./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-25.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_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/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_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/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_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/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 778e3ae04d32637f959b85d1a08971a3e61432e093e04b2798423806241a3f5a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:17:36,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:17:37,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 02:17:37,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:17:37,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:17:37,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:17:37,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:17:37,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:17:37,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:17:37,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:17:37,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:17:37,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:17:37,139 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:17:37,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:17:37,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:17:37,141 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 02:17:37,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:17:37,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:17:37,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:17:37,141 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:17:37,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:17:37,141 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:17:37,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:17:37,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:17:37,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:17:37,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:17:37,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:17:37,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:17:37,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:17:37,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:17:37,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:17:37,143 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:17:37,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:17:37,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:17:37,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:17:37,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:17:37,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:17:37,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:17:37,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:17:37,145 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_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/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 -> 778e3ae04d32637f959b85d1a08971a3e61432e093e04b2798423806241a3f5a [2024-11-28 02:17:37,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:17:37,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:17:37,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:17:37,559 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:17:37,559 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:17:37,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-deagle/floating_read-25.i [2024-11-28 02:17:40,951 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/data/748c55c10/62c80599b3f445bc9c2ddb95c26c4407/FLAGe751dfccc [2024-11-28 02:17:41,444 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:17:41,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/sv-benchmarks/c/pthread-deagle/floating_read-25.i [2024-11-28 02:17:41,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/data/748c55c10/62c80599b3f445bc9c2ddb95c26c4407/FLAGe751dfccc [2024-11-28 02:17:41,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/data/748c55c10/62c80599b3f445bc9c2ddb95c26c4407 [2024-11-28 02:17:41,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:17:41,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:17:41,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:17:41,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:17:41,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:17:41,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:17:41" (1/1) ... [2024-11-28 02:17:41,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef6f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:41, skipping insertion in model container [2024-11-28 02:17:41,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:17:41" (1/1) ... [2024-11-28 02:17:41,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:17:42,043 WARN L1675 CHandler]: Possible shadowing of function thread [2024-11-28 02:17:42,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:17:42,095 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:17:42,137 WARN L1675 CHandler]: Possible shadowing of function thread [2024-11-28 02:17:42,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:17:42,178 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:17:42,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42 WrapperNode [2024-11-28 02:17:42,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:17:42,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:17:42,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:17:42,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:17:42,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,220 INFO L138 Inliner]: procedures = 162, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-11-28 02:17:42,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:17:42,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:17:42,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:17:42,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:17:42,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,244 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:17:42,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:17:42,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:17:42,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:17:42,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (1/1) ... [2024-11-28 02:17:42,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:17:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:42,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:17:42,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdcf94-b7d4-479f-86ee-b1ab26188a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:17:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:17:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-28 02:17:42,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:17:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:17:42,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:17:42,329 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 02:17:42,482 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:17:42,486 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:17:42,841 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:17:42,841 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:17:42,891 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:17:42,891 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:17:42,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:17:42 BoogieIcfgContainer [2024-11-28 02:17:42,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:17:42,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:17:42,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:17:42,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:17:42,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:17:41" (1/3) ... [2024-11-28 02:17:42,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193013bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:17:42, skipping insertion in model container [2024-11-28 02:17:42,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:17:42" (2/3) ... [2024-11-28 02:17:42,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193013bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:17:42, skipping insertion in model container [2024-11-28 02:17:42,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:17:42" (3/3) ... [2024-11-28 02:17:42,904 INFO L128 eAbstractionObserver]: Analyzing ICFG floating_read-25.i [2024-11-28 02:17:42,928 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:17:42,930 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG floating_read-25.i that has 2 procedures, 70 locations, 1 initial locations, 2 loop locations, and 5 error locations. [2024-11-28 02:17:42,931 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:17:43,012 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 02:17:43,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 75 transitions, 157 flow [2024-11-28 02:17:43,137 INFO L124 PetriNetUnfolderBase]: 9/119 cut-off events. [2024-11-28 02:17:43,141 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 02:17:43,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 229 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2024-11-28 02:17:43,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 75 transitions, 157 flow [2024-11-28 02:17:43,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 75 transitions, 157 flow [2024-11-28 02:17:43,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:17:43,186 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:17:43,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 02:17:43,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:17:43,193 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:17:43,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:17:43,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:43,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:43,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:17:43,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1962277609, now seen corresponding path program 1 times [2024-11-28 02:17:43,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:43,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936950802] [2024-11-28 02:17:43,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:43,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:43,440 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 02:17:43,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:43,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936950802] [2024-11-28 02:17:43,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936950802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:43,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:43,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:17:43,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336832838] [2024-11-28 02:17:43,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:43,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:17:43,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:43,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:17:43,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:17:43,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 75 [2024-11-28 02:17:43,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 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 02:17:43,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:43,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 75 [2024-11-28 02:17:43,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:43,559 INFO L124 PetriNetUnfolderBase]: 1/105 cut-off events. [2024-11-28 02:17:43,559 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-28 02:17:43,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 1/105 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 189 event pairs, 0 based on Foata normal form. 9/102 useless extension candidates. Maximal degree in co-relation 3. Up to 5 conditions per place. [2024-11-28 02:17:43,561 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 4 selfloop transitions, 0 changer transitions 12/67 dead transitions. [2024-11-28 02:17:43,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 149 flow [2024-11-28 02:17:43,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:17:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:17:43,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 138 transitions. [2024-11-28 02:17:43,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.92 [2024-11-28 02:17:43,582 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 157 flow. Second operand 2 states and 138 transitions. [2024-11-28 02:17:43,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 149 flow [2024-11-28 02:17:43,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:43,593 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 117 flow [2024-11-28 02:17:43,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=117, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-11-28 02:17:43,601 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2024-11-28 02:17:43,601 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 117 flow [2024-11-28 02:17:43,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 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 02:17:43,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:43,602 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:43,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:17:43,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:17:43,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:43,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1851695434, now seen corresponding path program 1 times [2024-11-28 02:17:43,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:43,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208423487] [2024-11-28 02:17:43,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:43,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:43,796 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 02:17:43,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:43,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208423487] [2024-11-28 02:17:43,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208423487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:43,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:43,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:17:43,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176078686] [2024-11-28 02:17:43,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:43,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:43,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:43,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:43,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:43,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2024-11-28 02:17:43,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 02:17:43,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:43,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2024-11-28 02:17:43,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:43,987 INFO L124 PetriNetUnfolderBase]: 3/97 cut-off events. [2024-11-28 02:17:43,987 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 02:17:43,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 97 events. 3/97 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 143 event pairs, 2 based on Foata normal form. 1/91 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2024-11-28 02:17:43,989 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 8 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-11-28 02:17:43,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 139 flow [2024-11-28 02:17:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-11-28 02:17:43,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2024-11-28 02:17:43,996 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 117 flow. Second operand 3 states and 185 transitions. [2024-11-28 02:17:43,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 139 flow [2024-11-28 02:17:43,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 139 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:44,002 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 125 flow [2024-11-28 02:17:44,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-11-28 02:17:44,004 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -12 predicate places. [2024-11-28 02:17:44,004 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 125 flow [2024-11-28 02:17:44,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 02:17:44,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:44,005 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 02:17:44,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:17:44,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:17:44,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1097051418, now seen corresponding path program 1 times [2024-11-28 02:17:44,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066715139] [2024-11-28 02:17:44,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:44,808 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 02:17:44,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:44,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066715139] [2024-11-28 02:17:44,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066715139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:44,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:44,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:44,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366029253] [2024-11-28 02:17:44,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:44,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:17:44,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:44,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:17:44,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:17:45,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 75 [2024-11-28 02:17:45,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 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 02:17:45,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:45,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 75 [2024-11-28 02:17:45,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:45,190 INFO L124 PetriNetUnfolderBase]: 12/107 cut-off events. [2024-11-28 02:17:45,191 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:17:45,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 107 events. 12/107 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 226 event pairs, 6 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 169. Up to 32 conditions per place. [2024-11-28 02:17:45,194 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 18 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2024-11-28 02:17:45,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 177 flow [2024-11-28 02:17:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 300 transitions. [2024-11-28 02:17:45,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-28 02:17:45,201 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 125 flow. Second operand 6 states and 300 transitions. [2024-11-28 02:17:45,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 177 flow [2024-11-28 02:17:45,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:45,206 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 129 flow [2024-11-28 02:17:45,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2024-11-28 02:17:45,209 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -10 predicate places. [2024-11-28 02:17:45,209 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 129 flow [2024-11-28 02:17:45,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 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 02:17:45,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:45,210 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] [2024-11-28 02:17:45,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:17:45,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:17:45,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1192448918, now seen corresponding path program 1 times [2024-11-28 02:17:45,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:45,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598486104] [2024-11-28 02:17:45,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:45,365 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 02:17:45,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:45,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598486104] [2024-11-28 02:17:45,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598486104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:45,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:45,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:45,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633980026] [2024-11-28 02:17:45,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:45,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:17:45,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:45,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:17:45,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:45,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 75 [2024-11-28 02:17:45,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 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 02:17:45,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:45,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 75 [2024-11-28 02:17:45,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:45,511 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2024-11-28 02:17:45,513 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 02:17:45,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 62 events. 3/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 2/64 useless extension candidates. Maximal degree in co-relation 94. Up to 4 conditions per place. [2024-11-28 02:17:45,514 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 7 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2024-11-28 02:17:45,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 114 flow [2024-11-28 02:17:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 348 transitions. [2024-11-28 02:17:45,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733333333333333 [2024-11-28 02:17:45,519 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 129 flow. Second operand 6 states and 348 transitions. [2024-11-28 02:17:45,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 114 flow [2024-11-28 02:17:45,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 102 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-28 02:17:45,522 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 82 flow [2024-11-28 02:17:45,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-28 02:17:45,523 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2024-11-28 02:17:45,524 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 82 flow [2024-11-28 02:17:45,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 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 02:17:45,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:45,525 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] [2024-11-28 02:17:45,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:17:45,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:17:45,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:45,530 INFO L85 PathProgramCache]: Analyzing trace with hash 304667106, now seen corresponding path program 1 times [2024-11-28 02:17:45,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247424331] [2024-11-28 02:17:45,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:45,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:45,583 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:17:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:45,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:17:45,639 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:17:45,641 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-28 02:17:45,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-28 02:17:45,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-28 02:17:45,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-28 02:17:45,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-28 02:17:45,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-28 02:17:45,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-28 02:17:45,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:17:45,647 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 02:17:45,654 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:17:45,655 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 02:17:45,692 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 02:17:45,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 83 transitions, 182 flow [2024-11-28 02:17:45,752 INFO L124 PetriNetUnfolderBase]: 16/200 cut-off events. [2024-11-28 02:17:45,753 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:17:45,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 200 events. 16/200 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 436 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2024-11-28 02:17:45,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 83 transitions, 182 flow [2024-11-28 02:17:45,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 83 transitions, 182 flow [2024-11-28 02:17:45,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:17:45,760 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:17:45,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 02:17:45,765 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:17:45,765 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:17:45,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:17:45,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:45,765 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:45,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:45,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:45,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1981369225, now seen corresponding path program 1 times [2024-11-28 02:17:45,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:45,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254331542] [2024-11-28 02:17:45,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:45,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:45,787 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 02:17:45,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:45,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254331542] [2024-11-28 02:17:45,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254331542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:45,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:45,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:17:45,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286287581] [2024-11-28 02:17:45,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:45,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:17:45,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:45,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:17:45,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:17:45,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 83 [2024-11-28 02:17:45,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 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 02:17:45,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:45,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 83 [2024-11-28 02:17:45,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:45,857 INFO L124 PetriNetUnfolderBase]: 7/212 cut-off events. [2024-11-28 02:17:45,857 INFO L125 PetriNetUnfolderBase]: For 26/35 co-relation queries the response was YES. [2024-11-28 02:17:45,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 212 events. 7/212 cut-off events. For 26/35 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 537 event pairs, 4 based on Foata normal form. 16/203 useless extension candidates. Maximal degree in co-relation 111. Up to 18 conditions per place. [2024-11-28 02:17:45,860 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 7 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2024-11-28 02:17:45,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 178 flow [2024-11-28 02:17:45,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:17:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:17:45,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2024-11-28 02:17:45,862 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9036144578313253 [2024-11-28 02:17:45,863 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 182 flow. Second operand 2 states and 150 transitions. [2024-11-28 02:17:45,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 178 flow [2024-11-28 02:17:45,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:45,867 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2024-11-28 02:17:45,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-11-28 02:17:45,870 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2024-11-28 02:17:45,871 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2024-11-28 02:17:45,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 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 02:17:45,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:45,872 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:45,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:17:45,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:45,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1741688233, now seen corresponding path program 1 times [2024-11-28 02:17:45,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:45,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94257060] [2024-11-28 02:17:45,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:45,911 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 02:17:45,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94257060] [2024-11-28 02:17:45,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94257060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:45,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:45,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:17:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110843752] [2024-11-28 02:17:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:45,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:45,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:45,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:45,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:45,961 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 83 [2024-11-28 02:17:45,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 02:17:45,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:45,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 83 [2024-11-28 02:17:45,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:46,077 INFO L124 PetriNetUnfolderBase]: 28/388 cut-off events. [2024-11-28 02:17:46,078 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-28 02:17:46,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 388 events. 28/388 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1865 event pairs, 10 based on Foata normal form. 1/350 useless extension candidates. Maximal degree in co-relation 469. Up to 65 conditions per place. [2024-11-28 02:17:46,082 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 12 selfloop transitions, 2 changer transitions 3/76 dead transitions. [2024-11-28 02:17:46,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 198 flow [2024-11-28 02:17:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:46,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-11-28 02:17:46,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8112449799196787 [2024-11-28 02:17:46,086 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 3 states and 202 transitions. [2024-11-28 02:17:46,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 198 flow [2024-11-28 02:17:46,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:46,091 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 170 flow [2024-11-28 02:17:46,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2024-11-28 02:17:46,093 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-11-28 02:17:46,094 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 170 flow [2024-11-28 02:17:46,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 02:17:46,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:46,095 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 02:17:46,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:17:46,095 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:46,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash -9070919, now seen corresponding path program 1 times [2024-11-28 02:17:46,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:46,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706090790] [2024-11-28 02:17:46,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:46,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:46,546 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 02:17:46,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:46,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706090790] [2024-11-28 02:17:46,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706090790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:46,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:46,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:46,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159554066] [2024-11-28 02:17:46,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:46,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:17:46,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:46,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:17:46,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:17:46,723 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 83 [2024-11-28 02:17:46,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 0 states have call successors, (0), 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 02:17:46,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:46,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 83 [2024-11-28 02:17:46,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:46,904 INFO L124 PetriNetUnfolderBase]: 77/403 cut-off events. [2024-11-28 02:17:46,904 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-28 02:17:46,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 403 events. 77/403 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2010 event pairs, 12 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 621. Up to 122 conditions per place. [2024-11-28 02:17:46,909 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 25 selfloop transitions, 6 changer transitions 2/79 dead transitions. [2024-11-28 02:17:46,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 248 flow [2024-11-28 02:17:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:46,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2024-11-28 02:17:46,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-28 02:17:46,914 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 170 flow. Second operand 6 states and 332 transitions. [2024-11-28 02:17:46,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 248 flow [2024-11-28 02:17:46,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:17:46,918 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 174 flow [2024-11-28 02:17:46,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2024-11-28 02:17:46,920 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-11-28 02:17:46,923 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 174 flow [2024-11-28 02:17:46,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 0 states have call successors, (0), 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 02:17:46,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:46,924 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] [2024-11-28 02:17:46,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:17:46,924 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:46,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1834370269, now seen corresponding path program 1 times [2024-11-28 02:17:46,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:46,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437549042] [2024-11-28 02:17:46,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:46,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:47,044 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 02:17:47,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:47,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437549042] [2024-11-28 02:17:47,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437549042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:47,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:47,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:47,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140184522] [2024-11-28 02:17:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:47,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:17:47,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:47,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:17:47,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:47,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 83 [2024-11-28 02:17:47,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 0 states have call successors, (0), 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 02:17:47,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:47,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 83 [2024-11-28 02:17:47,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:47,241 INFO L124 PetriNetUnfolderBase]: 28/321 cut-off events. [2024-11-28 02:17:47,241 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-28 02:17:47,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 321 events. 28/321 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1288 event pairs, 3 based on Foata normal form. 2/295 useless extension candidates. Maximal degree in co-relation 448. Up to 43 conditions per place. [2024-11-28 02:17:47,244 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 17 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2024-11-28 02:17:47,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 76 transitions, 232 flow [2024-11-28 02:17:47,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:47,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2024-11-28 02:17:47,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690763052208835 [2024-11-28 02:17:47,249 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 174 flow. Second operand 6 states and 383 transitions. [2024-11-28 02:17:47,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 76 transitions, 232 flow [2024-11-28 02:17:47,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 220 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:17:47,253 INFO L231 Difference]: Finished difference. Result has 82 places, 71 transitions, 188 flow [2024-11-28 02:17:47,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=82, PETRI_TRANSITIONS=71} [2024-11-28 02:17:47,254 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-28 02:17:47,256 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 71 transitions, 188 flow [2024-11-28 02:17:47,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 0 states have call successors, (0), 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 02:17:47,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:47,257 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:47,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:17:47,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:47,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:47,258 INFO L85 PathProgramCache]: Analyzing trace with hash -821921796, now seen corresponding path program 1 times [2024-11-28 02:17:47,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:47,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724194803] [2024-11-28 02:17:47,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:47,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:47,330 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 02:17:47,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:47,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724194803] [2024-11-28 02:17:47,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724194803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:47,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:47,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:17:47,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711319694] [2024-11-28 02:17:47,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:47,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:47,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:47,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:47,336 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2024-11-28 02:17:47,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 71 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 02:17:47,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:47,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2024-11-28 02:17:47,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:47,470 INFO L124 PetriNetUnfolderBase]: 19/335 cut-off events. [2024-11-28 02:17:47,472 INFO L125 PetriNetUnfolderBase]: For 55/64 co-relation queries the response was YES. [2024-11-28 02:17:47,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 335 events. 19/335 cut-off events. For 55/64 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1466 event pairs, 8 based on Foata normal form. 2/299 useless extension candidates. Maximal degree in co-relation 423. Up to 37 conditions per place. [2024-11-28 02:17:47,474 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 11 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-11-28 02:17:47,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 76 transitions, 234 flow [2024-11-28 02:17:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2024-11-28 02:17:47,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8473895582329317 [2024-11-28 02:17:47,476 INFO L175 Difference]: Start difference. First operand has 82 places, 71 transitions, 188 flow. Second operand 3 states and 211 transitions. [2024-11-28 02:17:47,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 76 transitions, 234 flow [2024-11-28 02:17:47,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 76 transitions, 228 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:47,484 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 212 flow [2024-11-28 02:17:47,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-11-28 02:17:47,485 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2024-11-28 02:17:47,487 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 212 flow [2024-11-28 02:17:47,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 02:17:47,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:47,487 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:47,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:17:47,488 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:47,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:47,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1600903714, now seen corresponding path program 1 times [2024-11-28 02:17:47,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:47,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569797451] [2024-11-28 02:17:47,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:47,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:47,721 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 02:17:47,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:47,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569797451] [2024-11-28 02:17:47,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569797451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:47,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:47,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:17:47,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451488609] [2024-11-28 02:17:47,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:47,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:17:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:47,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:17:47,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:17:47,818 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 83 [2024-11-28 02:17:47,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 212 flow. Second operand has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 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 02:17:47,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:47,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 83 [2024-11-28 02:17:47,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:47,914 INFO L124 PetriNetUnfolderBase]: 17/146 cut-off events. [2024-11-28 02:17:47,914 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-28 02:17:47,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 146 events. 17/146 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 365 event pairs, 0 based on Foata normal form. 4/150 useless extension candidates. Maximal degree in co-relation 243. Up to 21 conditions per place. [2024-11-28 02:17:47,915 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 15 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2024-11-28 02:17:47,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 202 flow [2024-11-28 02:17:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:17:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:17:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 563 transitions. [2024-11-28 02:17:47,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7536813922356091 [2024-11-28 02:17:47,918 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 212 flow. Second operand 9 states and 563 transitions. [2024-11-28 02:17:47,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 202 flow [2024-11-28 02:17:47,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:47,920 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 132 flow [2024-11-28 02:17:47,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=132, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-11-28 02:17:47,921 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -19 predicate places. [2024-11-28 02:17:47,921 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 132 flow [2024-11-28 02:17:47,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 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 02:17:47,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:47,921 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:47,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:17:47,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:17:47,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:47,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1449206773, now seen corresponding path program 1 times [2024-11-28 02:17:47,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:47,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090348381] [2024-11-28 02:17:47,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:47,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:47,944 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:17:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:47,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:17:47,964 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:17:47,964 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-28 02:17:47,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-28 02:17:47,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:17:47,966 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:47,966 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:17:47,966 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 02:17:47,985 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 02:17:47,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 209 flow [2024-11-28 02:17:48,030 INFO L124 PetriNetUnfolderBase]: 28/328 cut-off events. [2024-11-28 02:17:48,031 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 02:17:48,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 328 events. 28/328 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 867 event pairs, 1 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 208. Up to 16 conditions per place. [2024-11-28 02:17:48,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 209 flow [2024-11-28 02:17:48,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 209 flow [2024-11-28 02:17:48,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:17:48,035 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:17:48,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 02:17:48,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:17:48,039 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:17:48,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:17:48,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:48,039 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:48,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:48,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:48,040 INFO L85 PathProgramCache]: Analyzing trace with hash 398156585, now seen corresponding path program 1 times [2024-11-28 02:17:48,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:48,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509560166] [2024-11-28 02:17:48,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:48,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:48,059 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 02:17:48,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:48,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509560166] [2024-11-28 02:17:48,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509560166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:48,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:48,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:17:48,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295012941] [2024-11-28 02:17:48,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:48,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:17:48,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:48,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:17:48,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:17:48,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2024-11-28 02:17:48,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 209 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 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 02:17:48,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:48,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2024-11-28 02:17:48,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:48,204 INFO L124 PetriNetUnfolderBase]: 36/492 cut-off events. [2024-11-28 02:17:48,204 INFO L125 PetriNetUnfolderBase]: For 119/174 co-relation queries the response was YES. [2024-11-28 02:17:48,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 492 events. 36/492 cut-off events. For 119/174 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2116 event pairs, 27 based on Foata normal form. 36/468 useless extension candidates. Maximal degree in co-relation 303. Up to 68 conditions per place. [2024-11-28 02:17:48,207 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 10 selfloop transitions, 0 changer transitions 0/81 dead transitions. [2024-11-28 02:17:48,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 81 transitions, 209 flow [2024-11-28 02:17:48,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:17:48,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:17:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2024-11-28 02:17:48,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8901098901098901 [2024-11-28 02:17:48,210 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 209 flow. Second operand 2 states and 162 transitions. [2024-11-28 02:17:48,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 81 transitions, 209 flow [2024-11-28 02:17:48,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:48,212 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 189 flow [2024-11-28 02:17:48,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=189, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-11-28 02:17:48,213 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2024-11-28 02:17:48,213 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 189 flow [2024-11-28 02:17:48,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 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 02:17:48,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:48,214 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:48,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:17:48,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:48,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:48,215 INFO L85 PathProgramCache]: Analyzing trace with hash -786902108, now seen corresponding path program 1 times [2024-11-28 02:17:48,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:48,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963301228] [2024-11-28 02:17:48,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:48,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:48,246 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 02:17:48,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:48,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963301228] [2024-11-28 02:17:48,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963301228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:48,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:48,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:17:48,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009371717] [2024-11-28 02:17:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:48,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:48,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:48,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:48,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:48,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-11-28 02:17:48,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 02:17:48,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:48,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-11-28 02:17:48,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:48,528 INFO L124 PetriNetUnfolderBase]: 117/1051 cut-off events. [2024-11-28 02:17:48,528 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-28 02:17:48,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 1051 events. 117/1051 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6799 event pairs, 64 based on Foata normal form. 1/949 useless extension candidates. Maximal degree in co-relation 1318. Up to 214 conditions per place. [2024-11-28 02:17:48,536 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 15 selfloop transitions, 2 changer transitions 3/83 dead transitions. [2024-11-28 02:17:48,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 229 flow [2024-11-28 02:17:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-11-28 02:17:48,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7948717948717948 [2024-11-28 02:17:48,538 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 189 flow. Second operand 3 states and 217 transitions. [2024-11-28 02:17:48,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 229 flow [2024-11-28 02:17:48,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:48,542 INFO L231 Difference]: Finished difference. Result has 89 places, 79 transitions, 195 flow [2024-11-28 02:17:48,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=89, PETRI_TRANSITIONS=79} [2024-11-28 02:17:48,546 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2024-11-28 02:17:48,546 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 79 transitions, 195 flow [2024-11-28 02:17:48,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 02:17:48,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:48,547 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 02:17:48,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:17:48,547 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:48,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:48,547 INFO L85 PathProgramCache]: Analyzing trace with hash -58143084, now seen corresponding path program 1 times [2024-11-28 02:17:48,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:48,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323782285] [2024-11-28 02:17:48,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:48,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:48,919 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 02:17:48,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:48,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323782285] [2024-11-28 02:17:48,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323782285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:48,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:48,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:48,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342778867] [2024-11-28 02:17:48,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:48,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:17:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:48,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:17:48,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:17:49,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 91 [2024-11-28 02:17:49,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 79 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 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 02:17:49,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:49,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 91 [2024-11-28 02:17:49,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:49,351 INFO L124 PetriNetUnfolderBase]: 312/1108 cut-off events. [2024-11-28 02:17:49,351 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-28 02:17:49,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 1108 events. 312/1108 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6579 event pairs, 146 based on Foata normal form. 0/1037 useless extension candidates. Maximal degree in co-relation 1780. Up to 415 conditions per place. [2024-11-28 02:17:49,362 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 32 selfloop transitions, 6 changer transitions 2/90 dead transitions. [2024-11-28 02:17:49,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 295 flow [2024-11-28 02:17:49,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:49,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 363 transitions. [2024-11-28 02:17:49,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648351648351648 [2024-11-28 02:17:49,364 INFO L175 Difference]: Start difference. First operand has 89 places, 79 transitions, 195 flow. Second operand 6 states and 363 transitions. [2024-11-28 02:17:49,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 295 flow [2024-11-28 02:17:49,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:17:49,368 INFO L231 Difference]: Finished difference. Result has 89 places, 76 transitions, 199 flow [2024-11-28 02:17:49,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2024-11-28 02:17:49,370 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2024-11-28 02:17:49,370 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 76 transitions, 199 flow [2024-11-28 02:17:49,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 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 02:17:49,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:49,371 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] [2024-11-28 02:17:49,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:17:49,372 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:49,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash 566235832, now seen corresponding path program 1 times [2024-11-28 02:17:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:49,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891634369] [2024-11-28 02:17:49,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:49,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:49,451 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 02:17:49,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:49,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891634369] [2024-11-28 02:17:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891634369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:49,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:49,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734470092] [2024-11-28 02:17:49,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:49,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:17:49,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:49,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:17:49,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:49,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 91 [2024-11-28 02:17:49,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 76 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 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 02:17:49,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:49,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 91 [2024-11-28 02:17:49,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:49,743 INFO L124 PetriNetUnfolderBase]: 120/895 cut-off events. [2024-11-28 02:17:49,743 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-11-28 02:17:49,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 895 events. 120/895 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5522 event pairs, 30 based on Foata normal form. 2/813 useless extension candidates. Maximal degree in co-relation 1265. Up to 193 conditions per place. [2024-11-28 02:17:49,749 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 22 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2024-11-28 02:17:49,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 275 flow [2024-11-28 02:17:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2024-11-28 02:17:49,752 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7545787545787546 [2024-11-28 02:17:49,752 INFO L175 Difference]: Start difference. First operand has 89 places, 76 transitions, 199 flow. Second operand 6 states and 412 transitions. [2024-11-28 02:17:49,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 275 flow [2024-11-28 02:17:49,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 261 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:17:49,755 INFO L231 Difference]: Finished difference. Result has 90 places, 79 transitions, 219 flow [2024-11-28 02:17:49,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=90, PETRI_TRANSITIONS=79} [2024-11-28 02:17:49,756 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -1 predicate places. [2024-11-28 02:17:49,756 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 79 transitions, 219 flow [2024-11-28 02:17:49,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 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 02:17:49,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:49,757 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:49,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:17:49,757 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:49,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:49,758 INFO L85 PathProgramCache]: Analyzing trace with hash 777161643, now seen corresponding path program 1 times [2024-11-28 02:17:49,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:49,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718447203] [2024-11-28 02:17:49,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:49,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:49,814 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 02:17:49,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:49,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718447203] [2024-11-28 02:17:49,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718447203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:49,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:49,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:17:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425530526] [2024-11-28 02:17:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:49,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:49,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:49,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:49,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:49,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2024-11-28 02:17:49,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 79 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 02:17:49,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:49,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2024-11-28 02:17:49,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:50,028 INFO L124 PetriNetUnfolderBase]: 119/1006 cut-off events. [2024-11-28 02:17:50,028 INFO L125 PetriNetUnfolderBase]: For 230/286 co-relation queries the response was YES. [2024-11-28 02:17:50,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1006 events. 119/1006 cut-off events. For 230/286 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6880 event pairs, 42 based on Foata normal form. 5/887 useless extension candidates. Maximal degree in co-relation 1331. Up to 162 conditions per place. [2024-11-28 02:17:50,036 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 15 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2024-11-28 02:17:50,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 282 flow [2024-11-28 02:17:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-11-28 02:17:50,038 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2024-11-28 02:17:50,038 INFO L175 Difference]: Start difference. First operand has 90 places, 79 transitions, 219 flow. Second operand 3 states and 228 transitions. [2024-11-28 02:17:50,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 282 flow [2024-11-28 02:17:50,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 86 transitions, 276 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:50,043 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 251 flow [2024-11-28 02:17:50,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-11-28 02:17:50,045 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-11-28 02:17:50,045 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 251 flow [2024-11-28 02:17:50,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 02:17:50,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:50,045 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:50,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:17:50,046 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:50,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1743632066, now seen corresponding path program 1 times [2024-11-28 02:17:50,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:50,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230279259] [2024-11-28 02:17:50,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:50,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:17:50,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:50,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230279259] [2024-11-28 02:17:50,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230279259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:50,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:50,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:17:50,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858331493] [2024-11-28 02:17:50,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:50,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:17:50,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:50,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:17:50,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:17:50,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 91 [2024-11-28 02:17:50,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 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 02:17:50,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:50,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 91 [2024-11-28 02:17:50,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:50,604 INFO L124 PetriNetUnfolderBase]: 175/1157 cut-off events. [2024-11-28 02:17:50,604 INFO L125 PetriNetUnfolderBase]: For 470/493 co-relation queries the response was YES. [2024-11-28 02:17:50,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1872 conditions, 1157 events. 175/1157 cut-off events. For 470/493 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7454 event pairs, 38 based on Foata normal form. 4/1062 useless extension candidates. Maximal degree in co-relation 1860. Up to 218 conditions per place. [2024-11-28 02:17:50,613 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 30 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-28 02:17:50,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 97 transitions, 383 flow [2024-11-28 02:17:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:17:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:17:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 612 transitions. [2024-11-28 02:17:50,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7472527472527473 [2024-11-28 02:17:50,616 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 251 flow. Second operand 9 states and 612 transitions. [2024-11-28 02:17:50,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 97 transitions, 383 flow [2024-11-28 02:17:50,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 97 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:50,620 INFO L231 Difference]: Finished difference. Result has 101 places, 85 transitions, 277 flow [2024-11-28 02:17:50,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=277, PETRI_PLACES=101, PETRI_TRANSITIONS=85} [2024-11-28 02:17:50,621 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 10 predicate places. [2024-11-28 02:17:50,621 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 85 transitions, 277 flow [2024-11-28 02:17:50,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 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 02:17:50,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:50,622 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:50,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:17:50,622 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:50,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:50,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1893914772, now seen corresponding path program 1 times [2024-11-28 02:17:50,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:50,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676566782] [2024-11-28 02:17:50,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:50,846 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 02:17:50,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:50,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676566782] [2024-11-28 02:17:50,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676566782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:50,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:50,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:17:50,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334535559] [2024-11-28 02:17:50,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:50,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:17:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:50,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:17:50,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:17:50,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 91 [2024-11-28 02:17:50,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 85 transitions, 277 flow. Second operand has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 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 02:17:50,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:50,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 91 [2024-11-28 02:17:50,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:51,136 INFO L124 PetriNetUnfolderBase]: 61/318 cut-off events. [2024-11-28 02:17:51,136 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-11-28 02:17:51,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 318 events. 61/318 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1255 event pairs, 0 based on Foata normal form. 8/326 useless extension candidates. Maximal degree in co-relation 646. Up to 69 conditions per place. [2024-11-28 02:17:51,139 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 26 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2024-11-28 02:17:51,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 328 flow [2024-11-28 02:17:51,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:17:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 02:17:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 805 transitions. [2024-11-28 02:17:51,143 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7371794871794872 [2024-11-28 02:17:51,144 INFO L175 Difference]: Start difference. First operand has 101 places, 85 transitions, 277 flow. Second operand 12 states and 805 transitions. [2024-11-28 02:17:51,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 328 flow [2024-11-28 02:17:51,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 302 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-28 02:17:51,147 INFO L231 Difference]: Finished difference. Result has 78 places, 53 transitions, 178 flow [2024-11-28 02:17:51,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=178, PETRI_PLACES=78, PETRI_TRANSITIONS=53} [2024-11-28 02:17:51,148 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -13 predicate places. [2024-11-28 02:17:51,149 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 53 transitions, 178 flow [2024-11-28 02:17:51,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 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 02:17:51,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:51,149 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 02:17:51,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:17:51,150 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:17:51,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash -510353707, now seen corresponding path program 1 times [2024-11-28 02:17:51,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:51,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61087175] [2024-11-28 02:17:51,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:51,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:51,186 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:17:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:51,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:17:51,225 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:17:51,225 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-28 02:17:51,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 02:17:51,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 02:17:51,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 02:17:51,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-28 02:17:51,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-28 02:17:51,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 02:17:51,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 02:17:51,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 02:17:51,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:17:51,227 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:51,228 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:17:51,229 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 02:17:51,256 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 02:17:51,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 99 transitions, 238 flow [2024-11-28 02:17:51,331 INFO L124 PetriNetUnfolderBase]: 52/552 cut-off events. [2024-11-28 02:17:51,331 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 02:17:51,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 552 events. 52/552 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1933 event pairs, 6 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 348. Up to 32 conditions per place. [2024-11-28 02:17:51,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 99 transitions, 238 flow [2024-11-28 02:17:51,336 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 238 flow [2024-11-28 02:17:51,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:17:51,338 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:17:51,338 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 02:17:51,339 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:17:51,340 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:17:51,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:17:51,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:51,340 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:51,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:51,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1507606985, now seen corresponding path program 1 times [2024-11-28 02:17:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:51,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404486116] [2024-11-28 02:17:51,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:51,356 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 02:17:51,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:51,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404486116] [2024-11-28 02:17:51,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404486116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:51,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:51,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:17:51,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556420230] [2024-11-28 02:17:51,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:51,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:17:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:51,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:17:51,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:17:51,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-11-28 02:17:51,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 238 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 02:17:51,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:51,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-11-28 02:17:51,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:51,603 INFO L124 PetriNetUnfolderBase]: 157/1308 cut-off events. [2024-11-28 02:17:51,603 INFO L125 PetriNetUnfolderBase]: For 478/763 co-relation queries the response was YES. [2024-11-28 02:17:51,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1308 events. 157/1308 cut-off events. For 478/763 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 8554 event pairs, 128 based on Foata normal form. 105/1248 useless extension candidates. Maximal degree in co-relation 947. Up to 250 conditions per place. [2024-11-28 02:17:51,613 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 13 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2024-11-28 02:17:51,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 242 flow [2024-11-28 02:17:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:17:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:17:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2024-11-28 02:17:51,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2024-11-28 02:17:51,615 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 238 flow. Second operand 2 states and 174 transitions. [2024-11-28 02:17:51,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 242 flow [2024-11-28 02:17:51,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 242 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:51,618 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 216 flow [2024-11-28 02:17:51,618 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=216, PETRI_PLACES=94, PETRI_TRANSITIONS=88} [2024-11-28 02:17:51,619 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-11-28 02:17:51,619 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 216 flow [2024-11-28 02:17:51,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 02:17:51,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:51,619 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:51,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:17:51,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:51,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash -847531865, now seen corresponding path program 1 times [2024-11-28 02:17:51,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:51,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156972710] [2024-11-28 02:17:51,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:51,646 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 02:17:51,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:51,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156972710] [2024-11-28 02:17:51,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156972710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:51,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:51,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:17:51,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265160045] [2024-11-28 02:17:51,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:51,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:51,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:51,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:51,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:51,682 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2024-11-28 02:17:51,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 88 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 02:17:51,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:51,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2024-11-28 02:17:51,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:52,178 INFO L124 PetriNetUnfolderBase]: 422/2882 cut-off events. [2024-11-28 02:17:52,178 INFO L125 PetriNetUnfolderBase]: For 531/531 co-relation queries the response was YES. [2024-11-28 02:17:52,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2882 events. 422/2882 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 23748 event pairs, 278 based on Foata normal form. 1/2616 useless extension candidates. Maximal degree in co-relation 3731. Up to 675 conditions per place. [2024-11-28 02:17:52,196 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 18 selfloop transitions, 2 changer transitions 3/90 dead transitions. [2024-11-28 02:17:52,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 262 flow [2024-11-28 02:17:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-11-28 02:17:52,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7811447811447811 [2024-11-28 02:17:52,198 INFO L175 Difference]: Start difference. First operand has 94 places, 88 transitions, 216 flow. Second operand 3 states and 232 transitions. [2024-11-28 02:17:52,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 90 transitions, 262 flow [2024-11-28 02:17:52,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 262 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:52,200 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 222 flow [2024-11-28 02:17:52,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2024-11-28 02:17:52,201 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-11-28 02:17:52,201 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 222 flow [2024-11-28 02:17:52,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 02:17:52,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:52,201 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 02:17:52,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:17:52,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:52,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:52,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1244267913, now seen corresponding path program 1 times [2024-11-28 02:17:52,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:52,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449222436] [2024-11-28 02:17:52,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:52,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:52,480 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 02:17:52,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:52,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449222436] [2024-11-28 02:17:52,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449222436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:52,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:52,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:52,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978519862] [2024-11-28 02:17:52,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:52,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:17:52,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:52,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:17:52,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:17:52,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 99 [2024-11-28 02:17:52,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 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 02:17:52,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:52,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 99 [2024-11-28 02:17:52,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:53,278 INFO L124 PetriNetUnfolderBase]: 1099/3285 cut-off events. [2024-11-28 02:17:53,278 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-28 02:17:53,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5364 conditions, 3285 events. 1099/3285 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 24350 event pairs, 150 based on Foata normal form. 0/3063 useless extension candidates. Maximal degree in co-relation 5355. Up to 1372 conditions per place. [2024-11-28 02:17:53,303 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 39 selfloop transitions, 6 changer transitions 2/101 dead transitions. [2024-11-28 02:17:53,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 101 transitions, 344 flow [2024-11-28 02:17:53,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-11-28 02:17:53,305 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6632996632996633 [2024-11-28 02:17:53,306 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 222 flow. Second operand 6 states and 394 transitions. [2024-11-28 02:17:53,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 101 transitions, 344 flow [2024-11-28 02:17:53,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 101 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:17:53,309 INFO L231 Difference]: Finished difference. Result has 97 places, 83 transitions, 226 flow [2024-11-28 02:17:53,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=97, PETRI_TRANSITIONS=83} [2024-11-28 02:17:53,309 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-11-28 02:17:53,309 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 83 transitions, 226 flow [2024-11-28 02:17:53,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 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 02:17:53,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:53,310 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] [2024-11-28 02:17:53,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:17:53,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:53,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash -195667371, now seen corresponding path program 1 times [2024-11-28 02:17:53,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:53,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897932202] [2024-11-28 02:17:53,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:53,389 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 02:17:53,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:53,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897932202] [2024-11-28 02:17:53,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897932202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:53,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:53,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:53,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334528033] [2024-11-28 02:17:53,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:53,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:17:53,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:53,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:17:53,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:53,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-28 02:17:53,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 83 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 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 02:17:53,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:53,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-28 02:17:53,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:53,902 INFO L124 PetriNetUnfolderBase]: 408/2431 cut-off events. [2024-11-28 02:17:53,902 INFO L125 PetriNetUnfolderBase]: For 561/561 co-relation queries the response was YES. [2024-11-28 02:17:53,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3465 conditions, 2431 events. 408/2431 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 18986 event pairs, 167 based on Foata normal form. 2/2193 useless extension candidates. Maximal degree in co-relation 3456. Up to 615 conditions per place. [2024-11-28 02:17:53,923 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 25 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2024-11-28 02:17:53,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 308 flow [2024-11-28 02:17:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:17:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-28 02:17:53,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7390572390572391 [2024-11-28 02:17:53,926 INFO L175 Difference]: Start difference. First operand has 97 places, 83 transitions, 226 flow. Second operand 6 states and 439 transitions. [2024-11-28 02:17:53,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 308 flow [2024-11-28 02:17:53,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 92 transitions, 294 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:17:53,932 INFO L231 Difference]: Finished difference. Result has 98 places, 86 transitions, 246 flow [2024-11-28 02:17:53,932 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=246, PETRI_PLACES=98, PETRI_TRANSITIONS=86} [2024-11-28 02:17:53,932 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -2 predicate places. [2024-11-28 02:17:53,933 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 86 transitions, 246 flow [2024-11-28 02:17:53,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 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 02:17:53,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:53,933 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:53,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:17:53,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:53,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:53,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1775806562, now seen corresponding path program 1 times [2024-11-28 02:17:53,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:53,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606117302] [2024-11-28 02:17:53,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:53,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:53,988 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 02:17:53,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:53,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606117302] [2024-11-28 02:17:53,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606117302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:53,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:53,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:17:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237032937] [2024-11-28 02:17:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:53,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:53,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:53,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:53,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:53,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2024-11-28 02:17:53,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 02:17:53,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:53,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2024-11-28 02:17:53,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:54,549 INFO L124 PetriNetUnfolderBase]: 488/2976 cut-off events. [2024-11-28 02:17:54,550 INFO L125 PetriNetUnfolderBase]: For 886/1127 co-relation queries the response was YES. [2024-11-28 02:17:54,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4079 conditions, 2976 events. 488/2976 cut-off events. For 886/1127 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 25675 event pairs, 185 based on Foata normal form. 9/2617 useless extension candidates. Maximal degree in co-relation 4067. Up to 580 conditions per place. [2024-11-28 02:17:54,577 INFO L140 encePairwiseOnDemand]: 92/99 looper letters, 19 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-11-28 02:17:54,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 326 flow [2024-11-28 02:17:54,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:54,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2024-11-28 02:17:54,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8249158249158249 [2024-11-28 02:17:54,583 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 246 flow. Second operand 3 states and 245 transitions. [2024-11-28 02:17:54,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 326 flow [2024-11-28 02:17:54,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 320 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:54,591 INFO L231 Difference]: Finished difference. Result has 100 places, 91 transitions, 286 flow [2024-11-28 02:17:54,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=100, PETRI_TRANSITIONS=91} [2024-11-28 02:17:54,593 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 0 predicate places. [2024-11-28 02:17:54,593 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 91 transitions, 286 flow [2024-11-28 02:17:54,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 02:17:54,593 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:54,594 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:54,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 02:17:54,594 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:54,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:54,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1943571376, now seen corresponding path program 1 times [2024-11-28 02:17:54,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:54,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730461100] [2024-11-28 02:17:54,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:54,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:54,770 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 02:17:54,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:54,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730461100] [2024-11-28 02:17:54,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730461100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:54,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:54,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:17:54,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340569255] [2024-11-28 02:17:54,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:54,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:17:54,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:54,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:17:54,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:17:54,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-28 02:17:54,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 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 02:17:54,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:54,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-28 02:17:54,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:55,600 INFO L124 PetriNetUnfolderBase]: 704/3458 cut-off events. [2024-11-28 02:17:55,600 INFO L125 PetriNetUnfolderBase]: For 1807/1906 co-relation queries the response was YES. [2024-11-28 02:17:55,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5888 conditions, 3458 events. 704/3458 cut-off events. For 1807/1906 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 30079 event pairs, 123 based on Foata normal form. 4/3155 useless extension candidates. Maximal degree in co-relation 5875. Up to 942 conditions per place. [2024-11-28 02:17:55,634 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 36 selfloop transitions, 8 changer transitions 0/107 dead transitions. [2024-11-28 02:17:55,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 440 flow [2024-11-28 02:17:55,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:17:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:17:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 653 transitions. [2024-11-28 02:17:55,637 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7328843995510662 [2024-11-28 02:17:55,637 INFO L175 Difference]: Start difference. First operand has 100 places, 91 transitions, 286 flow. Second operand 9 states and 653 transitions. [2024-11-28 02:17:55,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 440 flow [2024-11-28 02:17:55,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 107 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:17:55,644 INFO L231 Difference]: Finished difference. Result has 109 places, 94 transitions, 318 flow [2024-11-28 02:17:55,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=318, PETRI_PLACES=109, PETRI_TRANSITIONS=94} [2024-11-28 02:17:55,645 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2024-11-28 02:17:55,645 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 94 transitions, 318 flow [2024-11-28 02:17:55,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 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 02:17:55,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:55,646 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:55,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:17:55,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:55,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:55,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1976118276, now seen corresponding path program 1 times [2024-11-28 02:17:55,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:55,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732999222] [2024-11-28 02:17:55,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:55,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:55,866 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 02:17:55,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:55,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732999222] [2024-11-28 02:17:55,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732999222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:55,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:55,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:17:55,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203663960] [2024-11-28 02:17:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:55,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:17:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:55,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:17:55,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:17:55,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-28 02:17:55,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 94 transitions, 318 flow. Second operand has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 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 02:17:55,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:55,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-28 02:17:55,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:56,706 INFO L124 PetriNetUnfolderBase]: 616/3337 cut-off events. [2024-11-28 02:17:56,706 INFO L125 PetriNetUnfolderBase]: For 1628/1704 co-relation queries the response was YES. [2024-11-28 02:17:56,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5447 conditions, 3337 events. 616/3337 cut-off events. For 1628/1704 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 28238 event pairs, 119 based on Foata normal form. 8/3030 useless extension candidates. Maximal degree in co-relation 5431. Up to 711 conditions per place. [2024-11-28 02:17:56,735 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 44 selfloop transitions, 11 changer transitions 0/118 dead transitions. [2024-11-28 02:17:56,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 118 transitions, 528 flow [2024-11-28 02:17:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:17:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 02:17:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 868 transitions. [2024-11-28 02:17:56,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7306397306397306 [2024-11-28 02:17:56,738 INFO L175 Difference]: Start difference. First operand has 109 places, 94 transitions, 318 flow. Second operand 12 states and 868 transitions. [2024-11-28 02:17:56,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 118 transitions, 528 flow [2024-11-28 02:17:56,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 118 transitions, 510 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-28 02:17:56,745 INFO L231 Difference]: Finished difference. Result has 118 places, 96 transitions, 346 flow [2024-11-28 02:17:56,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=346, PETRI_PLACES=118, PETRI_TRANSITIONS=96} [2024-11-28 02:17:56,747 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 18 predicate places. [2024-11-28 02:17:56,747 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 96 transitions, 346 flow [2024-11-28 02:17:56,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 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 02:17:56,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:56,748 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:17:56,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 02:17:56,748 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:56,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2029691879, now seen corresponding path program 1 times [2024-11-28 02:17:56,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:56,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35460766] [2024-11-28 02:17:56,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:57,037 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 02:17:57,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:57,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35460766] [2024-11-28 02:17:57,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35460766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:57,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:57,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:17:57,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644190058] [2024-11-28 02:17:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:57,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:17:57,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:57,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:17:57,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:17:57,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-28 02:17:57,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 96 transitions, 346 flow. Second operand has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 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 02:17:57,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:57,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-28 02:17:57,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:57,446 INFO L124 PetriNetUnfolderBase]: 181/716 cut-off events. [2024-11-28 02:17:57,446 INFO L125 PetriNetUnfolderBase]: For 820/820 co-relation queries the response was YES. [2024-11-28 02:17:57,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 716 events. 181/716 cut-off events. For 820/820 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3719 event pairs, 0 based on Foata normal form. 16/732 useless extension candidates. Maximal degree in co-relation 1592. Up to 197 conditions per place. [2024-11-28 02:17:57,452 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 40 selfloop transitions, 13 changer transitions 0/92 dead transitions. [2024-11-28 02:17:57,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 92 transitions, 468 flow [2024-11-28 02:17:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:17:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 02:17:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-28 02:17:57,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7232323232323232 [2024-11-28 02:17:57,455 INFO L175 Difference]: Start difference. First operand has 118 places, 96 transitions, 346 flow. Second operand 15 states and 1074 transitions. [2024-11-28 02:17:57,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 92 transitions, 468 flow [2024-11-28 02:17:57,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 424 flow, removed 10 selfloop flow, removed 12 redundant places. [2024-11-28 02:17:57,461 INFO L231 Difference]: Finished difference. Result has 94 places, 62 transitions, 224 flow [2024-11-28 02:17:57,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=224, PETRI_PLACES=94, PETRI_TRANSITIONS=62} [2024-11-28 02:17:57,462 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-11-28 02:17:57,462 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 62 transitions, 224 flow [2024-11-28 02:17:57,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 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 02:17:57,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:57,463 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 02:17:57,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 02:17:57,463 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:17:57,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:57,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1122024002, now seen corresponding path program 1 times [2024-11-28 02:17:57,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:57,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036687003] [2024-11-28 02:17:57,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:57,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:57,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:17:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:17:57,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:17:57,535 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:17:57,535 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-28 02:17:57,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-28 02:17:57,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-28 02:17:57,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-28 02:17:57,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-28 02:17:57,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-28 02:17:57,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-28 02:17:57,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-28 02:17:57,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-28 02:17:57,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-28 02:17:57,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 02:17:57,537 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:57,538 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:17:57,538 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-28 02:17:57,565 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-28 02:17:57,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 269 flow [2024-11-28 02:17:57,689 INFO L124 PetriNetUnfolderBase]: 104/972 cut-off events. [2024-11-28 02:17:57,689 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-28 02:17:57,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 972 events. 104/972 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4474 event pairs, 23 based on Foata normal form. 0/834 useless extension candidates. Maximal degree in co-relation 597. Up to 80 conditions per place. [2024-11-28 02:17:57,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 269 flow [2024-11-28 02:17:57,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 107 transitions, 269 flow [2024-11-28 02:17:57,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:17:57,697 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:17:57,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-28 02:17:57,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:17:57,699 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:17:57,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:17:57,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:57,700 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:57,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:17:57,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:57,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1014753129, now seen corresponding path program 1 times [2024-11-28 02:17:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:57,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093620487] [2024-11-28 02:17:57,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:57,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:57,713 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 02:17:57,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093620487] [2024-11-28 02:17:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093620487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:57,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:57,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:17:57,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877795296] [2024-11-28 02:17:57,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:57,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:17:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:57,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:17:57,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:17:57,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2024-11-28 02:17:57,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 269 flow. Second operand has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 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 02:17:57,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:57,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2024-11-28 02:17:57,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:58,328 INFO L124 PetriNetUnfolderBase]: 622/3788 cut-off events. [2024-11-28 02:17:58,328 INFO L125 PetriNetUnfolderBase]: For 1678/2984 co-relation queries the response was YES. [2024-11-28 02:17:58,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5251 conditions, 3788 events. 622/3788 cut-off events. For 1678/2984 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 33561 event pairs, 527 based on Foata normal form. 306/3603 useless extension candidates. Maximal degree in co-relation 3055. Up to 892 conditions per place. [2024-11-28 02:17:58,357 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 16 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2024-11-28 02:17:58,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 95 transitions, 277 flow [2024-11-28 02:17:58,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:17:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:17:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 186 transitions. [2024-11-28 02:17:58,358 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8691588785046729 [2024-11-28 02:17:58,358 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 269 flow. Second operand 2 states and 186 transitions. [2024-11-28 02:17:58,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 95 transitions, 277 flow [2024-11-28 02:17:58,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:58,364 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 245 flow [2024-11-28 02:17:58,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-11-28 02:17:58,366 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places. [2024-11-28 02:17:58,367 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 245 flow [2024-11-28 02:17:58,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 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 02:17:58,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:58,367 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:58,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 02:17:58,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:17:58,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1559798962, now seen corresponding path program 1 times [2024-11-28 02:17:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:58,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130560319] [2024-11-28 02:17:58,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:58,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:58,399 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 02:17:58,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:58,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130560319] [2024-11-28 02:17:58,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130560319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:58,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:58,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:17:58,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015129924] [2024-11-28 02:17:58,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:58,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:17:58,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:58,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:17:58,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:58,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2024-11-28 02:17:58,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 02:17:58,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:17:58,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2024-11-28 02:17:58,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:17:59,810 INFO L124 PetriNetUnfolderBase]: 1439/8085 cut-off events. [2024-11-28 02:17:59,810 INFO L125 PetriNetUnfolderBase]: For 1886/1886 co-relation queries the response was YES. [2024-11-28 02:17:59,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10772 conditions, 8085 events. 1439/8085 cut-off events. For 1886/1886 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 81629 event pairs, 1050 based on Foata normal form. 1/7383 useless extension candidates. Maximal degree in co-relation 10764. Up to 2112 conditions per place. [2024-11-28 02:17:59,863 INFO L140 encePairwiseOnDemand]: 104/107 looper letters, 21 selfloop transitions, 2 changer transitions 3/97 dead transitions. [2024-11-28 02:17:59,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 97 transitions, 297 flow [2024-11-28 02:17:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:17:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2024-11-28 02:17:59,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7694704049844237 [2024-11-28 02:17:59,865 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 245 flow. Second operand 3 states and 247 transitions. [2024-11-28 02:17:59,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 97 transitions, 297 flow [2024-11-28 02:17:59,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 97 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:17:59,868 INFO L231 Difference]: Finished difference. Result has 105 places, 93 transitions, 251 flow [2024-11-28 02:17:59,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=105, PETRI_TRANSITIONS=93} [2024-11-28 02:17:59,869 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places. [2024-11-28 02:17:59,869 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 93 transitions, 251 flow [2024-11-28 02:17:59,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 02:17:59,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:17:59,871 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 02:17:59,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 02:17:59,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:17:59,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:59,872 INFO L85 PathProgramCache]: Analyzing trace with hash 727521890, now seen corresponding path program 1 times [2024-11-28 02:17:59,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:59,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903981929] [2024-11-28 02:17:59,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:59,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:00,147 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 02:18:00,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903981929] [2024-11-28 02:18:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903981929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:00,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:18:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747707935] [2024-11-28 02:18:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:00,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:18:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:00,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:18:00,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:18:00,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107 [2024-11-28 02:18:00,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 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 02:18:00,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:00,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107 [2024-11-28 02:18:00,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:01,784 INFO L124 PetriNetUnfolderBase]: 3704/9558 cut-off events. [2024-11-28 02:18:01,784 INFO L125 PetriNetUnfolderBase]: For 1820/1820 co-relation queries the response was YES. [2024-11-28 02:18:01,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15928 conditions, 9558 events. 3704/9558 cut-off events. For 1820/1820 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 81015 event pairs, 460 based on Foata normal form. 0/8948 useless extension candidates. Maximal degree in co-relation 15918. Up to 4549 conditions per place. [2024-11-28 02:18:01,852 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 46 selfloop transitions, 6 changer transitions 2/112 dead transitions. [2024-11-28 02:18:01,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 395 flow [2024-11-28 02:18:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:18:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:18:01,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 425 transitions. [2024-11-28 02:18:01,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.661993769470405 [2024-11-28 02:18:01,855 INFO L175 Difference]: Start difference. First operand has 105 places, 93 transitions, 251 flow. Second operand 6 states and 425 transitions. [2024-11-28 02:18:01,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 395 flow [2024-11-28 02:18:01,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 112 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:18:01,859 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 255 flow [2024-11-28 02:18:01,859 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=255, PETRI_PLACES=105, PETRI_TRANSITIONS=90} [2024-11-28 02:18:01,859 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places. [2024-11-28 02:18:01,860 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 255 flow [2024-11-28 02:18:01,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 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 02:18:01,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:01,860 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] [2024-11-28 02:18:01,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 02:18:01,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:01,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 174887418, now seen corresponding path program 1 times [2024-11-28 02:18:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923123934] [2024-11-28 02:18:01,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:01,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:01,933 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 02:18:01,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:01,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923123934] [2024-11-28 02:18:01,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923123934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:01,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:01,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:18:01,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97100208] [2024-11-28 02:18:01,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:01,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:18:01,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:01,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:18:01,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:18:02,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-28 02:18:02,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 255 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 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 02:18:02,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:02,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-28 02:18:02,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:03,153 INFO L124 PetriNetUnfolderBase]: 1288/6659 cut-off events. [2024-11-28 02:18:03,153 INFO L125 PetriNetUnfolderBase]: For 1952/1952 co-relation queries the response was YES. [2024-11-28 02:18:03,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9505 conditions, 6659 events. 1288/6659 cut-off events. For 1952/1952 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 63376 event pairs, 921 based on Foata normal form. 2/5999 useless extension candidates. Maximal degree in co-relation 9495. Up to 1817 conditions per place. [2024-11-28 02:18:03,205 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 28 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2024-11-28 02:18:03,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 99 transitions, 343 flow [2024-11-28 02:18:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:18:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:18:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 466 transitions. [2024-11-28 02:18:03,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7258566978193146 [2024-11-28 02:18:03,207 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 255 flow. Second operand 6 states and 466 transitions. [2024-11-28 02:18:03,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 99 transitions, 343 flow [2024-11-28 02:18:03,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 99 transitions, 329 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:18:03,217 INFO L231 Difference]: Finished difference. Result has 106 places, 93 transitions, 275 flow [2024-11-28 02:18:03,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=106, PETRI_TRANSITIONS=93} [2024-11-28 02:18:03,218 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2024-11-28 02:18:03,219 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 93 transitions, 275 flow [2024-11-28 02:18:03,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 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 02:18:03,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:03,222 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:03,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 02:18:03,222 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:03,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2120954335, now seen corresponding path program 1 times [2024-11-28 02:18:03,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:03,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131587179] [2024-11-28 02:18:03,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:03,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:03,276 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 02:18:03,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:03,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131587179] [2024-11-28 02:18:03,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131587179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:03,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:03,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:18:03,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961693994] [2024-11-28 02:18:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:03,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:18:03,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:03,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:18:03,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:18:03,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2024-11-28 02:18:03,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 93 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 02:18:03,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:03,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2024-11-28 02:18:03,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:04,811 INFO L124 PetriNetUnfolderBase]: 1754/8829 cut-off events. [2024-11-28 02:18:04,811 INFO L125 PetriNetUnfolderBase]: For 3134/3973 co-relation queries the response was YES. [2024-11-28 02:18:04,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12392 conditions, 8829 events. 1754/8829 cut-off events. For 3134/3973 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 92492 event pairs, 727 based on Foata normal form. 14/7777 useless extension candidates. Maximal degree in co-relation 12379. Up to 1919 conditions per place. [2024-11-28 02:18:04,867 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 23 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2024-11-28 02:18:04,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 372 flow [2024-11-28 02:18:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:18:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:18:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-28 02:18:04,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8161993769470405 [2024-11-28 02:18:04,869 INFO L175 Difference]: Start difference. First operand has 106 places, 93 transitions, 275 flow. Second operand 3 states and 262 transitions. [2024-11-28 02:18:04,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 372 flow [2024-11-28 02:18:04,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 366 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:18:04,876 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 323 flow [2024-11-28 02:18:04,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2024-11-28 02:18:04,877 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -1 predicate places. [2024-11-28 02:18:04,877 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 323 flow [2024-11-28 02:18:04,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 02:18:04,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:04,878 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:04,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 02:18:04,878 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:04,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2084313310, now seen corresponding path program 1 times [2024-11-28 02:18:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:04,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422213638] [2024-11-28 02:18:04,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:04,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:04,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:18:04,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:04,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422213638] [2024-11-28 02:18:04,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422213638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:04,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:04,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:18:04,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448219563] [2024-11-28 02:18:04,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:04,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:18:04,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:04,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:18:04,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:18:05,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-28 02:18:05,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 323 flow. Second operand has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 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 02:18:05,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:05,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-28 02:18:05,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:06,548 INFO L124 PetriNetUnfolderBase]: 2370/9833 cut-off events. [2024-11-28 02:18:06,548 INFO L125 PetriNetUnfolderBase]: For 6093/6429 co-relation queries the response was YES. [2024-11-28 02:18:06,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17304 conditions, 9833 events. 2370/9833 cut-off events. For 6093/6429 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 99756 event pairs, 612 based on Foata normal form. 4/8888 useless extension candidates. Maximal degree in co-relation 17290. Up to 3107 conditions per place. [2024-11-28 02:18:06,606 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 40 selfloop transitions, 8 changer transitions 0/115 dead transitions. [2024-11-28 02:18:06,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 115 transitions, 485 flow [2024-11-28 02:18:06,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:18:06,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:18:06,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2024-11-28 02:18:06,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7185877466251298 [2024-11-28 02:18:06,609 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 323 flow. Second operand 9 states and 692 transitions. [2024-11-28 02:18:06,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 115 transitions, 485 flow [2024-11-28 02:18:06,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:18:06,619 INFO L231 Difference]: Finished difference. Result has 117 places, 102 transitions, 353 flow [2024-11-28 02:18:06,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=353, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2024-11-28 02:18:06,620 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 8 predicate places. [2024-11-28 02:18:06,621 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 353 flow [2024-11-28 02:18:06,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 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 02:18:06,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:06,621 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:06,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 02:18:06,622 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:06,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash -105295716, now seen corresponding path program 1 times [2024-11-28 02:18:06,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:06,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057122190] [2024-11-28 02:18:06,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:06,798 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 02:18:06,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057122190] [2024-11-28 02:18:06,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057122190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:06,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:06,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:18:06,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199900913] [2024-11-28 02:18:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:06,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:18:06,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:06,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:18:06,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:18:06,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-28 02:18:06,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 353 flow. Second operand has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 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 02:18:06,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:06,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-28 02:18:06,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:08,115 INFO L124 PetriNetUnfolderBase]: 2282/9676 cut-off events. [2024-11-28 02:18:08,115 INFO L125 PetriNetUnfolderBase]: For 5452/5765 co-relation queries the response was YES. [2024-11-28 02:18:08,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16483 conditions, 9676 events. 2282/9676 cut-off events. For 5452/5765 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 100063 event pairs, 632 based on Foata normal form. 8/8704 useless extension candidates. Maximal degree in co-relation 16466. Up to 2876 conditions per place. [2024-11-28 02:18:08,176 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 50 selfloop transitions, 11 changer transitions 0/128 dead transitions. [2024-11-28 02:18:08,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 589 flow [2024-11-28 02:18:08,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:18:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 02:18:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 921 transitions. [2024-11-28 02:18:08,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2024-11-28 02:18:08,179 INFO L175 Difference]: Start difference. First operand has 117 places, 102 transitions, 353 flow. Second operand 12 states and 921 transitions. [2024-11-28 02:18:08,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 589 flow [2024-11-28 02:18:08,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 128 transitions, 571 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-28 02:18:08,186 INFO L231 Difference]: Finished difference. Result has 126 places, 105 transitions, 391 flow [2024-11-28 02:18:08,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=391, PETRI_PLACES=126, PETRI_TRANSITIONS=105} [2024-11-28 02:18:08,187 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 17 predicate places. [2024-11-28 02:18:08,187 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 105 transitions, 391 flow [2024-11-28 02:18:08,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 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 02:18:08,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:08,188 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:08,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 02:18:08,188 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:08,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:08,189 INFO L85 PathProgramCache]: Analyzing trace with hash -990359721, now seen corresponding path program 1 times [2024-11-28 02:18:08,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:08,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424462517] [2024-11-28 02:18:08,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:18:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424462517] [2024-11-28 02:18:08,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424462517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:08,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:08,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:18:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942623750] [2024-11-28 02:18:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:08,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:18:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:08,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:18:08,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:18:08,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-28 02:18:08,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 105 transitions, 391 flow. Second operand has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 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 02:18:08,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:08,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-28 02:18:08,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:10,350 INFO L124 PetriNetUnfolderBase]: 2037/9449 cut-off events. [2024-11-28 02:18:10,350 INFO L125 PetriNetUnfolderBase]: For 5515/5752 co-relation queries the response was YES. [2024-11-28 02:18:10,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15841 conditions, 9449 events. 2037/9449 cut-off events. For 5515/5752 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 97417 event pairs, 542 based on Foata normal form. 16/8516 useless extension candidates. Maximal degree in co-relation 15821. Up to 2296 conditions per place. [2024-11-28 02:18:10,415 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 61 selfloop transitions, 14 changer transitions 0/142 dead transitions. [2024-11-28 02:18:10,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 142 transitions, 697 flow [2024-11-28 02:18:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:18:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 02:18:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1151 transitions. [2024-11-28 02:18:10,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7171339563862928 [2024-11-28 02:18:10,418 INFO L175 Difference]: Start difference. First operand has 126 places, 105 transitions, 391 flow. Second operand 15 states and 1151 transitions. [2024-11-28 02:18:10,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 142 transitions, 697 flow [2024-11-28 02:18:10,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 667 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-28 02:18:10,426 INFO L231 Difference]: Finished difference. Result has 135 places, 107 transitions, 417 flow [2024-11-28 02:18:10,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=417, PETRI_PLACES=135, PETRI_TRANSITIONS=107} [2024-11-28 02:18:10,427 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 26 predicate places. [2024-11-28 02:18:10,428 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 107 transitions, 417 flow [2024-11-28 02:18:10,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 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 02:18:10,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:10,429 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 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 02:18:10,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 02:18:10,429 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:10,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1466381203, now seen corresponding path program 1 times [2024-11-28 02:18:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:10,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096196680] [2024-11-28 02:18:10,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:10,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:18:10,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096196680] [2024-11-28 02:18:10,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096196680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:10,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:10,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:18:10,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359103340] [2024-11-28 02:18:10,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:10,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:18:10,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:10,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:18:10,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:18:10,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-28 02:18:10,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 107 transitions, 417 flow. Second operand has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 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 02:18:10,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:10,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-28 02:18:10,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:11,369 INFO L124 PetriNetUnfolderBase]: 485/1596 cut-off events. [2024-11-28 02:18:11,369 INFO L125 PetriNetUnfolderBase]: For 2656/2656 co-relation queries the response was YES. [2024-11-28 02:18:11,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3799 conditions, 1596 events. 485/1596 cut-off events. For 2656/2656 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10110 event pairs, 0 based on Foata normal form. 32/1628 useless extension candidates. Maximal degree in co-relation 3776. Up to 517 conditions per place. [2024-11-28 02:18:11,384 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 57 selfloop transitions, 16 changer transitions 0/116 dead transitions. [2024-11-28 02:18:11,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 116 transitions, 628 flow [2024-11-28 02:18:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:18:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 02:18:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1370 transitions. [2024-11-28 02:18:11,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.711318795430945 [2024-11-28 02:18:11,387 INFO L175 Difference]: Start difference. First operand has 135 places, 107 transitions, 417 flow. Second operand 18 states and 1370 transitions. [2024-11-28 02:18:11,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 116 transitions, 628 flow [2024-11-28 02:18:11,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 116 transitions, 564 flow, removed 16 selfloop flow, removed 16 redundant places. [2024-11-28 02:18:11,397 INFO L231 Difference]: Finished difference. Result has 110 places, 71 transitions, 270 flow [2024-11-28 02:18:11,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=270, PETRI_PLACES=110, PETRI_TRANSITIONS=71} [2024-11-28 02:18:11,398 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 1 predicate places. [2024-11-28 02:18:11,398 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 71 transitions, 270 flow [2024-11-28 02:18:11,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 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 02:18:11,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:11,399 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:11,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 02:18:11,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 02:18:11,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1397492228, now seen corresponding path program 1 times [2024-11-28 02:18:11,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:11,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127309267] [2024-11-28 02:18:11,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:18:11,448 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:18:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:18:11,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:18:11,509 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-28 02:18:11,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-28 02:18:11,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-28 02:18:11,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-28 02:18:11,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-28 02:18:11,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-28 02:18:11,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 02:18:11,510 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:11,512 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:18:11,513 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-28 02:18:11,548 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-28 02:18:11,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 115 transitions, 302 flow [2024-11-28 02:18:11,798 INFO L124 PetriNetUnfolderBase]: 220/1792 cut-off events. [2024-11-28 02:18:11,798 INFO L125 PetriNetUnfolderBase]: For 242/242 co-relation queries the response was YES. [2024-11-28 02:18:11,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 1792 events. 220/1792 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10607 event pairs, 72 based on Foata normal form. 0/1551 useless extension candidates. Maximal degree in co-relation 1071. Up to 192 conditions per place. [2024-11-28 02:18:11,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 115 transitions, 302 flow [2024-11-28 02:18:11,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 115 transitions, 302 flow [2024-11-28 02:18:11,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:18:11,813 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:18:11,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-28 02:18:11,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:18:11,815 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:18:11,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:18:11,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:11,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:11,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:11,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:11,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1080404983, now seen corresponding path program 1 times [2024-11-28 02:18:11,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:11,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265293954] [2024-11-28 02:18:11,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:11,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:11,829 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 02:18:11,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:11,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265293954] [2024-11-28 02:18:11,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265293954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:11,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:11,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:18:11,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039837288] [2024-11-28 02:18:11,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:11,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:18:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:11,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:18:11,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:18:11,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 115 [2024-11-28 02:18:11,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 302 flow. Second operand has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 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 02:18:11,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:11,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 115 [2024-11-28 02:18:11,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:13,010 INFO L124 PetriNetUnfolderBase]: 2323/11440 cut-off events. [2024-11-28 02:18:13,010 INFO L125 PetriNetUnfolderBase]: For 5913/11239 co-relation queries the response was YES. [2024-11-28 02:18:13,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16399 conditions, 11440 events. 2323/11440 cut-off events. For 5913/11239 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 125879 event pairs, 2016 based on Foata normal form. 899/10837 useless extension candidates. Maximal degree in co-relation 9915. Up to 3110 conditions per place. [2024-11-28 02:18:13,077 INFO L140 encePairwiseOnDemand]: 104/115 looper letters, 19 selfloop transitions, 0 changer transitions 0/102 dead transitions. [2024-11-28 02:18:13,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 102 transitions, 314 flow [2024-11-28 02:18:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:18:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:18:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 198 transitions. [2024-11-28 02:18:13,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8608695652173913 [2024-11-28 02:18:13,078 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 302 flow. Second operand 2 states and 198 transitions. [2024-11-28 02:18:13,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 102 transitions, 314 flow [2024-11-28 02:18:13,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 102 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:18:13,080 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 276 flow [2024-11-28 02:18:13,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=276, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2024-11-28 02:18:13,081 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-11-28 02:18:13,081 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 276 flow [2024-11-28 02:18:13,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 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 02:18:13,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:13,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:13,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 02:18:13,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:13,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:13,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2140123077, now seen corresponding path program 1 times [2024-11-28 02:18:13,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:13,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689655570] [2024-11-28 02:18:13,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:13,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:13,099 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 02:18:13,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:13,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689655570] [2024-11-28 02:18:13,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689655570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:13,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:13,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:18:13,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83087232] [2024-11-28 02:18:13,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:13,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:18:13,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:13,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:18:13,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:18:13,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2024-11-28 02:18:13,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:13,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:13,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2024-11-28 02:18:13,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:16,138 INFO L124 PetriNetUnfolderBase]: 4800/23166 cut-off events. [2024-11-28 02:18:16,138 INFO L125 PetriNetUnfolderBase]: For 6342/6342 co-relation queries the response was YES. [2024-11-28 02:18:16,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31656 conditions, 23166 events. 4800/23166 cut-off events. For 6342/6342 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 277180 event pairs, 4436 based on Foata normal form. 1/21274 useless extension candidates. Maximal degree in co-relation 31647. Up to 6637 conditions per place. [2024-11-28 02:18:16,235 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 24 selfloop transitions, 2 changer transitions 3/104 dead transitions. [2024-11-28 02:18:16,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 104 transitions, 334 flow [2024-11-28 02:18:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:18:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:18:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-28 02:18:16,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7594202898550725 [2024-11-28 02:18:16,236 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 276 flow. Second operand 3 states and 262 transitions. [2024-11-28 02:18:16,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 104 transitions, 334 flow [2024-11-28 02:18:16,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 104 transitions, 334 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:18:16,240 INFO L231 Difference]: Finished difference. Result has 113 places, 100 transitions, 282 flow [2024-11-28 02:18:16,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=113, PETRI_TRANSITIONS=100} [2024-11-28 02:18:16,240 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-11-28 02:18:16,241 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 100 transitions, 282 flow [2024-11-28 02:18:16,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:16,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:16,241 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 02:18:16,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 02:18:16,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:16,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:16,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1562259029, now seen corresponding path program 1 times [2024-11-28 02:18:16,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:16,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046196840] [2024-11-28 02:18:16,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:16,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:16,447 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 02:18:16,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:16,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046196840] [2024-11-28 02:18:16,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046196840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:16,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:16,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:18:16,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858865201] [2024-11-28 02:18:16,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:16,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:18:16,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:16,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:18:16,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:18:16,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 115 [2024-11-28 02:18:16,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 100 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 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 02:18:16,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:16,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 115 [2024-11-28 02:18:16,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:20,740 INFO L124 PetriNetUnfolderBase]: 12237/28343 cut-off events. [2024-11-28 02:18:20,741 INFO L125 PetriNetUnfolderBase]: For 6163/6163 co-relation queries the response was YES. [2024-11-28 02:18:20,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48080 conditions, 28343 events. 12237/28343 cut-off events. For 6163/6163 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 268875 event pairs, 1392 based on Foata normal form. 0/26633 useless extension candidates. Maximal degree in co-relation 48069. Up to 15006 conditions per place. [2024-11-28 02:18:20,879 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 53 selfloop transitions, 6 changer transitions 2/123 dead transitions. [2024-11-28 02:18:20,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 123 transitions, 448 flow [2024-11-28 02:18:20,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:18:20,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:18:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 456 transitions. [2024-11-28 02:18:20,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6608695652173913 [2024-11-28 02:18:20,881 INFO L175 Difference]: Start difference. First operand has 113 places, 100 transitions, 282 flow. Second operand 6 states and 456 transitions. [2024-11-28 02:18:20,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 123 transitions, 448 flow [2024-11-28 02:18:20,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 446 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:18:20,886 INFO L231 Difference]: Finished difference. Result has 113 places, 97 transitions, 286 flow [2024-11-28 02:18:20,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=113, PETRI_TRANSITIONS=97} [2024-11-28 02:18:20,887 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-11-28 02:18:20,887 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 97 transitions, 286 flow [2024-11-28 02:18:20,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 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 02:18:20,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:20,888 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] [2024-11-28 02:18:20,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 02:18:20,888 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:20,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1677900199, now seen corresponding path program 1 times [2024-11-28 02:18:20,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:20,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718549247] [2024-11-28 02:18:20,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:20,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:20,947 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 02:18:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718549247] [2024-11-28 02:18:20,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718549247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:20,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:20,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:18:20,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295660309] [2024-11-28 02:18:20,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:20,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:18:20,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:20,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:18:20,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:18:20,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-28 02:18:20,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 97 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 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 02:18:20,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:20,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-28 02:18:20,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:24,002 INFO L124 PetriNetUnfolderBase]: 3980/18675 cut-off events. [2024-11-28 02:18:24,003 INFO L125 PetriNetUnfolderBase]: For 6485/6485 co-relation queries the response was YES. [2024-11-28 02:18:24,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26753 conditions, 18675 events. 3980/18675 cut-off events. For 6485/6485 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 211333 event pairs, 2455 based on Foata normal form. 2/16849 useless extension candidates. Maximal degree in co-relation 26742. Up to 5315 conditions per place. [2024-11-28 02:18:24,086 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/106 dead transitions. [2024-11-28 02:18:24,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 106 transitions, 380 flow [2024-11-28 02:18:24,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:18:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:18:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 493 transitions. [2024-11-28 02:18:24,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7144927536231884 [2024-11-28 02:18:24,095 INFO L175 Difference]: Start difference. First operand has 113 places, 97 transitions, 286 flow. Second operand 6 states and 493 transitions. [2024-11-28 02:18:24,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 106 transitions, 380 flow [2024-11-28 02:18:24,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 366 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:18:24,101 INFO L231 Difference]: Finished difference. Result has 114 places, 100 transitions, 306 flow [2024-11-28 02:18:24,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=114, PETRI_TRANSITIONS=100} [2024-11-28 02:18:24,102 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2024-11-28 02:18:24,102 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 100 transitions, 306 flow [2024-11-28 02:18:24,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 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 02:18:24,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:24,102 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:24,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 02:18:24,103 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:24,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:24,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1971780840, now seen corresponding path program 1 times [2024-11-28 02:18:24,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:24,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813295368] [2024-11-28 02:18:24,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:24,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:24,139 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 02:18:24,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:24,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813295368] [2024-11-28 02:18:24,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813295368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:24,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:24,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:18:24,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194191109] [2024-11-28 02:18:24,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:24,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:18:24,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:24,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:18:24,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:18:24,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 115 [2024-11-28 02:18:24,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 100 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 02:18:24,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:24,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 115 [2024-11-28 02:18:24,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:27,891 INFO L124 PetriNetUnfolderBase]: 5985/26381 cut-off events. [2024-11-28 02:18:27,891 INFO L125 PetriNetUnfolderBase]: For 10343/12929 co-relation queries the response was YES. [2024-11-28 02:18:28,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37849 conditions, 26381 events. 5985/26381 cut-off events. For 10343/12929 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 324316 event pairs, 2690 based on Foata normal form. 20/23295 useless extension candidates. Maximal degree in co-relation 37835. Up to 6163 conditions per place. [2024-11-28 02:18:28,111 INFO L140 encePairwiseOnDemand]: 106/115 looper letters, 27 selfloop transitions, 8 changer transitions 0/113 dead transitions. [2024-11-28 02:18:28,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 113 transitions, 420 flow [2024-11-28 02:18:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:18:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:18:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-28 02:18:28,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.808695652173913 [2024-11-28 02:18:28,112 INFO L175 Difference]: Start difference. First operand has 114 places, 100 transitions, 306 flow. Second operand 3 states and 279 transitions. [2024-11-28 02:18:28,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 113 transitions, 420 flow [2024-11-28 02:18:28,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 113 transitions, 414 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:18:28,131 INFO L231 Difference]: Finished difference. Result has 116 places, 107 transitions, 362 flow [2024-11-28 02:18:28,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=116, PETRI_TRANSITIONS=107} [2024-11-28 02:18:28,132 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -2 predicate places. [2024-11-28 02:18:28,132 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 107 transitions, 362 flow [2024-11-28 02:18:28,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 02:18:28,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:28,133 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:28,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 02:18:28,133 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:28,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:28,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1560607504, now seen corresponding path program 1 times [2024-11-28 02:18:28,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:28,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478857872] [2024-11-28 02:18:28,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:28,227 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 02:18:28,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:28,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478857872] [2024-11-28 02:18:28,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478857872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:28,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:28,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:18:28,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699992416] [2024-11-28 02:18:28,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:28,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:18:28,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:28,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:18:28,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:18:28,308 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-28 02:18:28,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 107 transitions, 362 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:28,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:28,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-28 02:18:28,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:32,739 INFO L124 PetriNetUnfolderBase]: 7561/28064 cut-off events. [2024-11-28 02:18:32,739 INFO L125 PetriNetUnfolderBase]: For 19939/20997 co-relation queries the response was YES. [2024-11-28 02:18:32,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50526 conditions, 28064 events. 7561/28064 cut-off events. For 19939/20997 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 326852 event pairs, 2561 based on Foata normal form. 4/25158 useless extension candidates. Maximal degree in co-relation 50511. Up to 9621 conditions per place. [2024-11-28 02:18:32,914 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 44 selfloop transitions, 8 changer transitions 0/123 dead transitions. [2024-11-28 02:18:32,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 123 transitions, 532 flow [2024-11-28 02:18:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:18:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:18:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 731 transitions. [2024-11-28 02:18:32,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.706280193236715 [2024-11-28 02:18:32,918 INFO L175 Difference]: Start difference. First operand has 116 places, 107 transitions, 362 flow. Second operand 9 states and 731 transitions. [2024-11-28 02:18:32,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 123 transitions, 532 flow [2024-11-28 02:18:32,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 123 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:18:32,932 INFO L231 Difference]: Finished difference. Result has 125 places, 110 transitions, 390 flow [2024-11-28 02:18:32,932 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=390, PETRI_PLACES=125, PETRI_TRANSITIONS=110} [2024-11-28 02:18:32,932 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 7 predicate places. [2024-11-28 02:18:32,933 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 390 flow [2024-11-28 02:18:32,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:32,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:32,933 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:32,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 02:18:32,934 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:32,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash -942845744, now seen corresponding path program 1 times [2024-11-28 02:18:32,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:32,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674887446] [2024-11-28 02:18:32,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:32,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:33,084 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 02:18:33,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:33,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674887446] [2024-11-28 02:18:33,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674887446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:33,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:33,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:18:33,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042624234] [2024-11-28 02:18:33,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:33,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:18:33,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:33,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:18:33,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:18:33,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-28 02:18:33,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 390 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:33,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:33,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-28 02:18:33,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:37,468 INFO L124 PetriNetUnfolderBase]: 7473/27953 cut-off events. [2024-11-28 02:18:37,469 INFO L125 PetriNetUnfolderBase]: For 17379/18414 co-relation queries the response was YES. [2024-11-28 02:18:37,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48555 conditions, 27953 events. 7473/27953 cut-off events. For 17379/18414 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 329379 event pairs, 2019 based on Foata normal form. 8/24973 useless extension candidates. Maximal degree in co-relation 48537. Up to 9390 conditions per place. [2024-11-28 02:18:37,956 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 54 selfloop transitions, 11 changer transitions 0/136 dead transitions. [2024-11-28 02:18:37,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 136 transitions, 634 flow [2024-11-28 02:18:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:18:37,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 02:18:37,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 972 transitions. [2024-11-28 02:18:37,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7043478260869566 [2024-11-28 02:18:37,958 INFO L175 Difference]: Start difference. First operand has 125 places, 110 transitions, 390 flow. Second operand 12 states and 972 transitions. [2024-11-28 02:18:37,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 136 transitions, 634 flow [2024-11-28 02:18:37,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 616 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-28 02:18:37,964 INFO L231 Difference]: Finished difference. Result has 134 places, 113 transitions, 428 flow [2024-11-28 02:18:37,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=428, PETRI_PLACES=134, PETRI_TRANSITIONS=113} [2024-11-28 02:18:37,965 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2024-11-28 02:18:37,965 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 113 transitions, 428 flow [2024-11-28 02:18:37,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:37,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:37,965 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:18:37,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-28 02:18:37,966 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:37,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:37,966 INFO L85 PathProgramCache]: Analyzing trace with hash 654774897, now seen corresponding path program 1 times [2024-11-28 02:18:37,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:37,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813247315] [2024-11-28 02:18:37,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:37,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:38,171 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 02:18:38,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:38,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813247315] [2024-11-28 02:18:38,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813247315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:38,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:38,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:18:38,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423734953] [2024-11-28 02:18:38,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:38,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:18:38,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:38,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:18:38,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:18:38,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-28 02:18:38,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 113 transitions, 428 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:38,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:38,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-28 02:18:38,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:42,612 INFO L124 PetriNetUnfolderBase]: 7228/27704 cut-off events. [2024-11-28 02:18:42,612 INFO L125 PetriNetUnfolderBase]: For 18385/19344 co-relation queries the response was YES. [2024-11-28 02:18:42,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48147 conditions, 27704 events. 7228/27704 cut-off events. For 18385/19344 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 333329 event pairs, 2100 based on Foata normal form. 16/24771 useless extension candidates. Maximal degree in co-relation 48126. Up to 8810 conditions per place. [2024-11-28 02:18:42,784 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 67 selfloop transitions, 14 changer transitions 0/152 dead transitions. [2024-11-28 02:18:42,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 152 transitions, 764 flow [2024-11-28 02:18:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:18:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 02:18:42,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1216 transitions. [2024-11-28 02:18:42,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7049275362318841 [2024-11-28 02:18:42,786 INFO L175 Difference]: Start difference. First operand has 134 places, 113 transitions, 428 flow. Second operand 15 states and 1216 transitions. [2024-11-28 02:18:42,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 152 transitions, 764 flow [2024-11-28 02:18:42,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 152 transitions, 734 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-28 02:18:42,795 INFO L231 Difference]: Finished difference. Result has 143 places, 116 transitions, 466 flow [2024-11-28 02:18:42,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=466, PETRI_PLACES=143, PETRI_TRANSITIONS=116} [2024-11-28 02:18:42,796 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2024-11-28 02:18:42,796 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 116 transitions, 466 flow [2024-11-28 02:18:42,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:18:42,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:42,797 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 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 02:18:42,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 02:18:42,797 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:42,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:42,798 INFO L85 PathProgramCache]: Analyzing trace with hash -8086573, now seen corresponding path program 1 times [2024-11-28 02:18:42,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:42,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271541611] [2024-11-28 02:18:42,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:42,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:43,081 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 02:18:43,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:43,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271541611] [2024-11-28 02:18:43,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271541611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:43,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:43,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:18:43,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787952651] [2024-11-28 02:18:43,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:43,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:18:43,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:43,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:18:43,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:18:43,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-28 02:18:43,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 116 transitions, 466 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 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 02:18:43,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:43,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-28 02:18:43,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:48,017 INFO L124 PetriNetUnfolderBase]: 6602/27953 cut-off events. [2024-11-28 02:18:48,017 INFO L125 PetriNetUnfolderBase]: For 19092/19814 co-relation queries the response was YES. [2024-11-28 02:18:48,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47223 conditions, 27953 events. 6602/27953 cut-off events. For 19092/19814 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 341465 event pairs, 1919 based on Foata normal form. 32/25093 useless extension candidates. Maximal degree in co-relation 47199. Up to 7417 conditions per place. [2024-11-28 02:18:48,187 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 81 selfloop transitions, 17 changer transitions 0/169 dead transitions. [2024-11-28 02:18:48,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 169 transitions, 886 flow [2024-11-28 02:18:48,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:18:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 02:18:48,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1461 transitions. [2024-11-28 02:18:48,190 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7057971014492753 [2024-11-28 02:18:48,190 INFO L175 Difference]: Start difference. First operand has 143 places, 116 transitions, 466 flow. Second operand 18 states and 1461 transitions. [2024-11-28 02:18:48,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 169 transitions, 886 flow [2024-11-28 02:18:48,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 169 transitions, 844 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-11-28 02:18:48,201 INFO L231 Difference]: Finished difference. Result has 152 places, 118 transitions, 490 flow [2024-11-28 02:18:48,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=490, PETRI_PLACES=152, PETRI_TRANSITIONS=118} [2024-11-28 02:18:48,202 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 34 predicate places. [2024-11-28 02:18:48,202 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 118 transitions, 490 flow [2024-11-28 02:18:48,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 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 02:18:48,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:48,203 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 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 02:18:48,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 02:18:48,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:48,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:48,205 INFO L85 PathProgramCache]: Analyzing trace with hash 612665492, now seen corresponding path program 1 times [2024-11-28 02:18:48,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:48,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693232590] [2024-11-28 02:18:48,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:48,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:48,547 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 02:18:48,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:48,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693232590] [2024-11-28 02:18:48,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693232590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:48,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:48,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 02:18:48,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251821071] [2024-11-28 02:18:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:48,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:18:48,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:48,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:18:48,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:18:48,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-28 02:18:48,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 118 transitions, 490 flow. Second operand has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 0 states have call successors, (0), 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 02:18:48,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:48,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-28 02:18:48,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:49,457 INFO L124 PetriNetUnfolderBase]: 1221/3434 cut-off events. [2024-11-28 02:18:49,457 INFO L125 PetriNetUnfolderBase]: For 7582/7582 co-relation queries the response was YES. [2024-11-28 02:18:49,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8665 conditions, 3434 events. 1221/3434 cut-off events. For 7582/7582 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 24864 event pairs, 0 based on Foata normal form. 64/3498 useless extension candidates. Maximal degree in co-relation 8638. Up to 1285 conditions per place. [2024-11-28 02:18:49,486 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 77 selfloop transitions, 19 changer transitions 0/143 dead transitions. [2024-11-28 02:18:49,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 143 transitions, 808 flow [2024-11-28 02:18:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:18:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 02:18:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1693 transitions. [2024-11-28 02:18:49,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7010351966873706 [2024-11-28 02:18:49,488 INFO L175 Difference]: Start difference. First operand has 152 places, 118 transitions, 490 flow. Second operand 21 states and 1693 transitions. [2024-11-28 02:18:49,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 143 transitions, 808 flow [2024-11-28 02:18:49,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 143 transitions, 722 flow, removed 23 selfloop flow, removed 20 redundant places. [2024-11-28 02:18:49,500 INFO L231 Difference]: Finished difference. Result has 126 places, 80 transitions, 316 flow [2024-11-28 02:18:49,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=316, PETRI_PLACES=126, PETRI_TRANSITIONS=80} [2024-11-28 02:18:49,501 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-11-28 02:18:49,501 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 80 transitions, 316 flow [2024-11-28 02:18:49,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 0 states have call successors, (0), 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 02:18:49,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:49,502 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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 02:18:49,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-28 02:18:49,502 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 02:18:49,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:49,503 INFO L85 PathProgramCache]: Analyzing trace with hash -515251773, now seen corresponding path program 1 times [2024-11-28 02:18:49,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:49,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404694884] [2024-11-28 02:18:49,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:49,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:18:49,542 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:18:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:18:49,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:18:49,576 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:18:49,576 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-28 02:18:49,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-28 02:18:49,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-28 02:18:49,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-28 02:18:49,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-28 02:18:49,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-28 02:18:49,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-28 02:18:49,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-28 02:18:49,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-28 02:18:49,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-28 02:18:49,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-28 02:18:49,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-28 02:18:49,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-28 02:18:49,578 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:49,579 WARN L246 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:18:49,579 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-28 02:18:49,608 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-11-28 02:18:49,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 123 transitions, 337 flow [2024-11-28 02:18:50,222 INFO L124 PetriNetUnfolderBase]: 480/3428 cut-off events. [2024-11-28 02:18:50,223 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-28 02:18:50,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 3428 events. 480/3428 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 25447 event pairs, 201 based on Foata normal form. 0/2988 useless extension candidates. Maximal degree in co-relation 2010. Up to 448 conditions per place. [2024-11-28 02:18:50,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 123 transitions, 337 flow [2024-11-28 02:18:50,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 123 transitions, 337 flow [2024-11-28 02:18:50,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:18:50,245 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:18:50,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 02:18:50,247 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:18:50,248 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-28 02:18:50,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:18:50,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:50,248 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:50,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:18:50,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash -482900055, now seen corresponding path program 1 times [2024-11-28 02:18:50,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:50,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500896441] [2024-11-28 02:18:50,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:50,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:50,262 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 02:18:50,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:50,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500896441] [2024-11-28 02:18:50,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500896441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:50,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:50,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:18:50,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035043327] [2024-11-28 02:18:50,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:50,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:18:50,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:50,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:18:50,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:18:50,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 123 [2024-11-28 02:18:50,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 123 transitions, 337 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 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 02:18:50,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:50,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 123 [2024-11-28 02:18:50,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:18:55,341 INFO L124 PetriNetUnfolderBase]: 8348/35176 cut-off events. [2024-11-28 02:18:55,341 INFO L125 PetriNetUnfolderBase]: For 19449/38863 co-relation queries the response was YES. [2024-11-28 02:18:55,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51839 conditions, 35176 events. 8348/35176 cut-off events. For 19449/38863 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 457245 event pairs, 7375 based on Foata normal form. 2613/33164 useless extension candidates. Maximal degree in co-relation 32111. Up to 10656 conditions per place. [2024-11-28 02:18:55,552 INFO L140 encePairwiseOnDemand]: 111/123 looper letters, 22 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2024-11-28 02:18:55,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 109 transitions, 353 flow [2024-11-28 02:18:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:18:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:18:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 210 transitions. [2024-11-28 02:18:55,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8536585365853658 [2024-11-28 02:18:55,553 INFO L175 Difference]: Start difference. First operand has 127 places, 123 transitions, 337 flow. Second operand 2 states and 210 transitions. [2024-11-28 02:18:55,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 109 transitions, 353 flow [2024-11-28 02:18:55,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:18:55,567 INFO L231 Difference]: Finished difference. Result has 118 places, 109 transitions, 309 flow [2024-11-28 02:18:55,567 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=309, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2024-11-28 02:18:55,567 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -9 predicate places. [2024-11-28 02:18:55,567 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 309 flow [2024-11-28 02:18:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 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 02:18:55,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:18:55,568 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:55,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-28 02:18:55,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:18:55,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:55,568 INFO L85 PathProgramCache]: Analyzing trace with hash 893440480, now seen corresponding path program 1 times [2024-11-28 02:18:55,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:18:55,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246136955] [2024-11-28 02:18:55,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:55,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:18:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:55,586 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 02:18:55,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:18:55,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246136955] [2024-11-28 02:18:55,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246136955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:55,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:18:55,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:18:55,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413169454] [2024-11-28 02:18:55,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:55,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:18:55,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:18:55,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:18:55,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:18:55,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 123 [2024-11-28 02:18:55,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 02:18:55,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:18:55,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 123 [2024-11-28 02:18:55,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand