024-11-28 04:37:43,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956521739130435 [2024-11-28 04:37:43,700 INFO L175 Difference]: Start difference. First operand has 122 places, 118 transitions, 307 flow. Second operand 4 states and 412 transitions. [2024-11-28 04:37:43,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 134 transitions, 418 flow [2024-11-28 04:37:43,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 134 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:43,705 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 311 flow [2024-11-28 04:37:43,706 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=311, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-11-28 04:37:43,707 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 7 predicate places. [2024-11-28 04:37:43,707 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 311 flow [2024-11-28 04:37:43,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:43,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:43,708 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:43,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:37:43,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:43,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:43,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2071418782, now seen corresponding path program 1 times [2024-11-28 04:37:43,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:43,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327357046] [2024-11-28 04:37:43,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:43,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:37:43,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:43,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327357046] [2024-11-28 04:37:43,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327357046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:43,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:43,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:37:43,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630262484] [2024-11-28 04:37:43,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:43,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:43,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:43,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:43,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:43,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2024-11-28 04:37:43,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:43,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:43,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2024-11-28 04:37:43,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:44,765 INFO L124 PetriNetUnfolderBase]: 950/4903 cut-off events. [2024-11-28 04:37:44,765 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2024-11-28 04:37:44,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7128 conditions, 4903 events. 950/4903 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 49398 event pairs, 310 based on Foata normal form. 3/4329 useless extension candidates. Maximal degree in co-relation 3734. Up to 1100 conditions per place. [2024-11-28 04:37:44,805 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 35 selfloop transitions, 7 changer transitions 0/139 dead transitions. [2024-11-28 04:37:44,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 139 transitions, 437 flow [2024-11-28 04:37:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:37:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:37:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 687 transitions. [2024-11-28 04:37:44,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.853416149068323 [2024-11-28 04:37:44,808 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 311 flow. Second operand 7 states and 687 transitions. [2024-11-28 04:37:44,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 139 transitions, 437 flow [2024-11-28 04:37:44,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 139 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:44,819 INFO L231 Difference]: Finished difference. Result has 131 places, 122 transitions, 341 flow [2024-11-28 04:37:44,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=341, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2024-11-28 04:37:44,820 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 14 predicate places. [2024-11-28 04:37:44,820 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 341 flow [2024-11-28 04:37:44,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:44,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:44,820 INFO L206 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] [2024-11-28 04:37:44,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:37:44,821 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:44,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1750737891, now seen corresponding path program 1 times [2024-11-28 04:37:44,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:44,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393123205] [2024-11-28 04:37:44,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:44,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:37:44,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:44,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393123205] [2024-11-28 04:37:44,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393123205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:44,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:44,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:44,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820404560] [2024-11-28 04:37:44,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:44,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:44,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:44,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:44,899 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-28 04:37:44,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:44,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:44,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-28 04:37:44,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:45,623 INFO L124 PetriNetUnfolderBase]: 938/4141 cut-off events. [2024-11-28 04:37:45,623 INFO L125 PetriNetUnfolderBase]: For 1378/1574 co-relation queries the response was YES. [2024-11-28 04:37:45,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6917 conditions, 4141 events. 938/4141 cut-off events. For 1378/1574 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 41402 event pairs, 546 based on Foata normal form. 7/3751 useless extension candidates. Maximal degree in co-relation 6583. Up to 1216 conditions per place. [2024-11-28 04:37:45,656 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 28 selfloop transitions, 9 changer transitions 0/136 dead transitions. [2024-11-28 04:37:45,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 466 flow [2024-11-28 04:37:45,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:45,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-28 04:37:45,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9043478260869565 [2024-11-28 04:37:45,659 INFO L175 Difference]: Start difference. First operand has 131 places, 122 transitions, 341 flow. Second operand 3 states and 312 transitions. [2024-11-28 04:37:45,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 466 flow [2024-11-28 04:37:45,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 136 transitions, 456 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 04:37:45,665 INFO L231 Difference]: Finished difference. Result has 132 places, 129 transitions, 407 flow [2024-11-28 04:37:45,666 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=132, PETRI_TRANSITIONS=129} [2024-11-28 04:37:45,666 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 15 predicate places. [2024-11-28 04:37:45,667 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 129 transitions, 407 flow [2024-11-28 04:37:45,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:45,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:45,667 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:45,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:37:45,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:45,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:45,670 INFO L85 PathProgramCache]: Analyzing trace with hash 662312961, now seen corresponding path program 1 times [2024-11-28 04:37:45,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:45,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432762054] [2024-11-28 04:37:45,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:45,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:37:45,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:45,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432762054] [2024-11-28 04:37:45,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432762054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:45,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:45,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:37:45,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661252639] [2024-11-28 04:37:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:45,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:37:45,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:45,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:37:45,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:37:46,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2024-11-28 04:37:46,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 129 transitions, 407 flow. Second operand has 8 states, 8 states have (on average 93.625) internal successors, (749), 8 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:46,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:46,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2024-11-28 04:37:46,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:47,352 INFO L124 PetriNetUnfolderBase]: 1210/6294 cut-off events. [2024-11-28 04:37:47,353 INFO L125 PetriNetUnfolderBase]: For 1575/2583 co-relation queries the response was YES. [2024-11-28 04:37:47,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9952 conditions, 6294 events. 1210/6294 cut-off events. For 1575/2583 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 66748 event pairs, 186 based on Foata normal form. 16/5595 useless extension candidates. Maximal degree in co-relation 5342. Up to 927 conditions per place. [2024-11-28 04:37:47,413 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 47 selfloop transitions, 10 changer transitions 0/161 dead transitions. [2024-11-28 04:37:47,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 161 transitions, 589 flow [2024-11-28 04:37:47,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:37:47,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:37:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 978 transitions. [2024-11-28 04:37:47,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8504347826086956 [2024-11-28 04:37:47,417 INFO L175 Difference]: Start difference. First operand has 132 places, 129 transitions, 407 flow. Second operand 10 states and 978 transitions. [2024-11-28 04:37:47,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 161 transitions, 589 flow [2024-11-28 04:37:47,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 161 transitions, 571 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:47,425 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 429 flow [2024-11-28 04:37:47,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=429, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-28 04:37:47,425 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 25 predicate places. [2024-11-28 04:37:47,426 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 429 flow [2024-11-28 04:37:47,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 93.625) internal successors, (749), 8 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:47,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:47,426 INFO L206 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, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:47,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:37:47,427 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:47,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:47,427 INFO L85 PathProgramCache]: Analyzing trace with hash 887303415, now seen corresponding path program 1 times [2024-11-28 04:37:47,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:47,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489144513] [2024-11-28 04:37:47,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:47,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:37:47,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:47,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489144513] [2024-11-28 04:37:47,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489144513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:47,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:47,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:37:47,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28298087] [2024-11-28 04:37:47,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:47,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:47,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:47,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:47,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:47,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 115 [2024-11-28 04:37:47,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:47,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:47,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 115 [2024-11-28 04:37:47,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:47,774 INFO L124 PetriNetUnfolderBase]: 98/1375 cut-off events. [2024-11-28 04:37:47,774 INFO L125 PetriNetUnfolderBase]: For 315/359 co-relation queries the response was YES. [2024-11-28 04:37:47,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1375 events. 98/1375 cut-off events. For 315/359 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10223 event pairs, 26 based on Foata normal form. 20/1279 useless extension candidates. Maximal degree in co-relation 919. Up to 101 conditions per place. [2024-11-28 04:37:47,781 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 12 selfloop transitions, 6 changer transitions 0/130 dead transitions. [2024-11-28 04:37:47,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 130 transitions, 460 flow [2024-11-28 04:37:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2024-11-28 04:37:47,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9304347826086956 [2024-11-28 04:37:47,783 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 429 flow. Second operand 3 states and 321 transitions. [2024-11-28 04:37:47,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 130 transitions, 460 flow [2024-11-28 04:37:47,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 130 transitions, 434 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 04:37:47,787 INFO L231 Difference]: Finished difference. Result has 138 places, 125 transitions, 379 flow [2024-11-28 04:37:47,788 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=138, PETRI_TRANSITIONS=125} [2024-11-28 04:37:47,788 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 21 predicate places. [2024-11-28 04:37:47,789 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 125 transitions, 379 flow [2024-11-28 04:37:47,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:47,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:47,789 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:37:47,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:37:47,790 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:47,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:47,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1022185937, now seen corresponding path program 1 times [2024-11-28 04:37:47,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:47,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273725470] [2024-11-28 04:37:47,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:47,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:37:47,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:47,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273725470] [2024-11-28 04:37:47,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273725470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:47,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:47,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:47,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010414864] [2024-11-28 04:37:47,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:47,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:47,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:47,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:47,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:47,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-28 04:37:47,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 125 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:47,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:47,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-28 04:37:47,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:48,099 INFO L124 PetriNetUnfolderBase]: 177/1427 cut-off events. [2024-11-28 04:37:48,099 INFO L125 PetriNetUnfolderBase]: For 733/781 co-relation queries the response was YES. [2024-11-28 04:37:48,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 1427 events. 177/1427 cut-off events. For 733/781 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11055 event pairs, 135 based on Foata normal form. 3/1315 useless extension candidates. Maximal degree in co-relation 2146. Up to 336 conditions per place. [2024-11-28 04:37:48,109 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 23 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2024-11-28 04:37:48,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 130 transitions, 453 flow [2024-11-28 04:37:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2024-11-28 04:37:48,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2024-11-28 04:37:48,112 INFO L175 Difference]: Start difference. First operand has 138 places, 125 transitions, 379 flow. Second operand 3 states and 305 transitions. [2024-11-28 04:37:48,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 130 transitions, 453 flow [2024-11-28 04:37:48,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 130 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:37:48,118 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 407 flow [2024-11-28 04:37:48,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2024-11-28 04:37:48,119 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 24 predicate places. [2024-11-28 04:37:48,119 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 407 flow [2024-11-28 04:37:48,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:48,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:48,120 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:48,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:37:48,120 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:48,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:48,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1291442243, now seen corresponding path program 1 times [2024-11-28 04:37:48,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:48,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540109718] [2024-11-28 04:37:48,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:48,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:37:48,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:48,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540109718] [2024-11-28 04:37:48,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540109718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:48,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:48,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:37:48,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230686748] [2024-11-28 04:37:48,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:48,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:37:48,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:48,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:37:48,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:37:48,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2024-11-28 04:37:48,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 407 flow. Second operand has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:48,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:48,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2024-11-28 04:37:48,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:48,818 INFO L124 PetriNetUnfolderBase]: 151/816 cut-off events. [2024-11-28 04:37:48,818 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-28 04:37:48,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1499 conditions, 816 events. 151/816 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4795 event pairs, 0 based on Foata normal form. 20/817 useless extension candidates. Maximal degree in co-relation 1481. Up to 88 conditions per place. [2024-11-28 04:37:48,824 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 50 selfloop transitions, 11 changer transitions 0/125 dead transitions. [2024-11-28 04:37:48,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 498 flow [2024-11-28 04:37:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:37:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:37:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1245 transitions. [2024-11-28 04:37:48,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8327759197324415 [2024-11-28 04:37:48,827 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 407 flow. Second operand 13 states and 1245 transitions. [2024-11-28 04:37:48,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 498 flow [2024-11-28 04:37:48,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 125 transitions, 460 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-28 04:37:48,832 INFO L231 Difference]: Finished difference. Result has 112 places, 86 transitions, 246 flow [2024-11-28 04:37:48,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=246, PETRI_PLACES=112, PETRI_TRANSITIONS=86} [2024-11-28 04:37:48,835 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, -5 predicate places. [2024-11-28 04:37:48,835 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 86 transitions, 246 flow [2024-11-28 04:37:48,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:48,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:48,836 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:48,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:37:48,836 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 04:37:48,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:48,837 INFO L85 PathProgramCache]: Analyzing trace with hash -752456422, now seen corresponding path program 1 times [2024-11-28 04:37:48,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:48,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843516646] [2024-11-28 04:37:48,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:48,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:48,870 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:37:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:48,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:37:48,909 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:37:48,909 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-28 04:37:48,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-28 04:37:48,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-28 04:37:48,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-28 04:37:48,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-28 04:37:48,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-28 04:37:48,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-28 04:37:48,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-28 04:37:48,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:37:48,911 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:48,912 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:37:48,912 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 04:37:48,950 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 04:37:48,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 133 transitions, 306 flow [2024-11-28 04:37:49,025 INFO L124 PetriNetUnfolderBase]: 42/595 cut-off events. [2024-11-28 04:37:49,025 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 04:37:49,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 595 events. 42/595 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2189 event pairs, 6 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 365. Up to 32 conditions per place. [2024-11-28 04:37:49,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 133 transitions, 306 flow [2024-11-28 04:37:49,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 133 transitions, 306 flow [2024-11-28 04:37:49,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:49,035 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;@44e410d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:49,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 04:37:49,037 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:49,037 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 04:37:49,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:37:49,037 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:49,038 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:49,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:37:49,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:49,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1006300152, now seen corresponding path program 1 times [2024-11-28 04:37:49,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:49,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458130506] [2024-11-28 04:37:49,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:49,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:49,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:49,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458130506] [2024-11-28 04:37:49,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458130506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:49,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511860720] [2024-11-28 04:37:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:49,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:49,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:49,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:49,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:49,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-28 04:37:49,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:49,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:49,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-28 04:37:49,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:50,231 INFO L124 PetriNetUnfolderBase]: 2017/8327 cut-off events. [2024-11-28 04:37:50,232 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-28 04:37:50,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11728 conditions, 8327 events. 2017/8327 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 85496 event pairs, 1191 based on Foata normal form. 252/7867 useless extension candidates. Maximal degree in co-relation 5299. Up to 2119 conditions per place. [2024-11-28 04:37:50,323 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2024-11-28 04:37:50,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 142 transitions, 392 flow [2024-11-28 04:37:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:50,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2024-11-28 04:37:50,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8834586466165414 [2024-11-28 04:37:50,325 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 306 flow. Second operand 4 states and 470 transitions. [2024-11-28 04:37:50,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 142 transitions, 392 flow [2024-11-28 04:37:50,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:37:50,329 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 318 flow [2024-11-28 04:37:50,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-28 04:37:50,330 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 4 predicate places. [2024-11-28 04:37:50,330 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 318 flow [2024-11-28 04:37:50,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:50,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:50,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:50,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 04:37:50,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:37:50,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1308380317, now seen corresponding path program 1 times [2024-11-28 04:37:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:50,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58326816] [2024-11-28 04:37:50,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:50,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:50,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:50,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58326816] [2024-11-28 04:37:50,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58326816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:50,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:50,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:37:50,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717559956] [2024-11-28 04:37:50,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:50,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:50,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:50,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:50,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:50,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 133 [2024-11-28 04:37:50,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:50,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:50,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 133 [2024-11-28 04:37:50,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:53,193 INFO L124 PetriNetUnfolderBase]: 6248/15894 cut-off events. [2024-11-28 04:37:53,193 INFO L125 PetriNetUnfolderBase]: For 1589/1589 co-relation queries the response was YES. [2024-11-28 04:37:53,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25970 conditions, 15894 events. 6248/15894 cut-off events. For 1589/1589 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 162501 event pairs, 808 based on Foata normal form. 0/14856 useless extension candidates. Maximal degree in co-relation 9040. Up to 6781 conditions per place. [2024-11-28 04:37:53,312 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 62 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2024-11-28 04:37:53,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 163 transitions, 514 flow [2024-11-28 04:37:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:37:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:37:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2024-11-28 04:37:53,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8057644110275689 [2024-11-28 04:37:53,314 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 318 flow. Second operand 6 states and 643 transitions. [2024-11-28 04:37:53,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 163 transitions, 514 flow [2024-11-28 04:37:53,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 163 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:53,327 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 320 flow [2024-11-28 04:37:53,328 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-28 04:37:53,329 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 6 predicate places. [2024-11-28 04:37:53,329 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 320 flow [2024-11-28 04:37:53,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:53,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:53,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:53,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:37:53,331 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:37:53,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash 825973367, now seen corresponding path program 1 times [2024-11-28 04:37:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:53,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900690616] [2024-11-28 04:37:53,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:53,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:53,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900690616] [2024-11-28 04:37:53,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900690616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:53,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:53,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:53,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741071240] [2024-11-28 04:37:53,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:53,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:53,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:53,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:53,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:53,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:37:53,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:53,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:53,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:37:53,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:56,487 INFO L124 PetriNetUnfolderBase]: 7178/23603 cut-off events. [2024-11-28 04:37:56,488 INFO L125 PetriNetUnfolderBase]: For 4769/6011 co-relation queries the response was YES. [2024-11-28 04:37:56,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35693 conditions, 23603 events. 7178/23603 cut-off events. For 4769/6011 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 286271 event pairs, 4486 based on Foata normal form. 11/20852 useless extension candidates. Maximal degree in co-relation 12989. Up to 8464 conditions per place. [2024-11-28 04:37:56,641 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 36 selfloop transitions, 7 changer transitions 0/149 dead transitions. [2024-11-28 04:37:56,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 149 transitions, 472 flow [2024-11-28 04:37:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2024-11-28 04:37:56,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072681704260651 [2024-11-28 04:37:56,645 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 320 flow. Second operand 3 states and 362 transitions. [2024-11-28 04:37:56,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 149 transitions, 472 flow [2024-11-28 04:37:56,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 149 transitions, 462 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:37:56,653 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 364 flow [2024-11-28 04:37:56,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2024-11-28 04:37:56,653 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 5 predicate places. [2024-11-28 04:37:56,654 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 364 flow [2024-11-28 04:37:56,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:56,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:56,654 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:56,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:37:56,654 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:37:56,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1403098037, now seen corresponding path program 1 times [2024-11-28 04:37:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041251279] [2024-11-28 04:37:56,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:56,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:56,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:56,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041251279] [2024-11-28 04:37:56,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041251279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:56,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:56,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:56,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203468266] [2024-11-28 04:37:56,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:56,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:56,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:56,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:56,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:56,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-28 04:37:56,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:56,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:56,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-28 04:37:56,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:59,620 INFO L124 PetriNetUnfolderBase]: 5437/19811 cut-off events. [2024-11-28 04:37:59,620 INFO L125 PetriNetUnfolderBase]: For 2734/2800 co-relation queries the response was YES. [2024-11-28 04:37:59,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30233 conditions, 19811 events. 5437/19811 cut-off events. For 2734/2800 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 241450 event pairs, 2945 based on Foata normal form. 259/17673 useless extension candidates. Maximal degree in co-relation 24434. Up to 3835 conditions per place. [2024-11-28 04:37:59,751 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 40 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2024-11-28 04:37:59,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 158 transitions, 506 flow [2024-11-28 04:37:59,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:37:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2024-11-28 04:37:59,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8966165413533834 [2024-11-28 04:37:59,753 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 364 flow. Second operand 4 states and 477 transitions. [2024-11-28 04:37:59,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 158 transitions, 506 flow [2024-11-28 04:37:59,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 158 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:37:59,771 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 366 flow [2024-11-28 04:37:59,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-28 04:37:59,773 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 7 predicate places. [2024-11-28 04:37:59,773 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 366 flow [2024-11-28 04:37:59,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:59,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:59,774 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:59,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 04:37:59,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:37:59,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1019210350, now seen corresponding path program 1 times [2024-11-28 04:37:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:59,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158402123] [2024-11-28 04:37:59,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:59,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158402123] [2024-11-28 04:37:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158402123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:59,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:59,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:37:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164537543] [2024-11-28 04:37:59,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:59,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:37:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:59,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:37:59,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:37:59,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:37:59,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:59,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:59,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:37:59,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:03,154 INFO L124 PetriNetUnfolderBase]: 6308/24158 cut-off events. [2024-11-28 04:38:03,155 INFO L125 PetriNetUnfolderBase]: For 3185/3185 co-relation queries the response was YES. [2024-11-28 04:38:03,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36542 conditions, 24158 events. 6308/24158 cut-off events. For 3185/3185 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 309684 event pairs, 2802 based on Foata normal form. 3/20930 useless extension candidates. Maximal degree in co-relation 20572. Up to 5820 conditions per place. [2024-11-28 04:38:03,353 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 41 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2024-11-28 04:38:03,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 160 transitions, 508 flow [2024-11-28 04:38:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:38:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 791 transitions. [2024-11-28 04:38:03,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.849624060150376 [2024-11-28 04:38:03,356 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 366 flow. Second operand 7 states and 791 transitions. [2024-11-28 04:38:03,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 160 transitions, 508 flow [2024-11-28 04:38:03,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 160 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:38:03,371 INFO L231 Difference]: Finished difference. Result has 150 places, 141 transitions, 396 flow [2024-11-28 04:38:03,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=396, PETRI_PLACES=150, PETRI_TRANSITIONS=141} [2024-11-28 04:38:03,372 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 14 predicate places. [2024-11-28 04:38:03,372 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 141 transitions, 396 flow [2024-11-28 04:38:03,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:03,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:03,373 INFO L206 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] [2024-11-28 04:38:03,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 04:38:03,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:03,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash -89284045, now seen corresponding path program 1 times [2024-11-28 04:38:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:03,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270759583] [2024-11-28 04:38:03,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:03,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:03,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:03,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:03,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270759583] [2024-11-28 04:38:03,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270759583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:03,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:03,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:03,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881251752] [2024-11-28 04:38:03,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:03,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:03,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:03,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:03,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:03,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:38:03,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 141 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:03,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:03,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:38:03,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:07,880 INFO L124 PetriNetUnfolderBase]: 8620/31172 cut-off events. [2024-11-28 04:38:07,880 INFO L125 PetriNetUnfolderBase]: For 10918/13139 co-relation queries the response was YES. [2024-11-28 04:38:08,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52388 conditions, 31172 events. 8620/31172 cut-off events. For 10918/13139 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 411093 event pairs, 4986 based on Foata normal form. 43/27821 useless extension candidates. Maximal degree in co-relation 51105. Up to 9839 conditions per place. [2024-11-28 04:38:08,115 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 38 selfloop transitions, 11 changer transitions 0/161 dead transitions. [2024-11-28 04:38:08,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 161 transitions, 573 flow [2024-11-28 04:38:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-28 04:38:08,117 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-28 04:38:08,117 INFO L175 Difference]: Start difference. First operand has 150 places, 141 transitions, 396 flow. Second operand 3 states and 361 transitions. [2024-11-28 04:38:08,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 161 transitions, 573 flow [2024-11-28 04:38:08,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 161 transitions, 563 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 04:38:08,169 INFO L231 Difference]: Finished difference. Result has 151 places, 150 transitions, 482 flow [2024-11-28 04:38:08,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=151, PETRI_TRANSITIONS=150} [2024-11-28 04:38:08,174 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 15 predicate places. [2024-11-28 04:38:08,174 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 150 transitions, 482 flow [2024-11-28 04:38:08,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:08,174 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:08,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 04:38:08,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:08,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:08,175 INFO L85 PathProgramCache]: Analyzing trace with hash 86314086, now seen corresponding path program 1 times [2024-11-28 04:38:08,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:08,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336406703] [2024-11-28 04:38:08,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:08,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:08,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:08,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336406703] [2024-11-28 04:38:08,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336406703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:08,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:08,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:38:08,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354705027] [2024-11-28 04:38:08,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:08,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:38:08,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:08,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:38:08,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:38:08,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:38:08,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 150 transitions, 482 flow. Second operand has 8 states, 8 states have (on average 107.625) internal successors, (861), 8 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:08,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:38:08,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:13,506 INFO L124 PetriNetUnfolderBase]: 9234/37130 cut-off events. [2024-11-28 04:38:13,506 INFO L125 PetriNetUnfolderBase]: For 10531/21435 co-relation queries the response was YES. [2024-11-28 04:38:13,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60596 conditions, 37130 events. 9234/37130 cut-off events. For 10531/21435 co-relation queries the response was YES. Maximal size of possible extension queue 1142. Compared 514658 event pairs, 2450 based on Foata normal form. 33/32098 useless extension candidates. Maximal degree in co-relation 28374. Up to 8114 conditions per place. [2024-11-28 04:38:13,808 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 55 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2024-11-28 04:38:13,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 186 transitions, 694 flow [2024-11-28 04:38:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:38:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:38:13,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1126 transitions. [2024-11-28 04:38:13,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8466165413533835 [2024-11-28 04:38:13,810 INFO L175 Difference]: Start difference. First operand has 151 places, 150 transitions, 482 flow. Second operand 10 states and 1126 transitions. [2024-11-28 04:38:13,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 186 transitions, 694 flow [2024-11-28 04:38:13,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 186 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:38:13,870 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 508 flow [2024-11-28 04:38:13,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=508, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2024-11-28 04:38:13,871 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 25 predicate places. [2024-11-28 04:38:13,871 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 508 flow [2024-11-28 04:38:13,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.625) internal successors, (861), 8 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:13,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:13,872 INFO L206 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, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:13,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 04:38:13,872 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:13,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:13,873 INFO L85 PathProgramCache]: Analyzing trace with hash 980985255, now seen corresponding path program 1 times [2024-11-28 04:38:13,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:13,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984297079] [2024-11-28 04:38:13,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:13,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:13,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:13,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984297079] [2024-11-28 04:38:13,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984297079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:13,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:13,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:13,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909886760] [2024-11-28 04:38:13,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:13,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:13,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:13,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:13,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:13,960 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 133 [2024-11-28 04:38:13,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:13,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:13,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 133 [2024-11-28 04:38:13,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:14,687 INFO L124 PetriNetUnfolderBase]: 531/5139 cut-off events. [2024-11-28 04:38:14,687 INFO L125 PetriNetUnfolderBase]: For 1394/1573 co-relation queries the response was YES. [2024-11-28 04:38:14,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7676 conditions, 5139 events. 531/5139 cut-off events. For 1394/1573 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 55970 event pairs, 193 based on Foata normal form. 140/4810 useless extension candidates. Maximal degree in co-relation 3626. Up to 422 conditions per place. [2024-11-28 04:38:14,714 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 16 selfloop transitions, 8 changer transitions 0/151 dead transitions. [2024-11-28 04:38:14,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 151 transitions, 549 flow [2024-11-28 04:38:14,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2024-11-28 04:38:14,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9273182957393483 [2024-11-28 04:38:14,715 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 508 flow. Second operand 3 states and 370 transitions. [2024-11-28 04:38:14,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 151 transitions, 549 flow [2024-11-28 04:38:14,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 151 transitions, 523 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 04:38:14,724 INFO L231 Difference]: Finished difference. Result has 157 places, 144 transitions, 444 flow [2024-11-28 04:38:14,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=157, PETRI_TRANSITIONS=144} [2024-11-28 04:38:14,725 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 21 predicate places. [2024-11-28 04:38:14,725 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 144 transitions, 444 flow [2024-11-28 04:38:14,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:14,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:14,725 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:38:14,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 04:38:14,726 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:14,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -618880762, now seen corresponding path program 1 times [2024-11-28 04:38:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043228969] [2024-11-28 04:38:14,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:14,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:14,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043228969] [2024-11-28 04:38:14,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043228969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:14,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:14,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:14,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702046675] [2024-11-28 04:38:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:14,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:14,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:14,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:14,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:14,794 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:38:14,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 144 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:14,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:14,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:38:14,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:15,667 INFO L124 PetriNetUnfolderBase]: 934/6027 cut-off events. [2024-11-28 04:38:15,667 INFO L125 PetriNetUnfolderBase]: For 3674/3776 co-relation queries the response was YES. [2024-11-28 04:38:15,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10594 conditions, 6027 events. 934/6027 cut-off events. For 3674/3776 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 68431 event pairs, 666 based on Foata normal form. 4/5496 useless extension candidates. Maximal degree in co-relation 3854. Up to 1548 conditions per place. [2024-11-28 04:38:15,692 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2024-11-28 04:38:15,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 151 transitions, 548 flow [2024-11-28 04:38:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:15,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-11-28 04:38:15,693 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8796992481203008 [2024-11-28 04:38:15,693 INFO L175 Difference]: Start difference. First operand has 157 places, 144 transitions, 444 flow. Second operand 3 states and 351 transitions. [2024-11-28 04:38:15,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 151 transitions, 548 flow [2024-11-28 04:38:15,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 151 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:38:15,698 INFO L231 Difference]: Finished difference. Result has 160 places, 147 transitions, 470 flow [2024-11-28 04:38:15,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=160, PETRI_TRANSITIONS=147} [2024-11-28 04:38:15,698 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 24 predicate places. [2024-11-28 04:38:15,698 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 147 transitions, 470 flow [2024-11-28 04:38:15,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:15,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:15,699 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:15,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 04:38:15,699 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:15,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:15,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1870399981, now seen corresponding path program 1 times [2024-11-28 04:38:15,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:15,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906697991] [2024-11-28 04:38:15,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:15,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:15,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:15,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906697991] [2024-11-28 04:38:15,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906697991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:15,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:15,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:38:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302726626] [2024-11-28 04:38:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:15,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:38:15,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:15,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:38:15,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:38:16,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-28 04:38:16,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 147 transitions, 470 flow. Second operand has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:16,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-28 04:38:16,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:17,636 INFO L124 PetriNetUnfolderBase]: 1216/8418 cut-off events. [2024-11-28 04:38:17,636 INFO L125 PetriNetUnfolderBase]: For 3392/3658 co-relation queries the response was YES. [2024-11-28 04:38:17,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13831 conditions, 8418 events. 1216/8418 cut-off events. For 3392/3658 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 91293 event pairs, 207 based on Foata normal form. 20/7681 useless extension candidates. Maximal degree in co-relation 5591. Up to 893 conditions per place. [2024-11-28 04:38:17,814 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 76 selfloop transitions, 14 changer transitions 1/205 dead transitions. [2024-11-28 04:38:17,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 205 transitions, 828 flow [2024-11-28 04:38:17,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:38:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:38:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1457 transitions. [2024-11-28 04:38:17,815 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426836321573163 [2024-11-28 04:38:17,815 INFO L175 Difference]: Start difference. First operand has 160 places, 147 transitions, 470 flow. Second operand 13 states and 1457 transitions. [2024-11-28 04:38:17,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 205 transitions, 828 flow [2024-11-28 04:38:17,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 205 transitions, 816 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 04:38:17,825 INFO L231 Difference]: Finished difference. Result has 174 places, 150 transitions, 520 flow [2024-11-28 04:38:17,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=520, PETRI_PLACES=174, PETRI_TRANSITIONS=150} [2024-11-28 04:38:17,825 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 38 predicate places. [2024-11-28 04:38:17,826 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 150 transitions, 520 flow [2024-11-28 04:38:17,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:17,826 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:17,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 04:38:17,827 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:17,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1990299710, now seen corresponding path program 1 times [2024-11-28 04:38:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:17,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889219211] [2024-11-28 04:38:17,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:17,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:17,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:17,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889219211] [2024-11-28 04:38:17,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889219211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:17,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:17,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:17,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075184382] [2024-11-28 04:38:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:17,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:17,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:17,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:17,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:17,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:38:17,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 150 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:17,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:38:17,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:18,955 INFO L124 PetriNetUnfolderBase]: 883/5710 cut-off events. [2024-11-28 04:38:18,955 INFO L125 PetriNetUnfolderBase]: For 4069/4165 co-relation queries the response was YES. [2024-11-28 04:38:18,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 5710 events. 883/5710 cut-off events. For 4069/4165 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 62739 event pairs, 677 based on Foata normal form. 4/5205 useless extension candidates. Maximal degree in co-relation 9769. Up to 1476 conditions per place. [2024-11-28 04:38:18,990 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2024-11-28 04:38:18,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 156 transitions, 615 flow [2024-11-28 04:38:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-28 04:38:18,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2024-11-28 04:38:18,992 INFO L175 Difference]: Start difference. First operand has 174 places, 150 transitions, 520 flow. Second operand 3 states and 350 transitions. [2024-11-28 04:38:18,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 156 transitions, 615 flow [2024-11-28 04:38:19,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 156 transitions, 585 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-28 04:38:19,004 INFO L231 Difference]: Finished difference. Result has 170 places, 153 transitions, 526 flow [2024-11-28 04:38:19,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=170, PETRI_TRANSITIONS=153} [2024-11-28 04:38:19,004 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 34 predicate places. [2024-11-28 04:38:19,004 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 153 transitions, 526 flow [2024-11-28 04:38:19,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:19,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:19,005 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:19,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 04:38:19,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:19,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:19,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1525930503, now seen corresponding path program 1 times [2024-11-28 04:38:19,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:19,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404666352] [2024-11-28 04:38:19,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:19,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:19,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:19,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404666352] [2024-11-28 04:38:19,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404666352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:19,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:19,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:38:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469686424] [2024-11-28 04:38:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:19,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:38:19,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:19,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:38:19,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:38:19,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 133 [2024-11-28 04:38:19,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 153 transitions, 526 flow. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:19,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:19,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 133 [2024-11-28 04:38:19,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:21,175 INFO L124 PetriNetUnfolderBase]: 2726/11410 cut-off events. [2024-11-28 04:38:21,176 INFO L125 PetriNetUnfolderBase]: For 4357/4642 co-relation queries the response was YES. [2024-11-28 04:38:21,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21748 conditions, 11410 events. 2726/11410 cut-off events. For 4357/4642 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 124665 event pairs, 1342 based on Foata normal form. 0/10706 useless extension candidates. Maximal degree in co-relation 19455. Up to 2509 conditions per place. [2024-11-28 04:38:21,281 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 59 selfloop transitions, 6 changer transitions 0/184 dead transitions. [2024-11-28 04:38:21,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 184 transitions, 750 flow [2024-11-28 04:38:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:38:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:38:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-28 04:38:21,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.818295739348371 [2024-11-28 04:38:21,284 INFO L175 Difference]: Start difference. First operand has 170 places, 153 transitions, 526 flow. Second operand 6 states and 653 transitions. [2024-11-28 04:38:21,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 184 transitions, 750 flow [2024-11-28 04:38:21,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 184 transitions, 736 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 04:38:21,329 INFO L231 Difference]: Finished difference. Result has 172 places, 152 transitions, 522 flow [2024-11-28 04:38:21,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=172, PETRI_TRANSITIONS=152} [2024-11-28 04:38:21,329 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 36 predicate places. [2024-11-28 04:38:21,330 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 152 transitions, 522 flow [2024-11-28 04:38:21,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:21,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:21,330 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:21,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 04:38:21,331 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:21,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:21,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2073254805, now seen corresponding path program 1 times [2024-11-28 04:38:21,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:21,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41675320] [2024-11-28 04:38:21,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:21,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:21,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:21,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41675320] [2024-11-28 04:38:21,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41675320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:21,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:21,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:38:21,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783608686] [2024-11-28 04:38:21,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:21,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:38:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:21,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:38:21,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:38:21,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-28 04:38:21,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 152 transitions, 522 flow. Second operand has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:21,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:21,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-28 04:38:21,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:23,138 INFO L124 PetriNetUnfolderBase]: 1190/7818 cut-off events. [2024-11-28 04:38:23,139 INFO L125 PetriNetUnfolderBase]: For 4028/4256 co-relation queries the response was YES. [2024-11-28 04:38:23,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14600 conditions, 7818 events. 1190/7818 cut-off events. For 4028/4256 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 84080 event pairs, 165 based on Foata normal form. 48/7298 useless extension candidates. Maximal degree in co-relation 5054. Up to 557 conditions per place. [2024-11-28 04:38:23,189 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 90 selfloop transitions, 16 changer transitions 8/229 dead transitions. [2024-11-28 04:38:23,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 229 transitions, 978 flow [2024-11-28 04:38:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:38:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 04:38:23,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1795 transitions. [2024-11-28 04:38:23,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8435150375939849 [2024-11-28 04:38:23,192 INFO L175 Difference]: Start difference. First operand has 172 places, 152 transitions, 522 flow. Second operand 16 states and 1795 transitions. [2024-11-28 04:38:23,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 229 transitions, 978 flow [2024-11-28 04:38:23,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 229 transitions, 958 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-28 04:38:23,203 INFO L231 Difference]: Finished difference. Result has 178 places, 150 transitions, 522 flow [2024-11-28 04:38:23,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=522, PETRI_PLACES=178, PETRI_TRANSITIONS=150} [2024-11-28 04:38:23,204 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 42 predicate places. [2024-11-28 04:38:23,204 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 150 transitions, 522 flow [2024-11-28 04:38:23,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:23,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:23,204 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:23,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 04:38:23,205 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:23,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1515218150, now seen corresponding path program 1 times [2024-11-28 04:38:23,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:23,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667051135] [2024-11-28 04:38:23,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:23,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:23,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:23,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667051135] [2024-11-28 04:38:23,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667051135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:23,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:23,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:23,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915242071] [2024-11-28 04:38:23,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:23,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:23,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:23,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:23,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:23,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-28 04:38:23,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 150 transitions, 522 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:23,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:23,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-28 04:38:23,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:24,470 INFO L124 PetriNetUnfolderBase]: 1353/8934 cut-off events. [2024-11-28 04:38:24,470 INFO L125 PetriNetUnfolderBase]: For 5180/5264 co-relation queries the response was YES. [2024-11-28 04:38:24,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16800 conditions, 8934 events. 1353/8934 cut-off events. For 5180/5264 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 106401 event pairs, 605 based on Foata normal form. 0/8374 useless extension candidates. Maximal degree in co-relation 16013. Up to 1591 conditions per place. [2024-11-28 04:38:24,529 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 30 selfloop transitions, 9 changer transitions 1/163 dead transitions. [2024-11-28 04:38:24,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 163 transitions, 656 flow [2024-11-28 04:38:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-28 04:38:24,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-28 04:38:24,531 INFO L175 Difference]: Start difference. First operand has 178 places, 150 transitions, 522 flow. Second operand 3 states and 361 transitions. [2024-11-28 04:38:24,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 163 transitions, 656 flow [2024-11-28 04:38:24,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 163 transitions, 588 flow, removed 6 selfloop flow, removed 21 redundant places. [2024-11-28 04:38:24,589 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 530 flow [2024-11-28 04:38:24,590 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2024-11-28 04:38:24,590 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 25 predicate places. [2024-11-28 04:38:24,590 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 530 flow [2024-11-28 04:38:24,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:24,591 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:24,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 04:38:24,591 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:24,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash 866412403, now seen corresponding path program 1 times [2024-11-28 04:38:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:24,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356996453] [2024-11-28 04:38:24,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:24,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:24,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:24,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356996453] [2024-11-28 04:38:24,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356996453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:24,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:24,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:38:24,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782451670] [2024-11-28 04:38:24,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:24,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:38:24,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:24,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:38:24,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:38:24,889 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-28 04:38:24,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:24,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-28 04:38:24,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:25,889 INFO L124 PetriNetUnfolderBase]: 1110/5875 cut-off events. [2024-11-28 04:38:25,889 INFO L125 PetriNetUnfolderBase]: For 3503/3699 co-relation queries the response was YES. [2024-11-28 04:38:25,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10999 conditions, 5875 events. 1110/5875 cut-off events. For 3503/3699 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 59267 event pairs, 310 based on Foata normal form. 80/5835 useless extension candidates. Maximal degree in co-relation 10335. Up to 748 conditions per place. [2024-11-28 04:38:25,918 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 63 selfloop transitions, 7 changer transitions 8/206 dead transitions. [2024-11-28 04:38:25,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 206 transitions, 852 flow [2024-11-28 04:38:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:38:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 821 transitions. [2024-11-28 04:38:25,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8818474758324383 [2024-11-28 04:38:25,919 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 530 flow. Second operand 7 states and 821 transitions. [2024-11-28 04:38:25,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 206 transitions, 852 flow [2024-11-28 04:38:25,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 206 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:38:25,926 INFO L231 Difference]: Finished difference. Result has 168 places, 157 transitions, 548 flow [2024-11-28 04:38:25,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=548, PETRI_PLACES=168, PETRI_TRANSITIONS=157} [2024-11-28 04:38:25,927 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 32 predicate places. [2024-11-28 04:38:25,927 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 157 transitions, 548 flow [2024-11-28 04:38:25,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:25,927 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:25,927 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:25,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 04:38:25,928 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:25,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1291207740, now seen corresponding path program 1 times [2024-11-28 04:38:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:25,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765735173] [2024-11-28 04:38:25,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:38:26,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:26,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765735173] [2024-11-28 04:38:26,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765735173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:26,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:26,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:38:26,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176327353] [2024-11-28 04:38:26,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:26,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:38:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:26,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:38:26,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:38:26,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-28 04:38:26,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 157 transitions, 548 flow. Second operand has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:26,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:26,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-28 04:38:26,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:27,110 INFO L124 PetriNetUnfolderBase]: 1050/4123 cut-off events. [2024-11-28 04:38:27,111 INFO L125 PetriNetUnfolderBase]: For 2254/2282 co-relation queries the response was YES. [2024-11-28 04:38:27,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8358 conditions, 4123 events. 1050/4123 cut-off events. For 2254/2282 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 34961 event pairs, 84 based on Foata normal form. 48/4135 useless extension candidates. Maximal degree in co-relation 7690. Up to 518 conditions per place. [2024-11-28 04:38:27,135 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 88 selfloop transitions, 10 changer transitions 17/234 dead transitions. [2024-11-28 04:38:27,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 234 transitions, 1004 flow [2024-11-28 04:38:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:38:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:38:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1158 transitions. [2024-11-28 04:38:27,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8706766917293233 [2024-11-28 04:38:27,137 INFO L175 Difference]: Start difference. First operand has 168 places, 157 transitions, 548 flow. Second operand 10 states and 1158 transitions. [2024-11-28 04:38:27,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 234 transitions, 1004 flow [2024-11-28 04:38:27,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 234 transitions, 994 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 04:38:27,148 INFO L231 Difference]: Finished difference. Result has 178 places, 151 transitions, 552 flow [2024-11-28 04:38:27,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=552, PETRI_PLACES=178, PETRI_TRANSITIONS=151} [2024-11-28 04:38:27,149 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 42 predicate places. [2024-11-28 04:38:27,149 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 151 transitions, 552 flow [2024-11-28 04:38:27,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:27,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:27,150 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:27,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 04:38:27,150 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 04:38:27,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2085433448, now seen corresponding path program 1 times [2024-11-28 04:38:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:27,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575922800] [2024-11-28 04:38:27,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:27,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:38:27,189 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:38:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:38:27,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:38:27,283 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:38:27,283 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-28 04:38:27,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 04:38:27,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 04:38:27,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 04:38:27,285 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:27,515 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-28 04:38:27,515 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:38:27,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:38:27 BasicIcfg [2024-11-28 04:38:27,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:38:27,527 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:38:27,527 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:38:27,528 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:38:27,528 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:34" (3/4) ... [2024-11-28 04:38:27,530 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 04:38:27,739 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 10. [2024-11-28 04:38:27,809 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:38:27,813 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:38:27,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:38:27,814 INFO L158 Benchmark]: Toolchain (without parser) took 55048.84ms. Allocated memory was 117.4MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 91.5MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2024-11-28 04:38:27,814 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.0MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:38:27,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.39ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 72.0MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:38:27,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.18ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:38:27,815 INFO L158 Benchmark]: Boogie Preprocessor took 31.64ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 69.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:38:27,815 INFO L158 Benchmark]: RCFGBuilder took 532.62ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 54.8MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:38:27,815 INFO L158 Benchmark]: TraceAbstraction took 53491.14ms. Allocated memory was 117.4MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 54.0MB in the beginning and 8.2GB in the end (delta: -8.2GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2024-11-28 04:38:27,816 INFO L158 Benchmark]: Witness Printer took 285.91ms. Allocated memory is still 11.4GB. Free memory was 8.2GB in the beginning and 8.2GB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-28 04:38:27,818 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.0MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.39ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 72.0MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.18ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.64ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 69.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 532.62ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 54.8MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 53491.14ms. Allocated memory was 117.4MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 54.0MB in the beginning and 8.2GB in the end (delta: -8.2GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. * Witness Printer took 285.91ms. Allocated memory is still 11.4GB. Free memory was 8.2GB in the beginning and 8.2GB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 685]: Data race detected Data race detected The following path leads to a data race: [L681] 0 int data = 0; VAL [data=0] [L682] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L690] 0 int threads_total = 4; VAL [data=0, data_mutex={1:0}, threads_total=4] [L691] 0 pthread_t tids[4]; VAL [data=0, data_mutex={1:0}, threads_total=4, tids={17:0}] [L692] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L693] 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=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L685] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 3 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L687] 1 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={17:0}] [L692] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={17:0}] [L695] 0 int i = 0; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L687] 2 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L696] FCALL, JOIN 2 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L687] 3 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L696] FCALL, JOIN 3 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L695] COND FALSE 0 !(i < threads_total - 1) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L698] 0 return data; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=4, tids={17:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [698] and C: data = __VERIFIER_nondet_int() [685] - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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, 94 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: 3.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 10 mSDtfsCounter, 349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 1.2s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 111 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: 3.0s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 453 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 308 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 673 IncrementalHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 38 mSDtfsCounter, 673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=6, InterpolantAutomatonStates: 37, 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, 0.9s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 15/15 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, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 128 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.7s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 777 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 572 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1149 IncrementalHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 68 mSDtfsCounter, 1149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=7, InterpolantAutomatonStates: 56, 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, 1.0s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 1292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 39/39 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, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 145 locations, 9 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: 38.3s, OverallIterations: 17, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1612 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1270 mSDsluCounter, 363 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2867 IncrementalHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 105 mSDtfsCounter, 2867 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=16, InterpolantAutomatonStates: 101, 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, 2.0s InterpolantComputationTime, 1325 NumberOfCodeBlocks, 1325 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1130 ConstructedInterpolants, 0 QuantifiedInterpolants, 3022 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 12/12 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:38:27,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd78f373-65c1-46ed-8bdf-a9d6e8cf6b9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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(DATA-RACE)