./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd --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 a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:25:03,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:25:04,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:25:04,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:25:04,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:25:04,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:25:04,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:25:04,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:25:04,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:25:04,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:25:04,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:25:04,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:25:04,106 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:25:04,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:25:04,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:25:04,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:25:04,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:25:04,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:25:04,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:25:04,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:25:04,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:25:04,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:25:04,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:25:04,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:25:04,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:25:04,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:25:04,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:25:04,110 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_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd 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 -> a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 [2024-11-13 15:25:04,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:25:04,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:25:04,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:25:04,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:25:04,431 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:25:04,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i Unable to find full path for "g++" [2024-11-13 15:25:06,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:25:06,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:25:06,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2024-11-13 15:25:06,630 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/data/ec1e9fbf3/ce62da557513466f80f1d0d24b7784a8/FLAG7d94c33f5 [2024-11-13 15:25:06,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/data/ec1e9fbf3/ce62da557513466f80f1d0d24b7784a8 [2024-11-13 15:25:06,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:25:06,647 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:25:06,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:25:06,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:25:06,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:25:06,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:25:06" (1/1) ... [2024-11-13 15:25:06,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d51b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:06, skipping insertion in model container [2024-11-13 15:25:06,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:25:06" (1/1) ... [2024-11-13 15:25:06,703 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:25:07,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:25:07,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:25:07,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:25:07,121 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:25:07,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07 WrapperNode [2024-11-13 15:25:07,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:25:07,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:25:07,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:25:07,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:25:07,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,159 INFO L138 Inliner]: procedures = 186, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2024-11-13 15:25:07,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:25:07,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:25:07,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:25:07,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:25:07,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:25:07,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:25:07,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:25:07,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:25:07,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:25:07,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:07,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:25:07,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:25:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:25:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:25:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:25:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:25:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:25:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:25:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:25:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:25:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:25:07,253 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:25:07,376 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:25:07,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:25:07,642 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:25:07,642 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:25:07,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:25:07,666 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:25:07,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:25:07 BoogieIcfgContainer [2024-11-13 15:25:07,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:25:07,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:25:07,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:25:07,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:25:07,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:25:06" (1/3) ... [2024-11-13 15:25:07,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d109cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:25:07, skipping insertion in model container [2024-11-13 15:25:07,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (2/3) ... [2024-11-13 15:25:07,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d109cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:25:07, skipping insertion in model container [2024-11-13 15:25:07,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:25:07" (3/3) ... [2024-11-13 15:25:07,676 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2024-11-13 15:25:07,690 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:25:07,692 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_15-list_entry_nr.i that has 2 procedures, 112 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2024-11-13 15:25:07,692 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:25:07,760 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:25:07,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 111 transitions, 226 flow [2024-11-13 15:25:07,858 INFO L124 PetriNetUnfolderBase]: 0/110 cut-off events. [2024-11-13 15:25:07,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:25:07,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 15:25:07,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 111 transitions, 226 flow [2024-11-13 15:25:07,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 110 transitions, 223 flow [2024-11-13 15:25:07,876 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:25:07,887 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;@2ccbb7a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:25:07,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-13 15:25:07,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:25:07,892 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-13 15:25:07,892 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:25:07,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:07,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:07,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:07,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:07,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1145957465, now seen corresponding path program 1 times [2024-11-13 15:25:07,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:07,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388093708] [2024-11-13 15:25:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:08,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388093708] [2024-11-13 15:25:08,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388093708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:08,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:08,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:25:08,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233144788] [2024-11-13 15:25:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:08,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:25:08,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:08,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:25:08,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:25:08,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-13 15:25:08,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:08,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:08,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-13 15:25:08,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:08,307 INFO L124 PetriNetUnfolderBase]: 12/257 cut-off events. [2024-11-13 15:25:08,307 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:25:08,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 257 events. 12/257 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 709 event pairs, 12 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 252. Up to 37 conditions per place. [2024-11-13 15:25:08,312 INFO L140 encePairwiseOnDemand]: 108/111 looper letters, 12 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-11-13 15:25:08,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 249 flow [2024-11-13 15:25:08,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:25:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:25:08,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-11-13 15:25:08,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2024-11-13 15:25:08,327 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 223 flow. Second operand 3 states and 303 transitions. [2024-11-13 15:25:08,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 249 flow [2024-11-13 15:25:08,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:25:08,342 INFO L231 Difference]: Finished difference. Result has 114 places, 109 transitions, 224 flow [2024-11-13 15:25:08,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2024-11-13 15:25:08,351 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2024-11-13 15:25:08,351 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 224 flow [2024-11-13 15:25:08,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:08,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:08,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:08,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:25:08,352 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:08,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:08,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1477363984, now seen corresponding path program 1 times [2024-11-13 15:25:08,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548185331] [2024-11-13 15:25:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:08,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:08,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548185331] [2024-11-13 15:25:08,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548185331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:08,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:08,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:25:08,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287574649] [2024-11-13 15:25:08,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:08,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:25:08,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:08,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:25:08,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:25:08,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-13 15:25:08,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:08,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:08,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-13 15:25:08,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:08,516 INFO L124 PetriNetUnfolderBase]: 16/291 cut-off events. [2024-11-13 15:25:08,516 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:25:08,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 291 events. 16/291 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1012 event pairs, 16 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 323. Up to 43 conditions per place. [2024-11-13 15:25:08,518 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 11 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2024-11-13 15:25:08,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 106 transitions, 242 flow [2024-11-13 15:25:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:25:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:25:08,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-11-13 15:25:08,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2024-11-13 15:25:08,521 INFO L175 Difference]: Start difference. First operand has 114 places, 109 transitions, 224 flow. Second operand 3 states and 303 transitions. [2024-11-13 15:25:08,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 106 transitions, 242 flow [2024-11-13 15:25:08,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:25:08,524 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 216 flow [2024-11-13 15:25:08,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2024-11-13 15:25:08,528 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, -3 predicate places. [2024-11-13 15:25:08,528 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 216 flow [2024-11-13 15:25:08,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:08,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:08,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:08,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:25:08,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:08,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash 227862726, now seen corresponding path program 1 times [2024-11-13 15:25:08,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:08,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118240541] [2024-11-13 15:25:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:08,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:09,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118240541] [2024-11-13 15:25:09,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118240541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:09,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:09,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:25:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649604290] [2024-11-13 15:25:09,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:09,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:25:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:25:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:25:09,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 111 [2024-11-13 15:25:09,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:09,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:09,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 111 [2024-11-13 15:25:09,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:09,582 INFO L124 PetriNetUnfolderBase]: 100/544 cut-off events. [2024-11-13 15:25:09,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:25:09,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 544 events. 100/544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2874 event pairs, 100 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 763. Up to 227 conditions per place. [2024-11-13 15:25:09,587 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 26 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2024-11-13 15:25:09,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 105 transitions, 276 flow [2024-11-13 15:25:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:25:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:25:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2024-11-13 15:25:09,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7597597597597597 [2024-11-13 15:25:09,590 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 216 flow. Second operand 6 states and 506 transitions. [2024-11-13 15:25:09,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 105 transitions, 276 flow [2024-11-13 15:25:09,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 105 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:25:09,593 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 223 flow [2024-11-13 15:25:09,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2024-11-13 15:25:09,594 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2024-11-13 15:25:09,594 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 223 flow [2024-11-13 15:25:09,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:09,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:09,595 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:09,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:25:09,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:09,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash 452530334, now seen corresponding path program 1 times [2024-11-13 15:25:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324502610] [2024-11-13 15:25:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:09,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:10,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:10,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324502610] [2024-11-13 15:25:10,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324502610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:10,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:10,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:25:10,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517221547] [2024-11-13 15:25:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:10,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:25:10,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:10,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:25:10,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:25:10,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2024-11-13 15:25:10,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:10,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:10,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2024-11-13 15:25:10,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:10,563 INFO L124 PetriNetUnfolderBase]: 114/573 cut-off events. [2024-11-13 15:25:10,563 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:25:10,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 573 events. 114/573 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3160 event pairs, 61 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 826. Up to 211 conditions per place. [2024-11-13 15:25:10,567 INFO L140 encePairwiseOnDemand]: 100/111 looper letters, 34 selfloop transitions, 22 changer transitions 0/134 dead transitions. [2024-11-13 15:25:10,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 134 transitions, 393 flow [2024-11-13 15:25:10,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:25:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:25:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2024-11-13 15:25:10,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423423423423423 [2024-11-13 15:25:10,570 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 223 flow. Second operand 6 states and 561 transitions. [2024-11-13 15:25:10,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 134 transitions, 393 flow [2024-11-13 15:25:10,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 134 transitions, 383 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:25:10,575 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 363 flow [2024-11-13 15:25:10,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2024-11-13 15:25:10,576 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-11-13 15:25:10,576 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 363 flow [2024-11-13 15:25:10,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:10,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:10,576 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:10,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:25:10,577 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:10,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1521815766, now seen corresponding path program 1 times [2024-11-13 15:25:10,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:10,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093745020] [2024-11-13 15:25:10,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:10,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:11,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:11,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093745020] [2024-11-13 15:25:11,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093745020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:11,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:11,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:25:11,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320484835] [2024-11-13 15:25:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:11,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:25:11,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:11,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:25:11,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:25:11,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2024-11-13 15:25:11,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:11,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:11,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2024-11-13 15:25:11,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:11,478 INFO L124 PetriNetUnfolderBase]: 152/680 cut-off events. [2024-11-13 15:25:11,479 INFO L125 PetriNetUnfolderBase]: For 133/153 co-relation queries the response was YES. [2024-11-13 15:25:11,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 680 events. 152/680 cut-off events. For 133/153 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4006 event pairs, 61 based on Foata normal form. 5/655 useless extension candidates. Maximal degree in co-relation 1181. Up to 268 conditions per place. [2024-11-13 15:25:11,485 INFO L140 encePairwiseOnDemand]: 100/111 looper letters, 47 selfloop transitions, 26 changer transitions 0/155 dead transitions. [2024-11-13 15:25:11,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 155 transitions, 585 flow [2024-11-13 15:25:11,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:25:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:25:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2024-11-13 15:25:11,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423423423423423 [2024-11-13 15:25:11,490 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 363 flow. Second operand 6 states and 561 transitions. [2024-11-13 15:25:11,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 155 transitions, 585 flow [2024-11-13 15:25:11,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 155 transitions, 585 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:25:11,497 INFO L231 Difference]: Finished difference. Result has 129 places, 147 transitions, 547 flow [2024-11-13 15:25:11,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=547, PETRI_PLACES=129, PETRI_TRANSITIONS=147} [2024-11-13 15:25:11,500 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 15 predicate places. [2024-11-13 15:25:11,502 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 147 transitions, 547 flow [2024-11-13 15:25:11,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:11,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:11,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:11,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:25:11,503 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:11,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1875655331, now seen corresponding path program 1 times [2024-11-13 15:25:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:11,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794024965] [2024-11-13 15:25:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:12,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:12,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794024965] [2024-11-13 15:25:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794024965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:12,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:12,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:25:12,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383770661] [2024-11-13 15:25:12,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:12,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:25:12,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:12,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:25:12,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:25:12,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 111 [2024-11-13 15:25:12,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 147 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:12,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:12,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 111 [2024-11-13 15:25:12,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:12,476 INFO L124 PetriNetUnfolderBase]: 292/1078 cut-off events. [2024-11-13 15:25:12,476 INFO L125 PetriNetUnfolderBase]: For 577/599 co-relation queries the response was YES. [2024-11-13 15:25:12,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 1078 events. 292/1078 cut-off events. For 577/599 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6912 event pairs, 101 based on Foata normal form. 9/1039 useless extension candidates. Maximal degree in co-relation 2418. Up to 532 conditions per place. [2024-11-13 15:25:12,484 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 72 selfloop transitions, 53 changer transitions 4/202 dead transitions. [2024-11-13 15:25:12,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 202 transitions, 1049 flow [2024-11-13 15:25:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:25:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:25:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2024-11-13 15:25:12,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8213213213213213 [2024-11-13 15:25:12,490 INFO L175 Difference]: Start difference. First operand has 129 places, 147 transitions, 547 flow. Second operand 6 states and 547 transitions. [2024-11-13 15:25:12,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 202 transitions, 1049 flow [2024-11-13 15:25:12,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 202 transitions, 1049 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:25:12,503 INFO L231 Difference]: Finished difference. Result has 139 places, 194 transitions, 1029 flow [2024-11-13 15:25:12,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1029, PETRI_PLACES=139, PETRI_TRANSITIONS=194} [2024-11-13 15:25:12,504 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 25 predicate places. [2024-11-13 15:25:12,505 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 194 transitions, 1029 flow [2024-11-13 15:25:12,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:12,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:12,506 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:12,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:25:12,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:12,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash 134748965, now seen corresponding path program 1 times [2024-11-13 15:25:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334051834] [2024-11-13 15:25:12,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:12,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:12,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:12,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334051834] [2024-11-13 15:25:12,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334051834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:12,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:12,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:25:12,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812778491] [2024-11-13 15:25:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:12,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:25:12,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:12,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:25:12,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:25:13,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 111 [2024-11-13 15:25:13,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 194 transitions, 1029 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:13,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:13,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 111 [2024-11-13 15:25:13,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:13,413 INFO L124 PetriNetUnfolderBase]: 396/1383 cut-off events. [2024-11-13 15:25:13,413 INFO L125 PetriNetUnfolderBase]: For 1620/1661 co-relation queries the response was YES. [2024-11-13 15:25:13,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3760 conditions, 1383 events. 396/1383 cut-off events. For 1620/1661 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9387 event pairs, 107 based on Foata normal form. 4/1351 useless extension candidates. Maximal degree in co-relation 3728. Up to 677 conditions per place. [2024-11-13 15:25:13,424 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 109 selfloop transitions, 61 changer transitions 10/255 dead transitions. [2024-11-13 15:25:13,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 255 transitions, 1735 flow [2024-11-13 15:25:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:25:13,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:25:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2024-11-13 15:25:13,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8213213213213213 [2024-11-13 15:25:13,426 INFO L175 Difference]: Start difference. First operand has 139 places, 194 transitions, 1029 flow. Second operand 6 states and 547 transitions. [2024-11-13 15:25:13,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 255 transitions, 1735 flow [2024-11-13 15:25:13,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 255 transitions, 1671 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-13 15:25:13,445 INFO L231 Difference]: Finished difference. Result has 149 places, 241 transitions, 1551 flow [2024-11-13 15:25:13,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1551, PETRI_PLACES=149, PETRI_TRANSITIONS=241} [2024-11-13 15:25:13,447 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 35 predicate places. [2024-11-13 15:25:13,447 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 241 transitions, 1551 flow [2024-11-13 15:25:13,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:13,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:13,447 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:13,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:25:13,448 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:13,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:13,448 INFO L85 PathProgramCache]: Analyzing trace with hash -895514428, now seen corresponding path program 1 times [2024-11-13 15:25:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:13,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280128011] [2024-11-13 15:25:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:13,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:14,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:14,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280128011] [2024-11-13 15:25:14,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280128011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:14,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:14,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:14,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878014359] [2024-11-13 15:25:14,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:14,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:14,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:14,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:14,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:15,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:15,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 241 transitions, 1551 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:15,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:15,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:15,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:16,906 INFO L124 PetriNetUnfolderBase]: 620/2296 cut-off events. [2024-11-13 15:25:16,907 INFO L125 PetriNetUnfolderBase]: For 2949/3000 co-relation queries the response was YES. [2024-11-13 15:25:16,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6499 conditions, 2296 events. 620/2296 cut-off events. For 2949/3000 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 18424 event pairs, 36 based on Foata normal form. 6/2288 useless extension candidates. Maximal degree in co-relation 6457. Up to 368 conditions per place. [2024-11-13 15:25:16,928 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 40 selfloop transitions, 18 changer transitions 18/288 dead transitions. [2024-11-13 15:25:16,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 288 transitions, 1797 flow [2024-11-13 15:25:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1143 transitions. [2024-11-13 15:25:16,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7920997920997921 [2024-11-13 15:25:16,934 INFO L175 Difference]: Start difference. First operand has 149 places, 241 transitions, 1551 flow. Second operand 13 states and 1143 transitions. [2024-11-13 15:25:16,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 288 transitions, 1797 flow [2024-11-13 15:25:16,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 288 transitions, 1729 flow, removed 34 selfloop flow, removed 0 redundant places. [2024-11-13 15:25:16,984 INFO L231 Difference]: Finished difference. Result has 168 places, 250 transitions, 1582 flow [2024-11-13 15:25:16,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1582, PETRI_PLACES=168, PETRI_TRANSITIONS=250} [2024-11-13 15:25:16,985 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 54 predicate places. [2024-11-13 15:25:16,986 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 250 transitions, 1582 flow [2024-11-13 15:25:16,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:16,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:16,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:16,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:25:16,989 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:16,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:16,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2121954808, now seen corresponding path program 2 times [2024-11-13 15:25:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:16,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651946429] [2024-11-13 15:25:16,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:16,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:18,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:18,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651946429] [2024-11-13 15:25:18,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651946429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:18,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:18,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:18,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083872088] [2024-11-13 15:25:18,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:18,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:18,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:19,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:19,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 250 transitions, 1582 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:19,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:19,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:19,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:20,074 INFO L124 PetriNetUnfolderBase]: 620/2370 cut-off events. [2024-11-13 15:25:20,074 INFO L125 PetriNetUnfolderBase]: For 3341/3420 co-relation queries the response was YES. [2024-11-13 15:25:20,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7125 conditions, 2370 events. 620/2370 cut-off events. For 3341/3420 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 19157 event pairs, 37 based on Foata normal form. 13/2374 useless extension candidates. Maximal degree in co-relation 7072. Up to 366 conditions per place. [2024-11-13 15:25:20,098 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 34 selfloop transitions, 23 changer transitions 24/293 dead transitions. [2024-11-13 15:25:20,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 293 transitions, 1914 flow [2024-11-13 15:25:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2024-11-13 15:25:20,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2024-11-13 15:25:20,102 INFO L175 Difference]: Start difference. First operand has 168 places, 250 transitions, 1582 flow. Second operand 13 states and 1139 transitions. [2024-11-13 15:25:20,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 293 transitions, 1914 flow [2024-11-13 15:25:20,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 293 transitions, 1889 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:25:20,142 INFO L231 Difference]: Finished difference. Result has 177 places, 250 transitions, 1625 flow [2024-11-13 15:25:20,142 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1625, PETRI_PLACES=177, PETRI_TRANSITIONS=250} [2024-11-13 15:25:20,144 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 63 predicate places. [2024-11-13 15:25:20,144 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 250 transitions, 1625 flow [2024-11-13 15:25:20,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:20,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:20,145 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:20,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:25:20,146 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:20,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1450919672, now seen corresponding path program 3 times [2024-11-13 15:25:20,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:20,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277567464] [2024-11-13 15:25:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:20,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:20,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:20,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277567464] [2024-11-13 15:25:20,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277567464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:20,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:20,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:20,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111526897] [2024-11-13 15:25:20,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:20,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:20,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:20,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:20,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:21,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:21,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 250 transitions, 1625 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:21,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:21,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:21,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:22,558 INFO L124 PetriNetUnfolderBase]: 563/2153 cut-off events. [2024-11-13 15:25:22,558 INFO L125 PetriNetUnfolderBase]: For 3517/3608 co-relation queries the response was YES. [2024-11-13 15:25:22,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6757 conditions, 2153 events. 563/2153 cut-off events. For 3517/3608 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 17008 event pairs, 21 based on Foata normal form. 12/2159 useless extension candidates. Maximal degree in co-relation 6700. Up to 368 conditions per place. [2024-11-13 15:25:22,576 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 42 selfloop transitions, 19 changer transitions 16/289 dead transitions. [2024-11-13 15:25:22,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 289 transitions, 2009 flow [2024-11-13 15:25:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1137 transitions. [2024-11-13 15:25:22,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7879417879417879 [2024-11-13 15:25:22,580 INFO L175 Difference]: Start difference. First operand has 177 places, 250 transitions, 1625 flow. Second operand 13 states and 1137 transitions. [2024-11-13 15:25:22,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 289 transitions, 2009 flow [2024-11-13 15:25:22,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 289 transitions, 1909 flow, removed 9 selfloop flow, removed 11 redundant places. [2024-11-13 15:25:22,612 INFO L231 Difference]: Finished difference. Result has 182 places, 255 transitions, 1673 flow [2024-11-13 15:25:22,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1579, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1673, PETRI_PLACES=182, PETRI_TRANSITIONS=255} [2024-11-13 15:25:22,614 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 68 predicate places. [2024-11-13 15:25:22,614 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 255 transitions, 1673 flow [2024-11-13 15:25:22,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:22,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:22,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:22,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:25:22,616 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:22,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:22,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1466922172, now seen corresponding path program 4 times [2024-11-13 15:25:22,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:22,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015947074] [2024-11-13 15:25:22,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:22,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:23,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:23,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:23,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015947074] [2024-11-13 15:25:23,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015947074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:23,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:23,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:23,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529963959] [2024-11-13 15:25:23,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:23,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:23,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:23,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:24,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:24,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 255 transitions, 1673 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:24,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:24,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:24,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:25,147 INFO L124 PetriNetUnfolderBase]: 811/2988 cut-off events. [2024-11-13 15:25:25,147 INFO L125 PetriNetUnfolderBase]: For 5462/5574 co-relation queries the response was YES. [2024-11-13 15:25:25,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9519 conditions, 2988 events. 811/2988 cut-off events. For 5462/5574 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 25834 event pairs, 38 based on Foata normal form. 18/2995 useless extension candidates. Maximal degree in co-relation 9458. Up to 513 conditions per place. [2024-11-13 15:25:25,182 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 51 selfloop transitions, 23 changer transitions 4/290 dead transitions. [2024-11-13 15:25:25,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 290 transitions, 2067 flow [2024-11-13 15:25:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1126 transitions. [2024-11-13 15:25:25,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7803187803187803 [2024-11-13 15:25:25,187 INFO L175 Difference]: Start difference. First operand has 182 places, 255 transitions, 1673 flow. Second operand 13 states and 1126 transitions. [2024-11-13 15:25:25,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 290 transitions, 2067 flow [2024-11-13 15:25:25,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 290 transitions, 1979 flow, removed 35 selfloop flow, removed 9 redundant places. [2024-11-13 15:25:25,237 INFO L231 Difference]: Finished difference. Result has 188 places, 261 transitions, 1754 flow [2024-11-13 15:25:25,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1633, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1754, PETRI_PLACES=188, PETRI_TRANSITIONS=261} [2024-11-13 15:25:25,239 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 74 predicate places. [2024-11-13 15:25:25,240 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 261 transitions, 1754 flow [2024-11-13 15:25:25,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:25,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:25,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:25,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:25:25,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:25,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1614284322, now seen corresponding path program 5 times [2024-11-13 15:25:25,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:25,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967353783] [2024-11-13 15:25:25,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:25,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:25,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:25,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967353783] [2024-11-13 15:25:25,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967353783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:25,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:25,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:25,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672078191] [2024-11-13 15:25:25,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:25,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:25,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:25,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:25,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:26,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:26,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 261 transitions, 1754 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:26,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:26,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:26,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:27,975 INFO L124 PetriNetUnfolderBase]: 1071/3796 cut-off events. [2024-11-13 15:25:27,975 INFO L125 PetriNetUnfolderBase]: For 7086/7232 co-relation queries the response was YES. [2024-11-13 15:25:27,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12231 conditions, 3796 events. 1071/3796 cut-off events. For 7086/7232 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 34631 event pairs, 46 based on Foata normal form. 22/3804 useless extension candidates. Maximal degree in co-relation 12169. Up to 696 conditions per place. [2024-11-13 15:25:28,010 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 50 selfloop transitions, 24 changer transitions 3/289 dead transitions. [2024-11-13 15:25:28,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 289 transitions, 2092 flow [2024-11-13 15:25:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:28,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1132 transitions. [2024-11-13 15:25:28,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2024-11-13 15:25:28,015 INFO L175 Difference]: Start difference. First operand has 188 places, 261 transitions, 1754 flow. Second operand 13 states and 1132 transitions. [2024-11-13 15:25:28,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 289 transitions, 2092 flow [2024-11-13 15:25:28,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 289 transitions, 2035 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-13 15:25:28,072 INFO L231 Difference]: Finished difference. Result has 193 places, 267 transitions, 1835 flow [2024-11-13 15:25:28,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1715, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1835, PETRI_PLACES=193, PETRI_TRANSITIONS=267} [2024-11-13 15:25:28,075 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 79 predicate places. [2024-11-13 15:25:28,077 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 267 transitions, 1835 flow [2024-11-13 15:25:28,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:28,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:28,078 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:28,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:25:28,078 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:28,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:28,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2046644978, now seen corresponding path program 6 times [2024-11-13 15:25:28,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:28,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341911553] [2024-11-13 15:25:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:28,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:28,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341911553] [2024-11-13 15:25:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341911553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:28,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:28,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:28,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884189928] [2024-11-13 15:25:28,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:28,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:28,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:28,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:28,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:29,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:29,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 267 transitions, 1835 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:29,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:29,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:29,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:31,196 INFO L124 PetriNetUnfolderBase]: 1338/4720 cut-off events. [2024-11-13 15:25:31,197 INFO L125 PetriNetUnfolderBase]: For 9773/9961 co-relation queries the response was YES. [2024-11-13 15:25:31,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15482 conditions, 4720 events. 1338/4720 cut-off events. For 9773/9961 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 45180 event pairs, 66 based on Foata normal form. 22/4723 useless extension candidates. Maximal degree in co-relation 15418. Up to 864 conditions per place. [2024-11-13 15:25:31,248 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 57 selfloop transitions, 27 changer transitions 4/300 dead transitions. [2024-11-13 15:25:31,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 300 transitions, 2260 flow [2024-11-13 15:25:31,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:31,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1132 transitions. [2024-11-13 15:25:31,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2024-11-13 15:25:31,254 INFO L175 Difference]: Start difference. First operand has 193 places, 267 transitions, 1835 flow. Second operand 13 states and 1132 transitions. [2024-11-13 15:25:31,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 300 transitions, 2260 flow [2024-11-13 15:25:31,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 300 transitions, 2195 flow, removed 6 selfloop flow, removed 9 redundant places. [2024-11-13 15:25:31,334 INFO L231 Difference]: Finished difference. Result has 201 places, 274 transitions, 1957 flow [2024-11-13 15:25:31,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1791, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1957, PETRI_PLACES=201, PETRI_TRANSITIONS=274} [2024-11-13 15:25:31,335 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 87 predicate places. [2024-11-13 15:25:31,335 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 274 transitions, 1957 flow [2024-11-13 15:25:31,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:31,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:31,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:31,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:25:31,336 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:31,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1085975770, now seen corresponding path program 7 times [2024-11-13 15:25:31,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:31,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582979969] [2024-11-13 15:25:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:31,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:32,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:32,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582979969] [2024-11-13 15:25:32,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582979969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:32,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:32,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:32,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659357521] [2024-11-13 15:25:32,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:32,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:32,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:32,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:32,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:33,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:33,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 274 transitions, 1957 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:33,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:33,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:33,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:34,538 INFO L124 PetriNetUnfolderBase]: 1601/5588 cut-off events. [2024-11-13 15:25:34,538 INFO L125 PetriNetUnfolderBase]: For 12716/12936 co-relation queries the response was YES. [2024-11-13 15:25:34,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18575 conditions, 5588 events. 1601/5588 cut-off events. For 12716/12936 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 55564 event pairs, 73 based on Foata normal form. 30/5596 useless extension candidates. Maximal degree in co-relation 18506. Up to 1026 conditions per place. [2024-11-13 15:25:34,686 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 56 selfloop transitions, 31 changer transitions 5/304 dead transitions. [2024-11-13 15:25:34,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 304 transitions, 2404 flow [2024-11-13 15:25:34,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2024-11-13 15:25:34,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2024-11-13 15:25:34,691 INFO L175 Difference]: Start difference. First operand has 201 places, 274 transitions, 1957 flow. Second operand 13 states and 1131 transitions. [2024-11-13 15:25:34,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 304 transitions, 2404 flow [2024-11-13 15:25:34,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 304 transitions, 2327 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-11-13 15:25:34,788 INFO L231 Difference]: Finished difference. Result has 208 places, 281 transitions, 2082 flow [2024-11-13 15:25:34,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2082, PETRI_PLACES=208, PETRI_TRANSITIONS=281} [2024-11-13 15:25:34,790 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 94 predicate places. [2024-11-13 15:25:34,790 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 281 transitions, 2082 flow [2024-11-13 15:25:34,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:34,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:34,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:34,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:25:34,792 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:34,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1348704374, now seen corresponding path program 8 times [2024-11-13 15:25:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:34,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047169476] [2024-11-13 15:25:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:34,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:35,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047169476] [2024-11-13 15:25:35,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047169476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:35,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:35,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:35,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398580211] [2024-11-13 15:25:35,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:35,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:35,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:35,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:35,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:36,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:36,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 281 transitions, 2082 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:36,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:36,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:36,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:37,466 INFO L124 PetriNetUnfolderBase]: 1600/5606 cut-off events. [2024-11-13 15:25:37,466 INFO L125 PetriNetUnfolderBase]: For 13882/14111 co-relation queries the response was YES. [2024-11-13 15:25:37,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18835 conditions, 5606 events. 1600/5606 cut-off events. For 13882/14111 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 55802 event pairs, 73 based on Foata normal form. 37/5620 useless extension candidates. Maximal degree in co-relation 18763. Up to 1027 conditions per place. [2024-11-13 15:25:37,511 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 56 selfloop transitions, 33 changer transitions 5/306 dead transitions. [2024-11-13 15:25:37,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 306 transitions, 2472 flow [2024-11-13 15:25:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:37,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2024-11-13 15:25:37,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2024-11-13 15:25:37,515 INFO L175 Difference]: Start difference. First operand has 208 places, 281 transitions, 2082 flow. Second operand 13 states and 1135 transitions. [2024-11-13 15:25:37,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 306 transitions, 2472 flow [2024-11-13 15:25:37,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 306 transitions, 2399 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-11-13 15:25:37,791 INFO L231 Difference]: Finished difference. Result has 216 places, 283 transitions, 2144 flow [2024-11-13 15:25:37,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2019, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2144, PETRI_PLACES=216, PETRI_TRANSITIONS=283} [2024-11-13 15:25:37,793 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 102 predicate places. [2024-11-13 15:25:37,793 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 283 transitions, 2144 flow [2024-11-13 15:25:37,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:37,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:37,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:37,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:25:37,794 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:37,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash -529829048, now seen corresponding path program 9 times [2024-11-13 15:25:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:37,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184719310] [2024-11-13 15:25:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:37,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:38,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:38,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184719310] [2024-11-13 15:25:38,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184719310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:38,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:38,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:38,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747998842] [2024-11-13 15:25:38,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:38,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:38,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:38,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:38,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:38,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:38,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 283 transitions, 2144 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:38,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:38,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:38,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:40,069 INFO L124 PetriNetUnfolderBase]: 1599/5601 cut-off events. [2024-11-13 15:25:40,069 INFO L125 PetriNetUnfolderBase]: For 14626/14845 co-relation queries the response was YES. [2024-11-13 15:25:40,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18931 conditions, 5601 events. 1599/5601 cut-off events. For 14626/14845 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 55691 event pairs, 77 based on Foata normal form. 25/5603 useless extension candidates. Maximal degree in co-relation 18855. Up to 1039 conditions per place. [2024-11-13 15:25:40,119 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 59 selfloop transitions, 29 changer transitions 2/302 dead transitions. [2024-11-13 15:25:40,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 302 transitions, 2504 flow [2024-11-13 15:25:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2024-11-13 15:25:40,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7886347886347886 [2024-11-13 15:25:40,123 INFO L175 Difference]: Start difference. First operand has 216 places, 283 transitions, 2144 flow. Second operand 13 states and 1138 transitions. [2024-11-13 15:25:40,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 302 transitions, 2504 flow [2024-11-13 15:25:40,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 302 transitions, 2341 flow, removed 39 selfloop flow, removed 13 redundant places. [2024-11-13 15:25:40,245 INFO L231 Difference]: Finished difference. Result has 218 places, 287 transitions, 2156 flow [2024-11-13 15:25:40,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2025, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2156, PETRI_PLACES=218, PETRI_TRANSITIONS=287} [2024-11-13 15:25:40,246 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 104 predicate places. [2024-11-13 15:25:40,247 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 287 transitions, 2156 flow [2024-11-13 15:25:40,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:40,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:40,247 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:40,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:25:40,248 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:40,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1852955070, now seen corresponding path program 1 times [2024-11-13 15:25:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31254720] [2024-11-13 15:25:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:40,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:41,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:41,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31254720] [2024-11-13 15:25:41,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31254720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:41,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:41,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492635398] [2024-11-13 15:25:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:41,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:41,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:41,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:41,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 287 transitions, 2156 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:41,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:41,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:41,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:42,845 INFO L124 PetriNetUnfolderBase]: 1860/6447 cut-off events. [2024-11-13 15:25:42,845 INFO L125 PetriNetUnfolderBase]: For 16464/16709 co-relation queries the response was YES. [2024-11-13 15:25:42,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21684 conditions, 6447 events. 1860/6447 cut-off events. For 16464/16709 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 66101 event pairs, 85 based on Foata normal form. 24/6444 useless extension candidates. Maximal degree in co-relation 21609. Up to 1204 conditions per place. [2024-11-13 15:25:42,903 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 66 selfloop transitions, 31 changer transitions 3/312 dead transitions. [2024-11-13 15:25:42,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 312 transitions, 2603 flow [2024-11-13 15:25:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2024-11-13 15:25:42,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2024-11-13 15:25:42,906 INFO L175 Difference]: Start difference. First operand has 218 places, 287 transitions, 2156 flow. Second operand 13 states and 1139 transitions. [2024-11-13 15:25:42,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 312 transitions, 2603 flow [2024-11-13 15:25:43,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 312 transitions, 2515 flow, removed 24 selfloop flow, removed 8 redundant places. [2024-11-13 15:25:43,046 INFO L231 Difference]: Finished difference. Result has 225 places, 293 transitions, 2264 flow [2024-11-13 15:25:43,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2097, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2264, PETRI_PLACES=225, PETRI_TRANSITIONS=293} [2024-11-13 15:25:43,047 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 111 predicate places. [2024-11-13 15:25:43,047 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 293 transitions, 2264 flow [2024-11-13 15:25:43,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:43,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:43,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:43,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:25:43,048 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:43,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:43,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1069381706, now seen corresponding path program 2 times [2024-11-13 15:25:43,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:43,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573468376] [2024-11-13 15:25:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:43,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:43,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573468376] [2024-11-13 15:25:43,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573468376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:43,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422544843] [2024-11-13 15:25:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:43,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:43,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:43,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:43,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:44,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:44,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 293 transitions, 2264 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:44,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:44,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:44,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:45,589 INFO L124 PetriNetUnfolderBase]: 1859/6482 cut-off events. [2024-11-13 15:25:45,589 INFO L125 PetriNetUnfolderBase]: For 16839/17086 co-relation queries the response was YES. [2024-11-13 15:25:45,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21848 conditions, 6482 events. 1859/6482 cut-off events. For 16839/17086 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66546 event pairs, 88 based on Foata normal form. 27/6482 useless extension candidates. Maximal degree in co-relation 21770. Up to 1210 conditions per place. [2024-11-13 15:25:45,639 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 63 selfloop transitions, 29 changer transitions 5/309 dead transitions. [2024-11-13 15:25:45,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 309 transitions, 2584 flow [2024-11-13 15:25:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2024-11-13 15:25:45,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2024-11-13 15:25:45,641 INFO L175 Difference]: Start difference. First operand has 225 places, 293 transitions, 2264 flow. Second operand 13 states and 1139 transitions. [2024-11-13 15:25:45,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 309 transitions, 2584 flow [2024-11-13 15:25:45,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 309 transitions, 2527 flow, removed 5 selfloop flow, removed 9 redundant places. [2024-11-13 15:25:45,777 INFO L231 Difference]: Finished difference. Result has 230 places, 293 transitions, 2286 flow [2024-11-13 15:25:45,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2213, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2286, PETRI_PLACES=230, PETRI_TRANSITIONS=293} [2024-11-13 15:25:45,777 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 116 predicate places. [2024-11-13 15:25:45,778 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 293 transitions, 2286 flow [2024-11-13 15:25:45,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:45,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:45,778 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:45,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:25:45,779 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:45,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:45,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1488705598, now seen corresponding path program 3 times [2024-11-13 15:25:45,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:45,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783902558] [2024-11-13 15:25:45,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:45,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:46,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783902558] [2024-11-13 15:25:46,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783902558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:46,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:46,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941702964] [2024-11-13 15:25:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:46,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:46,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:46,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:47,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:47,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 293 transitions, 2286 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:47,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:47,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:47,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:48,075 INFO L124 PetriNetUnfolderBase]: 1597/5639 cut-off events. [2024-11-13 15:25:48,075 INFO L125 PetriNetUnfolderBase]: For 14677/14892 co-relation queries the response was YES. [2024-11-13 15:25:48,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18976 conditions, 5639 events. 1597/5639 cut-off events. For 14677/14892 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 56229 event pairs, 76 based on Foata normal form. 21/5637 useless extension candidates. Maximal degree in co-relation 18896. Up to 1045 conditions per place. [2024-11-13 15:25:48,124 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 61 selfloop transitions, 25 changer transitions 9/307 dead transitions. [2024-11-13 15:25:48,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 307 transitions, 2554 flow [2024-11-13 15:25:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2024-11-13 15:25:48,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2024-11-13 15:25:48,126 INFO L175 Difference]: Start difference. First operand has 230 places, 293 transitions, 2286 flow. Second operand 13 states and 1135 transitions. [2024-11-13 15:25:48,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 307 transitions, 2554 flow [2024-11-13 15:25:48,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 307 transitions, 2475 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-11-13 15:25:48,218 INFO L231 Difference]: Finished difference. Result has 231 places, 287 transitions, 2175 flow [2024-11-13 15:25:48,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2175, PETRI_PLACES=231, PETRI_TRANSITIONS=287} [2024-11-13 15:25:48,218 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 117 predicate places. [2024-11-13 15:25:48,218 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 287 transitions, 2175 flow [2024-11-13 15:25:48,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:48,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:48,219 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:48,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:25:48,219 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:48,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:48,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1659496530, now seen corresponding path program 4 times [2024-11-13 15:25:48,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:48,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104480281] [2024-11-13 15:25:48,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:48,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:48,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104480281] [2024-11-13 15:25:48,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104480281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:48,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:48,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:48,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442670530] [2024-11-13 15:25:48,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:48,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:48,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:48,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:49,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:49,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 287 transitions, 2175 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:49,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:49,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:49,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:50,401 INFO L124 PetriNetUnfolderBase]: 1596/5616 cut-off events. [2024-11-13 15:25:50,402 INFO L125 PetriNetUnfolderBase]: For 14277/14481 co-relation queries the response was YES. [2024-11-13 15:25:50,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18818 conditions, 5616 events. 1596/5616 cut-off events. For 14277/14481 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 55979 event pairs, 77 based on Foata normal form. 21/5614 useless extension candidates. Maximal degree in co-relation 18737. Up to 1040 conditions per place. [2024-11-13 15:25:50,445 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 56 selfloop transitions, 29 changer transitions 5/302 dead transitions. [2024-11-13 15:25:50,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 302 transitions, 2491 flow [2024-11-13 15:25:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:50,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2024-11-13 15:25:50,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7886347886347886 [2024-11-13 15:25:50,447 INFO L175 Difference]: Start difference. First operand has 231 places, 287 transitions, 2175 flow. Second operand 13 states and 1138 transitions. [2024-11-13 15:25:50,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 302 transitions, 2491 flow [2024-11-13 15:25:50,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 302 transitions, 2404 flow, removed 14 selfloop flow, removed 15 redundant places. [2024-11-13 15:25:50,566 INFO L231 Difference]: Finished difference. Result has 225 places, 287 transitions, 2174 flow [2024-11-13 15:25:50,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2109, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2174, PETRI_PLACES=225, PETRI_TRANSITIONS=287} [2024-11-13 15:25:50,567 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 111 predicate places. [2024-11-13 15:25:50,567 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 287 transitions, 2174 flow [2024-11-13 15:25:50,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:50,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:50,567 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:50,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:25:50,568 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:50,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1891756424, now seen corresponding path program 5 times [2024-11-13 15:25:50,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:50,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595468222] [2024-11-13 15:25:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:50,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:50,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595468222] [2024-11-13 15:25:50,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595468222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:50,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:50,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:50,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473081411] [2024-11-13 15:25:50,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:50,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:50,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:51,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:51,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 287 transitions, 2174 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:51,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:51,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:51,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:52,509 INFO L124 PetriNetUnfolderBase]: 1332/4787 cut-off events. [2024-11-13 15:25:52,510 INFO L125 PetriNetUnfolderBase]: For 11631/11808 co-relation queries the response was YES. [2024-11-13 15:25:52,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15964 conditions, 4787 events. 1332/4787 cut-off events. For 11631/11808 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 46140 event pairs, 67 based on Foata normal form. 20/4788 useless extension candidates. Maximal degree in co-relation 15886. Up to 880 conditions per place. [2024-11-13 15:25:52,543 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 52 selfloop transitions, 21 changer transitions 10/295 dead transitions. [2024-11-13 15:25:52,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 295 transitions, 2360 flow [2024-11-13 15:25:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1134 transitions. [2024-11-13 15:25:52,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2024-11-13 15:25:52,545 INFO L175 Difference]: Start difference. First operand has 225 places, 287 transitions, 2174 flow. Second operand 13 states and 1134 transitions. [2024-11-13 15:25:52,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 295 transitions, 2360 flow [2024-11-13 15:25:52,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 295 transitions, 2258 flow, removed 10 selfloop flow, removed 15 redundant places. [2024-11-13 15:25:52,601 INFO L231 Difference]: Finished difference. Result has 221 places, 277 transitions, 1984 flow [2024-11-13 15:25:52,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2014, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1984, PETRI_PLACES=221, PETRI_TRANSITIONS=277} [2024-11-13 15:25:52,602 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 107 predicate places. [2024-11-13 15:25:52,602 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 277 transitions, 1984 flow [2024-11-13 15:25:52,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:52,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:52,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:52,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:25:52,603 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:52,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:52,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1619751972, now seen corresponding path program 6 times [2024-11-13 15:25:52,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:52,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233086680] [2024-11-13 15:25:52,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:52,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:52,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:52,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233086680] [2024-11-13 15:25:52,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233086680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:52,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:52,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:52,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230896914] [2024-11-13 15:25:52,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:52,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:52,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:52,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:52,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:53,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:53,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 277 transitions, 1984 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:53,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:53,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:53,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:54,585 INFO L124 PetriNetUnfolderBase]: 1069/3882 cut-off events. [2024-11-13 15:25:54,585 INFO L125 PetriNetUnfolderBase]: For 8246/8389 co-relation queries the response was YES. [2024-11-13 15:25:54,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12706 conditions, 3882 events. 1069/3882 cut-off events. For 8246/8389 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 35628 event pairs, 47 based on Foata normal form. 18/3885 useless extension candidates. Maximal degree in co-relation 12656. Up to 704 conditions per place. [2024-11-13 15:25:54,608 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 50 selfloop transitions, 21 changer transitions 9/292 dead transitions. [2024-11-13 15:25:54,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 292 transitions, 2187 flow [2024-11-13 15:25:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1127 transitions. [2024-11-13 15:25:54,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.781011781011781 [2024-11-13 15:25:54,610 INFO L175 Difference]: Start difference. First operand has 221 places, 277 transitions, 1984 flow. Second operand 13 states and 1127 transitions. [2024-11-13 15:25:54,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 292 transitions, 2187 flow [2024-11-13 15:25:54,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 292 transitions, 2108 flow, removed 8 selfloop flow, removed 14 redundant places. [2024-11-13 15:25:54,653 INFO L231 Difference]: Finished difference. Result has 212 places, 271 transitions, 1872 flow [2024-11-13 15:25:54,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1872, PETRI_PLACES=212, PETRI_TRANSITIONS=271} [2024-11-13 15:25:54,654 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 98 predicate places. [2024-11-13 15:25:54,654 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 271 transitions, 1872 flow [2024-11-13 15:25:54,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:54,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:54,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:54,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:25:54,654 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:54,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:54,655 INFO L85 PathProgramCache]: Analyzing trace with hash 791919810, now seen corresponding path program 7 times [2024-11-13 15:25:54,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:54,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379753531] [2024-11-13 15:25:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:54,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:55,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:55,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379753531] [2024-11-13 15:25:55,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379753531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:55,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:55,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:55,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090818957] [2024-11-13 15:25:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:55,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:55,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:55,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:55,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:55,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:55,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 271 transitions, 1872 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:55,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:55,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:55,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:56,609 INFO L124 PetriNetUnfolderBase]: 1069/3880 cut-off events. [2024-11-13 15:25:56,609 INFO L125 PetriNetUnfolderBase]: For 7606/7740 co-relation queries the response was YES. [2024-11-13 15:25:56,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12600 conditions, 3880 events. 1069/3880 cut-off events. For 7606/7740 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 35657 event pairs, 50 based on Foata normal form. 16/3881 useless extension candidates. Maximal degree in co-relation 12551. Up to 688 conditions per place. [2024-11-13 15:25:56,631 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 47 selfloop transitions, 23 changer transitions 5/287 dead transitions. [2024-11-13 15:25:56,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 287 transitions, 2119 flow [2024-11-13 15:25:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2024-11-13 15:25:56,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2024-11-13 15:25:56,632 INFO L175 Difference]: Start difference. First operand has 212 places, 271 transitions, 1872 flow. Second operand 13 states and 1131 transitions. [2024-11-13 15:25:56,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 287 transitions, 2119 flow [2024-11-13 15:25:56,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 287 transitions, 2031 flow, removed 13 selfloop flow, removed 16 redundant places. [2024-11-13 15:25:56,672 INFO L231 Difference]: Finished difference. Result has 206 places, 271 transitions, 1862 flow [2024-11-13 15:25:56,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1803, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1862, PETRI_PLACES=206, PETRI_TRANSITIONS=271} [2024-11-13 15:25:56,673 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 92 predicate places. [2024-11-13 15:25:56,673 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 271 transitions, 1862 flow [2024-11-13 15:25:56,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:56,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:56,673 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:56,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:25:56,674 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:56,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1461900676, now seen corresponding path program 8 times [2024-11-13 15:25:56,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685225054] [2024-11-13 15:25:56,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:56,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:57,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:57,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685225054] [2024-11-13 15:25:57,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685225054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:57,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:57,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:57,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211927939] [2024-11-13 15:25:57,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:57,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:57,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:57,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:57,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:25:57,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:25:57,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 271 transitions, 1862 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:57,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:57,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:25:57,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:58,689 INFO L124 PetriNetUnfolderBase]: 1067/3861 cut-off events. [2024-11-13 15:25:58,689 INFO L125 PetriNetUnfolderBase]: For 7394/7528 co-relation queries the response was YES. [2024-11-13 15:25:58,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12492 conditions, 3861 events. 1067/3861 cut-off events. For 7394/7528 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 35415 event pairs, 50 based on Foata normal form. 16/3862 useless extension candidates. Maximal degree in co-relation 12446. Up to 691 conditions per place. [2024-11-13 15:25:58,710 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 44 selfloop transitions, 26 changer transitions 5/287 dead transitions. [2024-11-13 15:25:58,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 287 transitions, 2113 flow [2024-11-13 15:25:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:25:58,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:25:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1130 transitions. [2024-11-13 15:25:58,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7830907830907831 [2024-11-13 15:25:58,712 INFO L175 Difference]: Start difference. First operand has 206 places, 271 transitions, 1862 flow. Second operand 13 states and 1130 transitions. [2024-11-13 15:25:58,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 287 transitions, 2113 flow [2024-11-13 15:25:58,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 287 transitions, 2044 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-11-13 15:25:58,751 INFO L231 Difference]: Finished difference. Result has 208 places, 273 transitions, 1894 flow [2024-11-13 15:25:58,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1807, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1894, PETRI_PLACES=208, PETRI_TRANSITIONS=273} [2024-11-13 15:25:58,752 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 94 predicate places. [2024-11-13 15:25:58,752 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 273 transitions, 1894 flow [2024-11-13 15:25:58,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:25:58,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:58,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:58,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:25:58,753 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:25:58,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash -92043040, now seen corresponding path program 9 times [2024-11-13 15:25:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327106252] [2024-11-13 15:25:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:58,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:25:59,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:59,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327106252] [2024-11-13 15:25:59,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327106252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:59,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:59,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:25:59,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106080512] [2024-11-13 15:25:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:59,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:25:59,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:59,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:25:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:00,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:00,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 273 transitions, 1894 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:00,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:00,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:00,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:00,689 INFO L124 PetriNetUnfolderBase]: 806/3060 cut-off events. [2024-11-13 15:26:00,689 INFO L125 PetriNetUnfolderBase]: For 5664/5766 co-relation queries the response was YES. [2024-11-13 15:26:00,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9810 conditions, 3060 events. 806/3060 cut-off events. For 5664/5766 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 26733 event pairs, 40 based on Foata normal form. 12/3061 useless extension candidates. Maximal degree in co-relation 9762. Up to 529 conditions per place. [2024-11-13 15:26:00,705 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 39 selfloop transitions, 17 changer transitions 13/281 dead transitions. [2024-11-13 15:26:00,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 281 transitions, 2041 flow [2024-11-13 15:26:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:00,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1126 transitions. [2024-11-13 15:26:00,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7803187803187803 [2024-11-13 15:26:00,707 INFO L175 Difference]: Start difference. First operand has 208 places, 273 transitions, 1894 flow. Second operand 13 states and 1126 transitions. [2024-11-13 15:26:00,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 281 transitions, 2041 flow [2024-11-13 15:26:00,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 281 transitions, 1996 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-11-13 15:26:00,738 INFO L231 Difference]: Finished difference. Result has 209 places, 262 transitions, 1761 flow [2024-11-13 15:26:00,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1761, PETRI_PLACES=209, PETRI_TRANSITIONS=262} [2024-11-13 15:26:00,739 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 95 predicate places. [2024-11-13 15:26:00,739 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 262 transitions, 1761 flow [2024-11-13 15:26:00,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:00,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:00,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:00,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:26:00,740 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:00,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:00,740 INFO L85 PathProgramCache]: Analyzing trace with hash -184809626, now seen corresponding path program 10 times [2024-11-13 15:26:00,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:00,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255330132] [2024-11-13 15:26:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:00,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:01,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:01,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255330132] [2024-11-13 15:26:01,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255330132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:01,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:01,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:01,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602565712] [2024-11-13 15:26:01,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:01,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:01,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:01,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:01,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:01,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:01,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 262 transitions, 1761 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:01,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:01,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:01,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:02,542 INFO L124 PetriNetUnfolderBase]: 1060/3739 cut-off events. [2024-11-13 15:26:02,542 INFO L125 PetriNetUnfolderBase]: For 6949/7086 co-relation queries the response was YES. [2024-11-13 15:26:02,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11965 conditions, 3739 events. 1060/3739 cut-off events. For 6949/7086 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 34160 event pairs, 46 based on Foata normal form. 19/3743 useless extension candidates. Maximal degree in co-relation 11918. Up to 674 conditions per place. [2024-11-13 15:26:02,619 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 43 selfloop transitions, 28 changer transitions 1/284 dead transitions. [2024-11-13 15:26:02,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 284 transitions, 2045 flow [2024-11-13 15:26:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2024-11-13 15:26:02,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2024-11-13 15:26:02,621 INFO L175 Difference]: Start difference. First operand has 209 places, 262 transitions, 1761 flow. Second operand 13 states and 1135 transitions. [2024-11-13 15:26:02,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 284 transitions, 2045 flow [2024-11-13 15:26:02,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 284 transitions, 1943 flow, removed 15 selfloop flow, removed 18 redundant places. [2024-11-13 15:26:02,652 INFO L231 Difference]: Finished difference. Result has 197 places, 269 transitions, 1826 flow [2024-11-13 15:26:02,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1688, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1826, PETRI_PLACES=197, PETRI_TRANSITIONS=269} [2024-11-13 15:26:02,652 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 83 predicate places. [2024-11-13 15:26:02,653 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 269 transitions, 1826 flow [2024-11-13 15:26:02,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:02,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:02,653 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:02,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:26:02,653 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:02,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -755499794, now seen corresponding path program 11 times [2024-11-13 15:26:02,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:02,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497689116] [2024-11-13 15:26:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:02,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:03,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:03,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497689116] [2024-11-13 15:26:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497689116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:03,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:03,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575149020] [2024-11-13 15:26:03,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:03,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:03,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:03,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:03,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:03,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 269 transitions, 1826 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:03,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:03,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:03,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:04,429 INFO L124 PetriNetUnfolderBase]: 1059/3721 cut-off events. [2024-11-13 15:26:04,429 INFO L125 PetriNetUnfolderBase]: For 7210/7355 co-relation queries the response was YES. [2024-11-13 15:26:04,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11966 conditions, 3721 events. 1059/3721 cut-off events. For 7210/7355 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 33905 event pairs, 44 based on Foata normal form. 21/3727 useless extension candidates. Maximal degree in co-relation 11923. Up to 669 conditions per place. [2024-11-13 15:26:04,450 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 50 selfloop transitions, 27 changer transitions 2/291 dead transitions. [2024-11-13 15:26:04,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 291 transitions, 2110 flow [2024-11-13 15:26:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:04,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2024-11-13 15:26:04,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2024-11-13 15:26:04,452 INFO L175 Difference]: Start difference. First operand has 197 places, 269 transitions, 1826 flow. Second operand 13 states and 1123 transitions. [2024-11-13 15:26:04,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 291 transitions, 2110 flow [2024-11-13 15:26:04,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 291 transitions, 2068 flow, removed 1 selfloop flow, removed 8 redundant places. [2024-11-13 15:26:04,490 INFO L231 Difference]: Finished difference. Result has 205 places, 271 transitions, 1879 flow [2024-11-13 15:26:04,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1879, PETRI_PLACES=205, PETRI_TRANSITIONS=271} [2024-11-13 15:26:04,490 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 91 predicate places. [2024-11-13 15:26:04,491 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 271 transitions, 1879 flow [2024-11-13 15:26:04,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:04,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:04,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:04,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 15:26:04,491 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:04,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash 628826324, now seen corresponding path program 12 times [2024-11-13 15:26:04,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787235220] [2024-11-13 15:26:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:04,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:04,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:04,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787235220] [2024-11-13 15:26:04,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787235220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:04,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:04,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:04,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410244337] [2024-11-13 15:26:04,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:04,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:04,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:04,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:04,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:05,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:05,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 271 transitions, 1879 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:05,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:05,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:05,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:06,191 INFO L124 PetriNetUnfolderBase]: 796/2901 cut-off events. [2024-11-13 15:26:06,192 INFO L125 PetriNetUnfolderBase]: For 5689/5805 co-relation queries the response was YES. [2024-11-13 15:26:06,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9309 conditions, 2901 events. 796/2901 cut-off events. For 5689/5805 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 25058 event pairs, 33 based on Foata normal form. 18/2908 useless extension candidates. Maximal degree in co-relation 9262. Up to 510 conditions per place. [2024-11-13 15:26:06,208 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 46 selfloop transitions, 18 changer transitions 8/284 dead transitions. [2024-11-13 15:26:06,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 284 transitions, 2064 flow [2024-11-13 15:26:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:06,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1117 transitions. [2024-11-13 15:26:06,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.774081774081774 [2024-11-13 15:26:06,210 INFO L175 Difference]: Start difference. First operand has 205 places, 271 transitions, 1879 flow. Second operand 13 states and 1117 transitions. [2024-11-13 15:26:06,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 284 transitions, 2064 flow [2024-11-13 15:26:06,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 284 transitions, 2001 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-11-13 15:26:06,241 INFO L231 Difference]: Finished difference. Result has 207 places, 262 transitions, 1768 flow [2024-11-13 15:26:06,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1763, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1768, PETRI_PLACES=207, PETRI_TRANSITIONS=262} [2024-11-13 15:26:06,242 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2024-11-13 15:26:06,242 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 262 transitions, 1768 flow [2024-11-13 15:26:06,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:06,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:06,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:06,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 15:26:06,243 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:06,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:06,243 INFO L85 PathProgramCache]: Analyzing trace with hash 783458368, now seen corresponding path program 13 times [2024-11-13 15:26:06,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:06,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678767555] [2024-11-13 15:26:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:06,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:06,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:06,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678767555] [2024-11-13 15:26:06,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678767555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:06,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:06,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:06,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380758398] [2024-11-13 15:26:06,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:06,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:06,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:06,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:06,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:07,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:07,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 262 transitions, 1768 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:07,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:07,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:07,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:07,806 INFO L124 PetriNetUnfolderBase]: 795/2836 cut-off events. [2024-11-13 15:26:07,806 INFO L125 PetriNetUnfolderBase]: For 5488/5608 co-relation queries the response was YES. [2024-11-13 15:26:07,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9089 conditions, 2836 events. 795/2836 cut-off events. For 5488/5608 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24272 event pairs, 35 based on Foata normal form. 26/2851 useless extension candidates. Maximal degree in co-relation 9042. Up to 511 conditions per place. [2024-11-13 15:26:07,822 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 33 selfloop transitions, 30 changer transitions 2/277 dead transitions. [2024-11-13 15:26:07,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 277 transitions, 1992 flow [2024-11-13 15:26:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2024-11-13 15:26:07,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2024-11-13 15:26:07,824 INFO L175 Difference]: Start difference. First operand has 207 places, 262 transitions, 1768 flow. Second operand 13 states and 1122 transitions. [2024-11-13 15:26:07,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 277 transitions, 1992 flow [2024-11-13 15:26:07,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 277 transitions, 1908 flow, removed 6 selfloop flow, removed 18 redundant places. [2024-11-13 15:26:07,871 INFO L231 Difference]: Finished difference. Result has 195 places, 262 transitions, 1772 flow [2024-11-13 15:26:07,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1702, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1772, PETRI_PLACES=195, PETRI_TRANSITIONS=262} [2024-11-13 15:26:07,872 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 81 predicate places. [2024-11-13 15:26:07,872 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 262 transitions, 1772 flow [2024-11-13 15:26:07,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:07,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:07,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:07,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 15:26:07,873 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:07,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash -472591012, now seen corresponding path program 14 times [2024-11-13 15:26:07,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:07,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198250950] [2024-11-13 15:26:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:08,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:08,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198250950] [2024-11-13 15:26:08,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198250950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:08,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:08,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:08,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201902912] [2024-11-13 15:26:08,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:08,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:08,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:08,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:08,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:08,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 262 transitions, 1772 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:08,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:08,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:08,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:09,479 INFO L124 PetriNetUnfolderBase]: 534/2068 cut-off events. [2024-11-13 15:26:09,480 INFO L125 PetriNetUnfolderBase]: For 3733/3810 co-relation queries the response was YES. [2024-11-13 15:26:09,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6555 conditions, 2068 events. 534/2068 cut-off events. For 3733/3810 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16263 event pairs, 24 based on Foata normal form. 10/2071 useless extension candidates. Maximal degree in co-relation 6514. Up to 350 conditions per place. [2024-11-13 15:26:09,498 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 35 selfloop transitions, 18 changer transitions 7/272 dead transitions. [2024-11-13 15:26:09,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 272 transitions, 1924 flow [2024-11-13 15:26:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1124 transitions. [2024-11-13 15:26:09,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7789327789327789 [2024-11-13 15:26:09,500 INFO L175 Difference]: Start difference. First operand has 195 places, 262 transitions, 1772 flow. Second operand 13 states and 1124 transitions. [2024-11-13 15:26:09,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 272 transitions, 1924 flow [2024-11-13 15:26:09,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 272 transitions, 1871 flow, removed 3 selfloop flow, removed 11 redundant places. [2024-11-13 15:26:09,533 INFO L231 Difference]: Finished difference. Result has 196 places, 255 transitions, 1679 flow [2024-11-13 15:26:09,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1675, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1679, PETRI_PLACES=196, PETRI_TRANSITIONS=255} [2024-11-13 15:26:09,534 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 82 predicate places. [2024-11-13 15:26:09,534 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 255 transitions, 1679 flow [2024-11-13 15:26:09,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:09,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:09,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:09,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 15:26:09,536 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:09,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:09,536 INFO L85 PathProgramCache]: Analyzing trace with hash -260586056, now seen corresponding path program 15 times [2024-11-13 15:26:09,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:09,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494378661] [2024-11-13 15:26:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:09,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:09,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494378661] [2024-11-13 15:26:09,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494378661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:09,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:09,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:09,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957013444] [2024-11-13 15:26:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:09,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:09,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:09,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:09,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:10,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:10,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 255 transitions, 1679 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:10,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:10,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:10,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:11,217 INFO L124 PetriNetUnfolderBase]: 533/2047 cut-off events. [2024-11-13 15:26:11,217 INFO L125 PetriNetUnfolderBase]: For 3640/3720 co-relation queries the response was YES. [2024-11-13 15:26:11,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6458 conditions, 2047 events. 533/2047 cut-off events. For 3640/3720 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16036 event pairs, 25 based on Foata normal form. 13/2053 useless extension candidates. Maximal degree in co-relation 6417. Up to 349 conditions per place. [2024-11-13 15:26:11,225 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 33 selfloop transitions, 20 changer transitions 5/270 dead transitions. [2024-11-13 15:26:11,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 270 transitions, 1891 flow [2024-11-13 15:26:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:11,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2024-11-13 15:26:11,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2024-11-13 15:26:11,226 INFO L175 Difference]: Start difference. First operand has 196 places, 255 transitions, 1679 flow. Second operand 13 states and 1123 transitions. [2024-11-13 15:26:11,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 270 transitions, 1891 flow [2024-11-13 15:26:11,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 270 transitions, 1816 flow, removed 12 selfloop flow, removed 14 redundant places. [2024-11-13 15:26:11,244 INFO L231 Difference]: Finished difference. Result has 191 places, 255 transitions, 1680 flow [2024-11-13 15:26:11,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1680, PETRI_PLACES=191, PETRI_TRANSITIONS=255} [2024-11-13 15:26:11,245 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 77 predicate places. [2024-11-13 15:26:11,245 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 255 transitions, 1680 flow [2024-11-13 15:26:11,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:11,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:11,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:11,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 15:26:11,246 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:11,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:11,247 INFO L85 PathProgramCache]: Analyzing trace with hash 329528768, now seen corresponding path program 16 times [2024-11-13 15:26:11,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:11,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288405341] [2024-11-13 15:26:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:11,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:11,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:11,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288405341] [2024-11-13 15:26:11,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288405341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:11,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853822116] [2024-11-13 15:26:11,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:11,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:11,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:11,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:12,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:12,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 255 transitions, 1680 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:12,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:12,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:12,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:12,712 INFO L124 PetriNetUnfolderBase]: 533/2024 cut-off events. [2024-11-13 15:26:12,712 INFO L125 PetriNetUnfolderBase]: For 3506/3581 co-relation queries the response was YES. [2024-11-13 15:26:12,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6400 conditions, 2024 events. 533/2024 cut-off events. For 3506/3581 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 15805 event pairs, 25 based on Foata normal form. 13/2030 useless extension candidates. Maximal degree in co-relation 6360. Up to 340 conditions per place. [2024-11-13 15:26:12,722 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 30 selfloop transitions, 23 changer transitions 5/270 dead transitions. [2024-11-13 15:26:12,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 270 transitions, 1894 flow [2024-11-13 15:26:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:12,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2024-11-13 15:26:12,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2024-11-13 15:26:12,724 INFO L175 Difference]: Start difference. First operand has 191 places, 255 transitions, 1680 flow. Second operand 13 states and 1122 transitions. [2024-11-13 15:26:12,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 270 transitions, 1894 flow [2024-11-13 15:26:12,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 270 transitions, 1821 flow, removed 12 selfloop flow, removed 13 redundant places. [2024-11-13 15:26:12,745 INFO L231 Difference]: Finished difference. Result has 190 places, 255 transitions, 1680 flow [2024-11-13 15:26:12,745 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1680, PETRI_PLACES=190, PETRI_TRANSITIONS=255} [2024-11-13 15:26:12,745 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 76 predicate places. [2024-11-13 15:26:12,745 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 255 transitions, 1680 flow [2024-11-13 15:26:12,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:12,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:12,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:12,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 15:26:12,746 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:12,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash 561788662, now seen corresponding path program 17 times [2024-11-13 15:26:12,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:12,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472207277] [2024-11-13 15:26:12,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:12,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:13,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:13,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:13,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472207277] [2024-11-13 15:26:13,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472207277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:13,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:13,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:13,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387936848] [2024-11-13 15:26:13,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:13,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:13,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:13,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:13,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:13,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:13,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 255 transitions, 1680 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:13,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:13,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:13,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:14,323 INFO L124 PetriNetUnfolderBase]: 269/1188 cut-off events. [2024-11-13 15:26:14,323 INFO L125 PetriNetUnfolderBase]: For 1759/1794 co-relation queries the response was YES. [2024-11-13 15:26:14,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3584 conditions, 1188 events. 269/1188 cut-off events. For 1759/1794 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7971 event pairs, 14 based on Foata normal form. 8/1193 useless extension candidates. Maximal degree in co-relation 3545. Up to 185 conditions per place. [2024-11-13 15:26:14,328 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 26 selfloop transitions, 11 changer transitions 12/261 dead transitions. [2024-11-13 15:26:14,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 261 transitions, 1779 flow [2024-11-13 15:26:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:14,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2024-11-13 15:26:14,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2024-11-13 15:26:14,330 INFO L175 Difference]: Start difference. First operand has 190 places, 255 transitions, 1680 flow. Second operand 13 states and 1115 transitions. [2024-11-13 15:26:14,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 261 transitions, 1779 flow [2024-11-13 15:26:14,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 261 transitions, 1732 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-13 15:26:14,343 INFO L231 Difference]: Finished difference. Result has 188 places, 241 transitions, 1545 flow [2024-11-13 15:26:14,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1545, PETRI_PLACES=188, PETRI_TRANSITIONS=241} [2024-11-13 15:26:14,343 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 74 predicate places. [2024-11-13 15:26:14,343 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 241 transitions, 1545 flow [2024-11-13 15:26:14,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:14,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:14,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:14,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 15:26:14,344 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:14,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1676344540, now seen corresponding path program 18 times [2024-11-13 15:26:14,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:14,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333264299] [2024-11-13 15:26:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:14,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:14,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333264299] [2024-11-13 15:26:14,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333264299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:14,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:14,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991231438] [2024-11-13 15:26:14,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:14,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:14,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:15,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:15,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 241 transitions, 1545 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:15,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:15,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:15,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:15,879 INFO L124 PetriNetUnfolderBase]: 269/1200 cut-off events. [2024-11-13 15:26:15,879 INFO L125 PetriNetUnfolderBase]: For 1747/1780 co-relation queries the response was YES. [2024-11-13 15:26:15,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 1200 events. 269/1200 cut-off events. For 1747/1780 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8090 event pairs, 18 based on Foata normal form. 6/1202 useless extension candidates. Maximal degree in co-relation 3552. Up to 206 conditions per place. [2024-11-13 15:26:15,884 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 27 selfloop transitions, 15 changer transitions 14/268 dead transitions. [2024-11-13 15:26:15,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 268 transitions, 1813 flow [2024-11-13 15:26:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:15,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:15,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2024-11-13 15:26:15,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2024-11-13 15:26:15,886 INFO L175 Difference]: Start difference. First operand has 188 places, 241 transitions, 1545 flow. Second operand 13 states and 1123 transitions. [2024-11-13 15:26:15,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 268 transitions, 1813 flow [2024-11-13 15:26:15,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 268 transitions, 1678 flow, removed 4 selfloop flow, removed 16 redundant places. [2024-11-13 15:26:15,902 INFO L231 Difference]: Finished difference. Result has 175 places, 241 transitions, 1535 flow [2024-11-13 15:26:15,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1494, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1535, PETRI_PLACES=175, PETRI_TRANSITIONS=241} [2024-11-13 15:26:15,903 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 61 predicate places. [2024-11-13 15:26:15,903 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 241 transitions, 1535 flow [2024-11-13 15:26:15,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:15,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:15,903 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:15,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-13 15:26:15,903 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:15,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:15,904 INFO L85 PathProgramCache]: Analyzing trace with hash 46539744, now seen corresponding path program 19 times [2024-11-13 15:26:15,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:15,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574243766] [2024-11-13 15:26:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:15,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574243766] [2024-11-13 15:26:16,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574243766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:16,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:16,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:16,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889099897] [2024-11-13 15:26:16,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:16,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:16,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:16,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:16,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:17,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:17,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 241 transitions, 1535 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:17,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:17,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:17,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:17,730 INFO L124 PetriNetUnfolderBase]: 521/1941 cut-off events. [2024-11-13 15:26:17,730 INFO L125 PetriNetUnfolderBase]: For 2887/2950 co-relation queries the response was YES. [2024-11-13 15:26:17,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5887 conditions, 1941 events. 521/1941 cut-off events. For 2887/2950 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 14945 event pairs, 21 based on Foata normal form. 11/1945 useless extension candidates. Maximal degree in co-relation 5852. Up to 343 conditions per place. [2024-11-13 15:26:17,738 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 28 selfloop transitions, 20 changer transitions 2/262 dead transitions. [2024-11-13 15:26:17,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 262 transitions, 1730 flow [2024-11-13 15:26:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1117 transitions. [2024-11-13 15:26:17,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.774081774081774 [2024-11-13 15:26:17,741 INFO L175 Difference]: Start difference. First operand has 175 places, 241 transitions, 1535 flow. Second operand 13 states and 1117 transitions. [2024-11-13 15:26:17,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 262 transitions, 1730 flow [2024-11-13 15:26:17,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 262 transitions, 1670 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-13 15:26:17,758 INFO L231 Difference]: Finished difference. Result has 177 places, 247 transitions, 1594 flow [2024-11-13 15:26:17,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1594, PETRI_PLACES=177, PETRI_TRANSITIONS=247} [2024-11-13 15:26:17,758 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 63 predicate places. [2024-11-13 15:26:17,758 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 247 transitions, 1594 flow [2024-11-13 15:26:17,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:17,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:17,759 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:17,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-13 15:26:17,759 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:17,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:17,760 INFO L85 PathProgramCache]: Analyzing trace with hash 580895194, now seen corresponding path program 20 times [2024-11-13 15:26:17,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:17,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267112959] [2024-11-13 15:26:17,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:18,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:18,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267112959] [2024-11-13 15:26:18,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267112959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:18,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:18,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:18,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115279917] [2024-11-13 15:26:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:18,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:18,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:18,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:18,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:18,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:18,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 247 transitions, 1594 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:18,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:18,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:18,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:19,504 INFO L124 PetriNetUnfolderBase]: 785/2863 cut-off events. [2024-11-13 15:26:19,504 INFO L125 PetriNetUnfolderBase]: For 4698/4804 co-relation queries the response was YES. [2024-11-13 15:26:19,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8915 conditions, 2863 events. 785/2863 cut-off events. For 4698/4804 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 24442 event pairs, 36 based on Foata normal form. 14/2865 useless extension candidates. Maximal degree in co-relation 8879. Up to 539 conditions per place. [2024-11-13 15:26:19,539 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 36 selfloop transitions, 20 changer transitions 5/273 dead transitions. [2024-11-13 15:26:19,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 273 transitions, 1847 flow [2024-11-13 15:26:19,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:19,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2024-11-13 15:26:19,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2024-11-13 15:26:19,541 INFO L175 Difference]: Start difference. First operand has 177 places, 247 transitions, 1594 flow. Second operand 13 states and 1121 transitions. [2024-11-13 15:26:19,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 273 transitions, 1847 flow [2024-11-13 15:26:19,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 273 transitions, 1797 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-13 15:26:19,585 INFO L231 Difference]: Finished difference. Result has 184 places, 253 transitions, 1668 flow [2024-11-13 15:26:19,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1566, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1668, PETRI_PLACES=184, PETRI_TRANSITIONS=253} [2024-11-13 15:26:19,586 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 70 predicate places. [2024-11-13 15:26:19,586 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 253 transitions, 1668 flow [2024-11-13 15:26:19,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:19,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:19,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:19,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 15:26:19,587 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:19,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash -726906812, now seen corresponding path program 21 times [2024-11-13 15:26:19,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:19,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722184026] [2024-11-13 15:26:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:19,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:19,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722184026] [2024-11-13 15:26:19,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722184026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:19,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:19,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:19,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75128284] [2024-11-13 15:26:19,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:19,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:19,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:19,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:19,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:20,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:20,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 253 transitions, 1668 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:20,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:20,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:20,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:21,390 INFO L124 PetriNetUnfolderBase]: 1050/3695 cut-off events. [2024-11-13 15:26:21,391 INFO L125 PetriNetUnfolderBase]: For 6771/6916 co-relation queries the response was YES. [2024-11-13 15:26:21,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11746 conditions, 3695 events. 1050/3695 cut-off events. For 6771/6916 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 33514 event pairs, 46 based on Foata normal form. 18/3698 useless extension candidates. Maximal degree in co-relation 11706. Up to 695 conditions per place. [2024-11-13 15:26:21,414 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 34 selfloop transitions, 25 changer transitions 3/274 dead transitions. [2024-11-13 15:26:21,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 274 transitions, 1930 flow [2024-11-13 15:26:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:21,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2024-11-13 15:26:21,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2024-11-13 15:26:21,416 INFO L175 Difference]: Start difference. First operand has 184 places, 253 transitions, 1668 flow. Second operand 13 states and 1121 transitions. [2024-11-13 15:26:21,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 274 transitions, 1930 flow [2024-11-13 15:26:21,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 274 transitions, 1882 flow, removed 6 selfloop flow, removed 9 redundant places. [2024-11-13 15:26:21,454 INFO L231 Difference]: Finished difference. Result has 190 places, 260 transitions, 1767 flow [2024-11-13 15:26:21,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1767, PETRI_PLACES=190, PETRI_TRANSITIONS=260} [2024-11-13 15:26:21,455 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 76 predicate places. [2024-11-13 15:26:21,455 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 260 transitions, 1767 flow [2024-11-13 15:26:21,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:21,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:21,455 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:21,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-13 15:26:21,456 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:21,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:21,456 INFO L85 PathProgramCache]: Analyzing trace with hash 542546844, now seen corresponding path program 22 times [2024-11-13 15:26:21,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:21,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087318902] [2024-11-13 15:26:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:21,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:21,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:21,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087318902] [2024-11-13 15:26:21,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087318902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:21,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:21,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:21,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732488483] [2024-11-13 15:26:21,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:21,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:21,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:21,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:21,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:22,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:22,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 260 transitions, 1767 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:22,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:22,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:22,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:23,330 INFO L124 PetriNetUnfolderBase]: 1319/4585 cut-off events. [2024-11-13 15:26:23,330 INFO L125 PetriNetUnfolderBase]: For 9308/9510 co-relation queries the response was YES. [2024-11-13 15:26:23,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14904 conditions, 4585 events. 1319/4585 cut-off events. For 9308/9510 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 43603 event pairs, 68 based on Foata normal form. 19/4585 useless extension candidates. Maximal degree in co-relation 14861. Up to 865 conditions per place. [2024-11-13 15:26:23,358 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 45 selfloop transitions, 25 changer transitions 4/286 dead transitions. [2024-11-13 15:26:23,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 286 transitions, 2091 flow [2024-11-13 15:26:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1127 transitions. [2024-11-13 15:26:23,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.781011781011781 [2024-11-13 15:26:23,359 INFO L175 Difference]: Start difference. First operand has 190 places, 260 transitions, 1767 flow. Second operand 13 states and 1127 transitions. [2024-11-13 15:26:23,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 286 transitions, 2091 flow [2024-11-13 15:26:23,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 286 transitions, 2036 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-11-13 15:26:23,406 INFO L231 Difference]: Finished difference. Result has 199 places, 267 transitions, 1874 flow [2024-11-13 15:26:23,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1724, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1874, PETRI_PLACES=199, PETRI_TRANSITIONS=267} [2024-11-13 15:26:23,407 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 85 predicate places. [2024-11-13 15:26:23,407 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 267 transitions, 1874 flow [2024-11-13 15:26:23,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:23,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:23,408 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:23,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-13 15:26:23,408 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:23,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash -600335548, now seen corresponding path program 23 times [2024-11-13 15:26:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:23,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945582452] [2024-11-13 15:26:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:23,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:23,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945582452] [2024-11-13 15:26:23,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945582452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:23,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641559611] [2024-11-13 15:26:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:23,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:24,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:24,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 267 transitions, 1874 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:24,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:24,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:24,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:25,115 INFO L124 PetriNetUnfolderBase]: 1319/4653 cut-off events. [2024-11-13 15:26:25,115 INFO L125 PetriNetUnfolderBase]: For 10058/10258 co-relation queries the response was YES. [2024-11-13 15:26:25,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15255 conditions, 4653 events. 1319/4653 cut-off events. For 10058/10258 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 44369 event pairs, 60 based on Foata normal form. 28/4661 useless extension candidates. Maximal degree in co-relation 15207. Up to 901 conditions per place. [2024-11-13 15:26:25,152 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 44 selfloop transitions, 29 changer transitions 6/291 dead transitions. [2024-11-13 15:26:25,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 291 transitions, 2209 flow [2024-11-13 15:26:25,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1120 transitions. [2024-11-13 15:26:25,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7761607761607762 [2024-11-13 15:26:25,154 INFO L175 Difference]: Start difference. First operand has 199 places, 267 transitions, 1874 flow. Second operand 13 states and 1120 transitions. [2024-11-13 15:26:25,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 291 transitions, 2209 flow [2024-11-13 15:26:25,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 291 transitions, 2144 flow, removed 19 selfloop flow, removed 8 redundant places. [2024-11-13 15:26:25,289 INFO L231 Difference]: Finished difference. Result has 206 places, 269 transitions, 1935 flow [2024-11-13 15:26:25,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1824, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1935, PETRI_PLACES=206, PETRI_TRANSITIONS=269} [2024-11-13 15:26:25,290 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 92 predicate places. [2024-11-13 15:26:25,290 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 269 transitions, 1935 flow [2024-11-13 15:26:25,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:25,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:25,290 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:25,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-13 15:26:25,291 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:25,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1085547526, now seen corresponding path program 24 times [2024-11-13 15:26:25,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:25,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095103609] [2024-11-13 15:26:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:25,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:25,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:25,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095103609] [2024-11-13 15:26:25,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095103609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:25,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:25,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838045444] [2024-11-13 15:26:25,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:25,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:25,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:25,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:25,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:26,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:26,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 269 transitions, 1935 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:26,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:26,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:26,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:27,017 INFO L124 PetriNetUnfolderBase]: 1317/4618 cut-off events. [2024-11-13 15:26:27,017 INFO L125 PetriNetUnfolderBase]: For 10586/10770 co-relation queries the response was YES. [2024-11-13 15:26:27,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15293 conditions, 4618 events. 1317/4618 cut-off events. For 10586/10770 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 44021 event pairs, 64 based on Foata normal form. 20/4618 useless extension candidates. Maximal degree in co-relation 15242. Up to 875 conditions per place. [2024-11-13 15:26:27,056 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 41 selfloop transitions, 27 changer transitions 1/281 dead transitions. [2024-11-13 15:26:27,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 281 transitions, 2183 flow [2024-11-13 15:26:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2024-11-13 15:26:27,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2024-11-13 15:26:27,058 INFO L175 Difference]: Start difference. First operand has 206 places, 269 transitions, 1935 flow. Second operand 13 states and 1122 transitions. [2024-11-13 15:26:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 281 transitions, 2183 flow [2024-11-13 15:26:27,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 281 transitions, 2066 flow, removed 25 selfloop flow, removed 12 redundant places. [2024-11-13 15:26:27,117 INFO L231 Difference]: Finished difference. Result has 209 places, 273 transitions, 1961 flow [2024-11-13 15:26:27,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1846, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1961, PETRI_PLACES=209, PETRI_TRANSITIONS=273} [2024-11-13 15:26:27,117 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 95 predicate places. [2024-11-13 15:26:27,117 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 273 transitions, 1961 flow [2024-11-13 15:26:27,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:27,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:27,118 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:27,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-13 15:26:27,118 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:27,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1807623702, now seen corresponding path program 25 times [2024-11-13 15:26:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:27,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303457025] [2024-11-13 15:26:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:27,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:27,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:27,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:27,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303457025] [2024-11-13 15:26:27,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303457025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:27,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:27,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:27,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671439842] [2024-11-13 15:26:27,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:27,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:27,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:28,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:28,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 273 transitions, 1961 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:28,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:28,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:28,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:28,941 INFO L124 PetriNetUnfolderBase]: 1580/5501 cut-off events. [2024-11-13 15:26:28,941 INFO L125 PetriNetUnfolderBase]: For 12549/12746 co-relation queries the response was YES. [2024-11-13 15:26:28,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18193 conditions, 5501 events. 1580/5501 cut-off events. For 12549/12746 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 54514 event pairs, 73 based on Foata normal form. 16/5493 useless extension candidates. Maximal degree in co-relation 18142. Up to 1058 conditions per place. [2024-11-13 15:26:28,983 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 47 selfloop transitions, 28 changer transitions 4/291 dead transitions. [2024-11-13 15:26:28,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 291 transitions, 2292 flow [2024-11-13 15:26:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2024-11-13 15:26:28,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2024-11-13 15:26:28,985 INFO L175 Difference]: Start difference. First operand has 209 places, 273 transitions, 1961 flow. Second operand 13 states and 1123 transitions. [2024-11-13 15:26:28,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 291 transitions, 2292 flow [2024-11-13 15:26:29,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 291 transitions, 2196 flow, removed 30 selfloop flow, removed 8 redundant places. [2024-11-13 15:26:29,063 INFO L231 Difference]: Finished difference. Result has 216 places, 279 transitions, 2046 flow [2024-11-13 15:26:29,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1902, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2046, PETRI_PLACES=216, PETRI_TRANSITIONS=279} [2024-11-13 15:26:29,063 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 102 predicate places. [2024-11-13 15:26:29,063 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 279 transitions, 2046 flow [2024-11-13 15:26:29,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:29,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:29,064 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:29,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 15:26:29,064 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:29,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:29,065 INFO L85 PathProgramCache]: Analyzing trace with hash 977429834, now seen corresponding path program 26 times [2024-11-13 15:26:29,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:29,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317996794] [2024-11-13 15:26:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:29,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:29,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:29,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317996794] [2024-11-13 15:26:29,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317996794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:29,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171474369] [2024-11-13 15:26:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:29,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:29,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:30,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:30,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 279 transitions, 2046 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:30,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:30,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:30,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:30,892 INFO L124 PetriNetUnfolderBase]: 1579/5502 cut-off events. [2024-11-13 15:26:30,892 INFO L125 PetriNetUnfolderBase]: For 12656/12862 co-relation queries the response was YES. [2024-11-13 15:26:30,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18233 conditions, 5502 events. 1579/5502 cut-off events. For 12656/12862 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 54582 event pairs, 75 based on Foata normal form. 21/5499 useless extension candidates. Maximal degree in co-relation 18179. Up to 1054 conditions per place. [2024-11-13 15:26:30,933 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 45 selfloop transitions, 27 changer transitions 4/288 dead transitions. [2024-11-13 15:26:30,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 288 transitions, 2274 flow [2024-11-13 15:26:30,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:30,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2024-11-13 15:26:30,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2024-11-13 15:26:30,935 INFO L175 Difference]: Start difference. First operand has 216 places, 279 transitions, 2046 flow. Second operand 13 states and 1123 transitions. [2024-11-13 15:26:30,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 288 transitions, 2274 flow [2024-11-13 15:26:31,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 288 transitions, 2228 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-13 15:26:31,006 INFO L231 Difference]: Finished difference. Result has 221 places, 279 transitions, 2073 flow [2024-11-13 15:26:31,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2004, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2073, PETRI_PLACES=221, PETRI_TRANSITIONS=279} [2024-11-13 15:26:31,006 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 107 predicate places. [2024-11-13 15:26:31,006 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 279 transitions, 2073 flow [2024-11-13 15:26:31,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:31,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:31,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:31,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-13 15:26:31,007 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:31,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 223683764, now seen corresponding path program 27 times [2024-11-13 15:26:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636238147] [2024-11-13 15:26:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:31,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:31,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636238147] [2024-11-13 15:26:31,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636238147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:31,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:31,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:31,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274093995] [2024-11-13 15:26:31,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:31,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:31,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:31,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:31,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:31,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:31,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 279 transitions, 2073 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:31,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:31,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:31,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:32,809 INFO L124 PetriNetUnfolderBase]: 1316/4688 cut-off events. [2024-11-13 15:26:32,809 INFO L125 PetriNetUnfolderBase]: For 10892/11056 co-relation queries the response was YES. [2024-11-13 15:26:32,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15507 conditions, 4688 events. 1316/4688 cut-off events. For 10892/11056 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 44952 event pairs, 64 based on Foata normal form. 13/4681 useless extension candidates. Maximal degree in co-relation 15451. Up to 883 conditions per place. [2024-11-13 15:26:32,840 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 42 selfloop transitions, 22 changer transitions 10/286 dead transitions. [2024-11-13 15:26:32,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 286 transitions, 2247 flow [2024-11-13 15:26:32,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:32,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1119 transitions. [2024-11-13 15:26:32,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7754677754677755 [2024-11-13 15:26:32,842 INFO L175 Difference]: Start difference. First operand has 221 places, 279 transitions, 2073 flow. Second operand 13 states and 1119 transitions. [2024-11-13 15:26:32,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 286 transitions, 2247 flow [2024-11-13 15:26:32,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 286 transitions, 2172 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-11-13 15:26:32,895 INFO L231 Difference]: Finished difference. Result has 222 places, 273 transitions, 1972 flow [2024-11-13 15:26:32,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1972, PETRI_PLACES=222, PETRI_TRANSITIONS=273} [2024-11-13 15:26:32,896 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 108 predicate places. [2024-11-13 15:26:32,896 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 273 transitions, 1972 flow [2024-11-13 15:26:32,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:32,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:32,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:32,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-13 15:26:32,896 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:32,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1599767704, now seen corresponding path program 28 times [2024-11-13 15:26:32,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:32,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63397756] [2024-11-13 15:26:32,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:32,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:33,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63397756] [2024-11-13 15:26:33,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63397756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:33,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:33,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:33,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995765437] [2024-11-13 15:26:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:33,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:33,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:33,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:33,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:33,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 273 transitions, 1972 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:33,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:33,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:33,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:34,725 INFO L124 PetriNetUnfolderBase]: 1314/4632 cut-off events. [2024-11-13 15:26:34,725 INFO L125 PetriNetUnfolderBase]: For 10498/10663 co-relation queries the response was YES. [2024-11-13 15:26:34,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15249 conditions, 4632 events. 1314/4632 cut-off events. For 10498/10663 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 44209 event pairs, 64 based on Foata normal form. 15/4627 useless extension candidates. Maximal degree in co-relation 15192. Up to 876 conditions per place. [2024-11-13 15:26:34,755 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 39 selfloop transitions, 27 changer transitions 3/281 dead transitions. [2024-11-13 15:26:34,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 281 transitions, 2192 flow [2024-11-13 15:26:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2024-11-13 15:26:34,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2024-11-13 15:26:34,757 INFO L175 Difference]: Start difference. First operand has 222 places, 273 transitions, 1972 flow. Second operand 13 states and 1122 transitions. [2024-11-13 15:26:34,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 281 transitions, 2192 flow [2024-11-13 15:26:34,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 281 transitions, 2112 flow, removed 14 selfloop flow, removed 15 redundant places. [2024-11-13 15:26:34,809 INFO L231 Difference]: Finished difference. Result has 218 places, 275 transitions, 2007 flow [2024-11-13 15:26:34,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2007, PETRI_PLACES=218, PETRI_TRANSITIONS=275} [2024-11-13 15:26:34,809 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 104 predicate places. [2024-11-13 15:26:34,810 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 275 transitions, 2007 flow [2024-11-13 15:26:34,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:34,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:34,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:34,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-13 15:26:34,810 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:34,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1316282500, now seen corresponding path program 29 times [2024-11-13 15:26:34,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:34,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340422361] [2024-11-13 15:26:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340422361] [2024-11-13 15:26:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340422361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:35,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:35,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636230872] [2024-11-13 15:26:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:35,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:35,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:35,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:35,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 275 transitions, 2007 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:35,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:35,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:35,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:36,604 INFO L124 PetriNetUnfolderBase]: 1050/3844 cut-off events. [2024-11-13 15:26:36,604 INFO L125 PetriNetUnfolderBase]: For 8355/8486 co-relation queries the response was YES. [2024-11-13 15:26:36,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12608 conditions, 3844 events. 1050/3844 cut-off events. For 8355/8486 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 35241 event pairs, 54 based on Foata normal form. 11/3839 useless extension candidates. Maximal degree in co-relation 12552. Up to 722 conditions per place. [2024-11-13 15:26:36,695 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 35 selfloop transitions, 19 changer transitions 10/276 dead transitions. [2024-11-13 15:26:36,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 276 transitions, 2114 flow [2024-11-13 15:26:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1118 transitions. [2024-11-13 15:26:36,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7747747747747747 [2024-11-13 15:26:36,696 INFO L175 Difference]: Start difference. First operand has 218 places, 275 transitions, 2007 flow. Second operand 13 states and 1118 transitions. [2024-11-13 15:26:36,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 276 transitions, 2114 flow [2024-11-13 15:26:36,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 276 transitions, 2063 flow, removed 5 selfloop flow, removed 9 redundant places. [2024-11-13 15:26:36,741 INFO L231 Difference]: Finished difference. Result has 220 places, 265 transitions, 1863 flow [2024-11-13 15:26:36,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1900, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1863, PETRI_PLACES=220, PETRI_TRANSITIONS=265} [2024-11-13 15:26:36,742 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 106 predicate places. [2024-11-13 15:26:36,742 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 265 transitions, 1863 flow [2024-11-13 15:26:36,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:36,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:36,743 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:36,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-13 15:26:36,743 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:36,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash -156501844, now seen corresponding path program 30 times [2024-11-13 15:26:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422831844] [2024-11-13 15:26:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:37,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:37,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422831844] [2024-11-13 15:26:37,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422831844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:37,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:37,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:37,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400857963] [2024-11-13 15:26:37,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:37,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:37,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:37,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:37,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:37,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:37,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 265 transitions, 1863 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:37,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:37,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:37,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:38,394 INFO L124 PetriNetUnfolderBase]: 784/2891 cut-off events. [2024-11-13 15:26:38,394 INFO L125 PetriNetUnfolderBase]: For 5790/5897 co-relation queries the response was YES. [2024-11-13 15:26:38,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9381 conditions, 2891 events. 784/2891 cut-off events. For 5790/5897 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 24936 event pairs, 33 based on Foata normal form. 15/2894 useless extension candidates. Maximal degree in co-relation 9326. Up to 524 conditions per place. [2024-11-13 15:26:38,411 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 35 selfloop transitions, 20 changer transitions 8/275 dead transitions. [2024-11-13 15:26:38,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 275 transitions, 2037 flow [2024-11-13 15:26:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1111 transitions. [2024-11-13 15:26:38,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699237699237699 [2024-11-13 15:26:38,413 INFO L175 Difference]: Start difference. First operand has 220 places, 265 transitions, 1863 flow. Second operand 13 states and 1111 transitions. [2024-11-13 15:26:38,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 275 transitions, 2037 flow [2024-11-13 15:26:38,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 275 transitions, 1930 flow, removed 19 selfloop flow, removed 20 redundant places. [2024-11-13 15:26:38,442 INFO L231 Difference]: Finished difference. Result has 205 places, 259 transitions, 1748 flow [2024-11-13 15:26:38,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1726, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1748, PETRI_PLACES=205, PETRI_TRANSITIONS=259} [2024-11-13 15:26:38,443 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 91 predicate places. [2024-11-13 15:26:38,443 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 259 transitions, 1748 flow [2024-11-13 15:26:38,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:38,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:38,443 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:38,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-13 15:26:38,443 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:38,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1605248558, now seen corresponding path program 31 times [2024-11-13 15:26:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:38,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611613715] [2024-11-13 15:26:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:38,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:38,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:38,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611613715] [2024-11-13 15:26:38,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611613715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:38,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:38,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:38,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106773222] [2024-11-13 15:26:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:38,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:38,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:38,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:39,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:39,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 259 transitions, 1748 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:39,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:39,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:39,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:39,991 INFO L124 PetriNetUnfolderBase]: 783/2886 cut-off events. [2024-11-13 15:26:39,991 INFO L125 PetriNetUnfolderBase]: For 5212/5313 co-relation queries the response was YES. [2024-11-13 15:26:39,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9211 conditions, 2886 events. 783/2886 cut-off events. For 5212/5313 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 24865 event pairs, 37 based on Foata normal form. 11/2885 useless extension candidates. Maximal degree in co-relation 9163. Up to 544 conditions per place. [2024-11-13 15:26:40,004 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 28 selfloop transitions, 24 changer transitions 4/268 dead transitions. [2024-11-13 15:26:40,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 268 transitions, 1917 flow [2024-11-13 15:26:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2024-11-13 15:26:40,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2024-11-13 15:26:40,006 INFO L175 Difference]: Start difference. First operand has 205 places, 259 transitions, 1748 flow. Second operand 13 states and 1114 transitions. [2024-11-13 15:26:40,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 268 transitions, 1917 flow [2024-11-13 15:26:40,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 268 transitions, 1840 flow, removed 8 selfloop flow, removed 16 redundant places. [2024-11-13 15:26:40,048 INFO L231 Difference]: Finished difference. Result has 198 places, 259 transitions, 1734 flow [2024-11-13 15:26:40,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1734, PETRI_PLACES=198, PETRI_TRANSITIONS=259} [2024-11-13 15:26:40,048 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 84 predicate places. [2024-11-13 15:26:40,049 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 259 transitions, 1734 flow [2024-11-13 15:26:40,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:40,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:40,049 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:40,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-13 15:26:40,049 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:40,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:40,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1149947470, now seen corresponding path program 10 times [2024-11-13 15:26:40,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:40,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691728870] [2024-11-13 15:26:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:40,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:40,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691728870] [2024-11-13 15:26:40,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691728870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:40,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:40,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:40,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995560392] [2024-11-13 15:26:40,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:40,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:40,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:40,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:40,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:40,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:40,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 259 transitions, 1734 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:40,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:40,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:40,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:41,415 INFO L124 PetriNetUnfolderBase]: 782/2923 cut-off events. [2024-11-13 15:26:41,415 INFO L125 PetriNetUnfolderBase]: For 5265/5366 co-relation queries the response was YES. [2024-11-13 15:26:41,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9276 conditions, 2923 events. 782/2923 cut-off events. For 5265/5366 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 25298 event pairs, 38 based on Foata normal form. 10/2921 useless extension candidates. Maximal degree in co-relation 9232. Up to 550 conditions per place. [2024-11-13 15:26:41,430 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 29 selfloop transitions, 21 changer transitions 6/268 dead transitions. [2024-11-13 15:26:41,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 268 transitions, 1901 flow [2024-11-13 15:26:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2024-11-13 15:26:41,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2024-11-13 15:26:41,432 INFO L175 Difference]: Start difference. First operand has 198 places, 259 transitions, 1734 flow. Second operand 13 states and 1115 transitions. [2024-11-13 15:26:41,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 268 transitions, 1901 flow [2024-11-13 15:26:41,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 268 transitions, 1852 flow, removed 2 selfloop flow, removed 11 redundant places. [2024-11-13 15:26:41,459 INFO L231 Difference]: Finished difference. Result has 201 places, 259 transitions, 1745 flow [2024-11-13 15:26:41,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1745, PETRI_PLACES=201, PETRI_TRANSITIONS=259} [2024-11-13 15:26:41,459 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 87 predicate places. [2024-11-13 15:26:41,459 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 259 transitions, 1745 flow [2024-11-13 15:26:41,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:41,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:41,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:41,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-13 15:26:41,460 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:41,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1080939058, now seen corresponding path program 11 times [2024-11-13 15:26:41,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:41,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586017796] [2024-11-13 15:26:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:41,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586017796] [2024-11-13 15:26:41,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586017796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:41,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:41,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:41,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746901438] [2024-11-13 15:26:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:41,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:41,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:41,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:42,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:42,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 259 transitions, 1745 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:42,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:42,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:42,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:42,749 INFO L124 PetriNetUnfolderBase]: 518/2084 cut-off events. [2024-11-13 15:26:42,749 INFO L125 PetriNetUnfolderBase]: For 3383/3448 co-relation queries the response was YES. [2024-11-13 15:26:42,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6506 conditions, 2084 events. 518/2084 cut-off events. For 3383/3448 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16454 event pairs, 27 based on Foata normal form. 7/2083 useless extension candidates. Maximal degree in co-relation 6460. Up to 382 conditions per place. [2024-11-13 15:26:42,760 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 22 selfloop transitions, 15 changer transitions 13/262 dead transitions. [2024-11-13 15:26:42,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 262 transitions, 1847 flow [2024-11-13 15:26:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:42,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1110 transitions. [2024-11-13 15:26:42,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2024-11-13 15:26:42,762 INFO L175 Difference]: Start difference. First operand has 201 places, 259 transitions, 1745 flow. Second operand 13 states and 1110 transitions. [2024-11-13 15:26:42,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 262 transitions, 1847 flow [2024-11-13 15:26:42,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 262 transitions, 1798 flow, removed 5 selfloop flow, removed 11 redundant places. [2024-11-13 15:26:42,795 INFO L231 Difference]: Finished difference. Result has 200 places, 248 transitions, 1622 flow [2024-11-13 15:26:42,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1650, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1622, PETRI_PLACES=200, PETRI_TRANSITIONS=248} [2024-11-13 15:26:42,796 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 86 predicate places. [2024-11-13 15:26:42,796 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 248 transitions, 1622 flow [2024-11-13 15:26:42,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:42,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:42,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:42,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-13 15:26:42,797 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:42,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash -605094856, now seen corresponding path program 32 times [2024-11-13 15:26:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209197916] [2024-11-13 15:26:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:42,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:43,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:43,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209197916] [2024-11-13 15:26:43,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209197916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:43,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:43,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:43,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171473606] [2024-11-13 15:26:43,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:43,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:43,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:43,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:43,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 248 transitions, 1622 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:43,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:43,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:43,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:44,288 INFO L124 PetriNetUnfolderBase]: 508/1918 cut-off events. [2024-11-13 15:26:44,288 INFO L125 PetriNetUnfolderBase]: For 3086/3152 co-relation queries the response was YES. [2024-11-13 15:26:44,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5968 conditions, 1918 events. 508/1918 cut-off events. For 3086/3152 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14891 event pairs, 21 based on Foata normal form. 12/1922 useless extension candidates. Maximal degree in co-relation 5923. Up to 356 conditions per place. [2024-11-13 15:26:44,297 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 23 selfloop transitions, 22 changer transitions 2/259 dead transitions. [2024-11-13 15:26:44,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 259 transitions, 1774 flow [2024-11-13 15:26:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2024-11-13 15:26:44,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2024-11-13 15:26:44,299 INFO L175 Difference]: Start difference. First operand has 200 places, 248 transitions, 1622 flow. Second operand 13 states and 1114 transitions. [2024-11-13 15:26:44,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 259 transitions, 1774 flow [2024-11-13 15:26:44,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 259 transitions, 1691 flow, removed 10 selfloop flow, removed 17 redundant places. [2024-11-13 15:26:44,319 INFO L231 Difference]: Finished difference. Result has 188 places, 252 transitions, 1645 flow [2024-11-13 15:26:44,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1559, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1645, PETRI_PLACES=188, PETRI_TRANSITIONS=252} [2024-11-13 15:26:44,320 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 74 predicate places. [2024-11-13 15:26:44,320 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 252 transitions, 1645 flow [2024-11-13 15:26:44,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:44,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:44,320 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:44,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-13 15:26:44,320 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:44,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1839422912, now seen corresponding path program 33 times [2024-11-13 15:26:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:44,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015178617] [2024-11-13 15:26:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:44,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:44,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015178617] [2024-11-13 15:26:44,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015178617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:44,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:44,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686332181] [2024-11-13 15:26:44,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:44,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:44,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:44,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:44,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:45,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:45,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 252 transitions, 1645 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:45,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:45,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:45,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:45,903 INFO L124 PetriNetUnfolderBase]: 247/1097 cut-off events. [2024-11-13 15:26:45,903 INFO L125 PetriNetUnfolderBase]: For 1613/1648 co-relation queries the response was YES. [2024-11-13 15:26:45,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 1097 events. 247/1097 cut-off events. For 1613/1648 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 7211 event pairs, 11 based on Foata normal form. 6/1099 useless extension candidates. Maximal degree in co-relation 3245. Up to 194 conditions per place. [2024-11-13 15:26:45,928 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 21 selfloop transitions, 12 changer transitions 9/254 dead transitions. [2024-11-13 15:26:45,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 254 transitions, 1722 flow [2024-11-13 15:26:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:45,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1108 transitions. [2024-11-13 15:26:45,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7678447678447679 [2024-11-13 15:26:45,930 INFO L175 Difference]: Start difference. First operand has 188 places, 252 transitions, 1645 flow. Second operand 13 states and 1108 transitions. [2024-11-13 15:26:45,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 254 transitions, 1722 flow [2024-11-13 15:26:45,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 254 transitions, 1687 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-11-13 15:26:45,945 INFO L231 Difference]: Finished difference. Result has 192 places, 241 transitions, 1545 flow [2024-11-13 15:26:45,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1567, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1545, PETRI_PLACES=192, PETRI_TRANSITIONS=241} [2024-11-13 15:26:45,945 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 78 predicate places. [2024-11-13 15:26:45,945 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 241 transitions, 1545 flow [2024-11-13 15:26:45,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:45,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:45,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:45,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-13 15:26:45,946 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:45,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:45,946 INFO L85 PathProgramCache]: Analyzing trace with hash -709888218, now seen corresponding path program 34 times [2024-11-13 15:26:45,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:45,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282960915] [2024-11-13 15:26:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:46,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:46,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282960915] [2024-11-13 15:26:46,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282960915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:46,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:46,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:46,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759754459] [2024-11-13 15:26:46,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:46,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:46,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:46,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:46,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:47,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:47,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 241 transitions, 1545 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:47,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:47,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:47,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:47,494 INFO L124 PetriNetUnfolderBase]: 246/1035 cut-off events. [2024-11-13 15:26:47,494 INFO L125 PetriNetUnfolderBase]: For 1520/1554 co-relation queries the response was YES. [2024-11-13 15:26:47,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3075 conditions, 1035 events. 246/1035 cut-off events. For 1520/1554 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6692 event pairs, 12 based on Foata normal form. 8/1039 useless extension candidates. Maximal degree in co-relation 3033. Up to 176 conditions per place. [2024-11-13 15:26:47,498 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 14 selfloop transitions, 19 changer transitions 2/247 dead transitions. [2024-11-13 15:26:47,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 247 transitions, 1657 flow [2024-11-13 15:26:47,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1102 transitions. [2024-11-13 15:26:47,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7636867636867637 [2024-11-13 15:26:47,500 INFO L175 Difference]: Start difference. First operand has 192 places, 241 transitions, 1545 flow. Second operand 13 states and 1102 transitions. [2024-11-13 15:26:47,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 247 transitions, 1657 flow [2024-11-13 15:26:47,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 247 transitions, 1585 flow, removed 5 selfloop flow, removed 17 redundant places. [2024-11-13 15:26:47,511 INFO L231 Difference]: Finished difference. Result has 179 places, 241 transitions, 1542 flow [2024-11-13 15:26:47,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1497, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1542, PETRI_PLACES=179, PETRI_TRANSITIONS=241} [2024-11-13 15:26:47,511 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 65 predicate places. [2024-11-13 15:26:47,511 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 241 transitions, 1542 flow [2024-11-13 15:26:47,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:47,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:47,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:47,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-13 15:26:47,512 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:47,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:47,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2024137790, now seen corresponding path program 35 times [2024-11-13 15:26:47,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:47,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726004372] [2024-11-13 15:26:47,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:47,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:47,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:47,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726004372] [2024-11-13 15:26:47,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726004372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:47,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:47,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:47,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997780712] [2024-11-13 15:26:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:47,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:47,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:47,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:47,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:48,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:48,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 241 transitions, 1542 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:48,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:48,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:48,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:48,836 INFO L124 PetriNetUnfolderBase]: 508/1902 cut-off events. [2024-11-13 15:26:48,836 INFO L125 PetriNetUnfolderBase]: For 2997/3061 co-relation queries the response was YES. [2024-11-13 15:26:48,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5814 conditions, 1902 events. 508/1902 cut-off events. For 2997/3061 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 14757 event pairs, 21 based on Foata normal form. 8/1902 useless extension candidates. Maximal degree in co-relation 5776. Up to 354 conditions per place. [2024-11-13 15:26:48,844 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 20 selfloop transitions, 20 changer transitions 2/254 dead transitions. [2024-11-13 15:26:48,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 254 transitions, 1694 flow [2024-11-13 15:26:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:48,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1109 transitions. [2024-11-13 15:26:48,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7685377685377686 [2024-11-13 15:26:48,846 INFO L175 Difference]: Start difference. First operand has 179 places, 241 transitions, 1542 flow. Second operand 13 states and 1109 transitions. [2024-11-13 15:26:48,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 254 transitions, 1694 flow [2024-11-13 15:26:48,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 254 transitions, 1630 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-13 15:26:48,861 INFO L231 Difference]: Finished difference. Result has 182 places, 247 transitions, 1594 flow [2024-11-13 15:26:48,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1594, PETRI_PLACES=182, PETRI_TRANSITIONS=247} [2024-11-13 15:26:48,861 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 68 predicate places. [2024-11-13 15:26:48,861 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 247 transitions, 1594 flow [2024-11-13 15:26:48,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:48,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:48,862 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:48,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-13 15:26:48,862 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:48,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash 973296700, now seen corresponding path program 36 times [2024-11-13 15:26:48,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:48,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733608778] [2024-11-13 15:26:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:48,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:49,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733608778] [2024-11-13 15:26:49,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733608778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:49,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:49,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:49,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683181354] [2024-11-13 15:26:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:49,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:49,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:49,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:49,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:49,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:49,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 247 transitions, 1594 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:49,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:49,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:49,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:50,368 INFO L124 PetriNetUnfolderBase]: 507/1921 cut-off events. [2024-11-13 15:26:50,368 INFO L125 PetriNetUnfolderBase]: For 3175/3258 co-relation queries the response was YES. [2024-11-13 15:26:50,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5952 conditions, 1921 events. 507/1921 cut-off events. For 3175/3258 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14959 event pairs, 23 based on Foata normal form. 13/1926 useless extension candidates. Maximal degree in co-relation 5911. Up to 355 conditions per place. [2024-11-13 15:26:50,378 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 18 selfloop transitions, 19 changer transitions 5/254 dead transitions. [2024-11-13 15:26:50,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 254 transitions, 1724 flow [2024-11-13 15:26:50,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:50,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:50,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1103 transitions. [2024-11-13 15:26:50,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7643797643797644 [2024-11-13 15:26:50,379 INFO L175 Difference]: Start difference. First operand has 182 places, 247 transitions, 1594 flow. Second operand 13 states and 1103 transitions. [2024-11-13 15:26:50,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 254 transitions, 1724 flow [2024-11-13 15:26:50,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 254 transitions, 1692 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-13 15:26:50,395 INFO L231 Difference]: Finished difference. Result has 187 places, 247 transitions, 1619 flow [2024-11-13 15:26:50,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1566, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1619, PETRI_PLACES=187, PETRI_TRANSITIONS=247} [2024-11-13 15:26:50,395 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 73 predicate places. [2024-11-13 15:26:50,395 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 247 transitions, 1619 flow [2024-11-13 15:26:50,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:50,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:50,396 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:50,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-13 15:26:50,396 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:50,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:50,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2014964764, now seen corresponding path program 37 times [2024-11-13 15:26:50,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:50,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290619296] [2024-11-13 15:26:50,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:50,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:50,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:50,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:50,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290619296] [2024-11-13 15:26:50,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290619296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:50,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:50,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:50,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143808266] [2024-11-13 15:26:50,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:50,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:50,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:50,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:50,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:51,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:51,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 247 transitions, 1619 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:51,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:51,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:51,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:51,917 INFO L124 PetriNetUnfolderBase]: 244/1091 cut-off events. [2024-11-13 15:26:51,917 INFO L125 PetriNetUnfolderBase]: For 1700/1741 co-relation queries the response was YES. [2024-11-13 15:26:51,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3347 conditions, 1091 events. 244/1091 cut-off events. For 1700/1741 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7162 event pairs, 12 based on Foata normal form. 5/1092 useless extension candidates. Maximal degree in co-relation 3304. Up to 187 conditions per place. [2024-11-13 15:26:51,921 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 15 selfloop transitions, 14 changer transitions 8/249 dead transitions. [2024-11-13 15:26:51,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 249 transitions, 1697 flow [2024-11-13 15:26:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1105 transitions. [2024-11-13 15:26:51,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7657657657657657 [2024-11-13 15:26:51,922 INFO L175 Difference]: Start difference. First operand has 187 places, 247 transitions, 1619 flow. Second operand 13 states and 1105 transitions. [2024-11-13 15:26:51,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 249 transitions, 1697 flow [2024-11-13 15:26:51,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 249 transitions, 1638 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-11-13 15:26:51,933 INFO L231 Difference]: Finished difference. Result has 188 places, 241 transitions, 1552 flow [2024-11-13 15:26:51,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1534, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1552, PETRI_PLACES=188, PETRI_TRANSITIONS=241} [2024-11-13 15:26:51,933 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 74 predicate places. [2024-11-13 15:26:51,933 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 241 transitions, 1552 flow [2024-11-13 15:26:51,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:51,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:51,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:51,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-13 15:26:51,934 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:51,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:51,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1371484956, now seen corresponding path program 38 times [2024-11-13 15:26:51,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:51,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74327567] [2024-11-13 15:26:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:51,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:52,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:52,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74327567] [2024-11-13 15:26:52,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74327567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:52,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:52,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:52,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375246615] [2024-11-13 15:26:52,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:52,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:52,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:52,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:52,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 241 transitions, 1552 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:52,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:52,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:52,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:53,302 INFO L124 PetriNetUnfolderBase]: 243/1048 cut-off events. [2024-11-13 15:26:53,302 INFO L125 PetriNetUnfolderBase]: For 1518/1552 co-relation queries the response was YES. [2024-11-13 15:26:53,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3145 conditions, 1048 events. 243/1048 cut-off events. For 1518/1552 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 6788 event pairs, 12 based on Foata normal form. 7/1051 useless extension candidates. Maximal degree in co-relation 3101. Up to 185 conditions per place. [2024-11-13 15:26:53,306 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 11 selfloop transitions, 19 changer transitions 5/247 dead transitions. [2024-11-13 15:26:53,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 247 transitions, 1670 flow [2024-11-13 15:26:53,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1102 transitions. [2024-11-13 15:26:53,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7636867636867637 [2024-11-13 15:26:53,308 INFO L175 Difference]: Start difference. First operand has 188 places, 241 transitions, 1552 flow. Second operand 13 states and 1102 transitions. [2024-11-13 15:26:53,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 247 transitions, 1670 flow [2024-11-13 15:26:53,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 247 transitions, 1602 flow, removed 15 selfloop flow, removed 16 redundant places. [2024-11-13 15:26:53,319 INFO L231 Difference]: Finished difference. Result has 181 places, 241 transitions, 1551 flow [2024-11-13 15:26:53,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1506, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1551, PETRI_PLACES=181, PETRI_TRANSITIONS=241} [2024-11-13 15:26:53,319 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 67 predicate places. [2024-11-13 15:26:53,319 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 241 transitions, 1551 flow [2024-11-13 15:26:53,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:53,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:53,320 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:53,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-13 15:26:53,320 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 15:26:53,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1029413150, now seen corresponding path program 39 times [2024-11-13 15:26:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886520560] [2024-11-13 15:26:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:53,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:26:53,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:53,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886520560] [2024-11-13 15:26:53,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886520560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:53,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:26:53,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:26:53,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270713029] [2024-11-13 15:26:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:53,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:26:53,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:53,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:26:53,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:26:54,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2024-11-13 15:26:54,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 241 transitions, 1551 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:54,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:54,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2024-11-13 15:26:54,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:54,580 INFO L124 PetriNetUnfolderBase]: 0/126 cut-off events. [2024-11-13 15:26:54,581 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-13 15:26:54,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 126 events. 0/126 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 228 event pairs, 0 based on Foata normal form. 2/128 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2024-11-13 15:26:54,581 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2024-11-13 15:26:54,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 90 transitions, 428 flow [2024-11-13 15:26:54,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:26:54,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:26:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1093 transitions. [2024-11-13 15:26:54,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7574497574497574 [2024-11-13 15:26:54,582 INFO L175 Difference]: Start difference. First operand has 181 places, 241 transitions, 1551 flow. Second operand 13 states and 1093 transitions. [2024-11-13 15:26:54,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 90 transitions, 428 flow [2024-11-13 15:26:54,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 90 transitions, 259 flow, removed 31 selfloop flow, removed 52 redundant places. [2024-11-13 15:26:54,584 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2024-11-13 15:26:54,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2024-11-13 15:26:54,585 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 8 predicate places. [2024-11-13 15:26:54,585 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2024-11-13 15:26:54,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:26:54,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2024-11-13 15:26:54,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-13 15:26:54,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-13 15:26:54,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-13 15:26:54,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-13 15:26:54,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-13 15:26:54,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-13 15:26:54,591 INFO L407 BasicCegarLoop]: Path program histogram: [39, 11, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:26:54,596 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:26:54,596 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:26:54,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:26:54 BasicIcfg [2024-11-13 15:26:54,602 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:26:54,603 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:26:54,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:26:54,603 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:26:54,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:25:07" (3/4) ... [2024-11-13 15:26:54,605 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:26:54,608 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-13 15:26:54,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 15:26:54,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 15:26:54,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 15:26:54,706 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:26:54,706 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:26:54,706 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:26:54,707 INFO L158 Benchmark]: Toolchain (without parser) took 108060.17ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 117.1MB in the beginning and 252.8MB in the end (delta: -135.7MB). Peak memory consumption was 195.7MB. Max. memory is 16.1GB. [2024-11-13 15:26:54,707 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:26:54,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.51ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 93.8MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:26:54,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.79ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:26:54,709 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:26:54,709 INFO L158 Benchmark]: RCFGBuilder took 480.70ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 73.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:26:54,710 INFO L158 Benchmark]: TraceAbstraction took 106933.64ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 72.4MB in the beginning and 257.0MB in the end (delta: -184.6MB). Peak memory consumption was 153.8MB. Max. memory is 16.1GB. [2024-11-13 15:26:54,711 INFO L158 Benchmark]: Witness Printer took 103.82ms. Allocated memory is still 478.2MB. Free memory was 257.0MB in the beginning and 252.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:26:54,712 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.51ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 93.8MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.79ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 480.70ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 73.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 106933.64ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 72.4MB in the beginning and 257.0MB in the end (delta: -184.6MB). Peak memory consumption was 153.8MB. Max. memory is 16.1GB. * Witness Printer took 103.82ms. Allocated memory is still 478.2MB. Free memory was 257.0MB in the beginning and 252.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3010]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3011]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 2995]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3013]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3005]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 106.8s, OverallIterations: 57, TraceHistogramMax: 1, PathProgramHistogramMax: 39, EmptinessCheckTime: 0.0s, AutomataDifference: 80.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29133 SdHoareTripleChecker+Valid, 43.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25396 mSDsluCounter, 115040 SdHoareTripleChecker+Invalid, 36.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113458 mSDsCounter, 266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70217 IncrementalHoareTripleChecker+Invalid, 70483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 266 mSolverCounterUnsat, 1582 mSDtfsCounter, 70217 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1160 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 972 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2286occurred in iteration=18, InterpolantAutomatonStates: 686, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 3716 NumberOfCodeBlocks, 3716 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 3659 ConstructedInterpolants, 0 QuantifiedInterpolants, 17877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 15:26:54,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f70cbc0-48f2-489c-aea6-8694c74b9f95/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE