./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya --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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:58:09,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:58:09,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 00:58:09,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:58:09,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:58:09,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:58:09,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:58:09,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:58:09,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:58:09,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:58:09,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:58:09,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:58:09,197 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:58:09,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:58:09,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:58:09,199 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:58:09,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:58:09,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:58:09,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:58:09,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:58:09,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:58:09,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:58:09,203 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 00:58:09,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:58:09,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:58:09,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:58:09,205 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:58:09,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:58:09,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:58:09,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:58:09,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:58:09,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:58:09,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:58:09,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:58:09,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:58:09,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:58:09,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:58:09,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:58:09,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:58:09,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:58:09,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:58:09,210 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2023-11-29 00:58:09,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:58:09,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:58:09,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:58:09,472 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:58:09,473 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:58:09,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2023-11-29 00:58:12,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:58:12,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:58:12,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2023-11-29 00:58:12,721 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/data/d9024bfdb/c10fbc9e6fa94e9b9beb69a62c3f9e11/FLAG8fd4bff53 [2023-11-29 00:58:12,740 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/data/d9024bfdb/c10fbc9e6fa94e9b9beb69a62c3f9e11 [2023-11-29 00:58:12,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:58:12,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:58:12,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:58:12,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:58:12,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:58:12,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:58:12" (1/1) ... [2023-11-29 00:58:12,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee03a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:12, skipping insertion in model container [2023-11-29 00:58:12,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:58:12" (1/1) ... [2023-11-29 00:58:12,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:58:13,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:58:13,224 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:58:13,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:58:13,332 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:58:13,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13 WrapperNode [2023-11-29 00:58:13,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:58:13,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:58:13,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:58:13,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:58:13,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,432 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 937 [2023-11-29 00:58:13,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:58:13,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:58:13,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:58:13,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:58:13,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:58:13,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:58:13,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:58:13,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:58:13,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (1/1) ... [2023-11-29 00:58:13,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:58:13,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:58:13,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:58:13,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:58:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 00:58:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 00:58:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 00:58:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-29 00:58:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-29 00:58:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:58:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 00:58:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:58:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 00:58:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:58:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 00:58:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 00:58:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:58:13,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:58:13,646 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:58:13,837 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:58:13,839 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:58:15,132 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:58:15,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:58:15,184 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 00:58:15,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:58:15 BoogieIcfgContainer [2023-11-29 00:58:15,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:58:15,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:58:15,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:58:15,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:58:15,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:58:12" (1/3) ... [2023-11-29 00:58:15,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b27cff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:58:15, skipping insertion in model container [2023-11-29 00:58:15,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:58:13" (2/3) ... [2023-11-29 00:58:15,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b27cff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:58:15, skipping insertion in model container [2023-11-29 00:58:15,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:58:15" (3/3) ... [2023-11-29 00:58:15,196 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2023-11-29 00:58:15,205 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:58:15,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:58:15,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-29 00:58:15,215 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:58:15,434 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 00:58:15,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1005 places, 1093 transitions, 2193 flow [2023-11-29 00:58:16,211 INFO L124 PetriNetUnfolderBase]: 137/1600 cut-off events. [2023-11-29 00:58:16,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 00:58:16,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1600 events. 137/1600 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5932 event pairs, 0 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 947. Up to 4 conditions per place. [2023-11-29 00:58:16,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 1005 places, 1093 transitions, 2193 flow [2023-11-29 00:58:16,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1005 places, 1093 transitions, 2193 flow [2023-11-29 00:58:16,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:58:16,302 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@141dd95f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:58:16,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2023-11-29 00:58:16,310 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:58:16,310 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2023-11-29 00:58:16,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:58:16,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:58:16,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:58:16,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:58:16,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:58:16,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1414672483, now seen corresponding path program 1 times [2023-11-29 00:58:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:58:16,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427026416] [2023-11-29 00:58:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:58:16,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:58:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:58:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:58:17,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:17,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427026416] [2023-11-29 00:58:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427026416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:58:17,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:58:17,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:58:17,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481353418] [2023-11-29 00:58:17,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:58:17,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:58:17,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:17,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:58:17,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:58:18,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 1093 [2023-11-29 00:58:18,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1005 places, 1093 transitions, 2193 flow. Second operand has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:18,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:58:18,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 1093 [2023-11-29 00:58:18,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:58:32,465 INFO L124 PetriNetUnfolderBase]: 12308/58388 cut-off events. [2023-11-29 00:58:32,466 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 00:58:32,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81005 conditions, 58388 events. 12308/58388 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 679523 event pairs, 11009 based on Foata normal form. 6981/58424 useless extension candidates. Maximal degree in co-relation 80282. Up to 22607 conditions per place. [2023-11-29 00:58:32,780 INFO L140 encePairwiseOnDemand]: 1015/1093 looper letters, 235 selfloop transitions, 5 changer transitions 6/964 dead transitions. [2023-11-29 00:58:32,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 964 transitions, 2415 flow [2023-11-29 00:58:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:58:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:58:32,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4993 transitions. [2023-11-29 00:58:32,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7613601707837755 [2023-11-29 00:58:32,816 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4993 transitions. [2023-11-29 00:58:32,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4993 transitions. [2023-11-29 00:58:32,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:58:32,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4993 transitions. [2023-11-29 00:58:32,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 832.1666666666666) internal successors, (4993), 6 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:32,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:32,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:32,880 INFO L175 Difference]: Start difference. First operand has 1005 places, 1093 transitions, 2193 flow. Second operand 6 states and 4993 transitions. [2023-11-29 00:58:32,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 964 transitions, 2415 flow [2023-11-29 00:58:32,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 953 places, 964 transitions, 2415 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:58:32,920 INFO L231 Difference]: Finished difference. Result has 953 places, 958 transitions, 1933 flow [2023-11-29 00:58:32,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1933, PETRI_PLACES=953, PETRI_TRANSITIONS=958} [2023-11-29 00:58:32,928 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -52 predicate places. [2023-11-29 00:58:32,928 INFO L495 AbstractCegarLoop]: Abstraction has has 953 places, 958 transitions, 1933 flow [2023-11-29 00:58:32,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:32,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:58:32,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:58:32,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:58:32,934 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:58:32,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:58:32,935 INFO L85 PathProgramCache]: Analyzing trace with hash 755806166, now seen corresponding path program 1 times [2023-11-29 00:58:32,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:58:32,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468494053] [2023-11-29 00:58:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:58:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:58:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:58:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:58:33,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468494053] [2023-11-29 00:58:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468494053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:58:33,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:58:33,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:58:33,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621691920] [2023-11-29 00:58:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:58:33,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:58:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:58:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:58:33,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 993 out of 1093 [2023-11-29 00:58:33,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 958 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 994.3333333333334) internal successors, (2983), 3 states have internal predecessors, (2983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:33,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:58:33,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 993 of 1093 [2023-11-29 00:58:33,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:58:34,377 INFO L124 PetriNetUnfolderBase]: 243/4813 cut-off events. [2023-11-29 00:58:34,377 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 00:58:34,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5132 conditions, 4813 events. 243/4813 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 36263 event pairs, 110 based on Foata normal form. 1/4158 useless extension candidates. Maximal degree in co-relation 5043. Up to 302 conditions per place. [2023-11-29 00:58:34,418 INFO L140 encePairwiseOnDemand]: 1090/1093 looper letters, 27 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2023-11-29 00:58:34,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 959 transitions, 1993 flow [2023-11-29 00:58:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:58:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:58:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3009 transitions. [2023-11-29 00:58:34,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9176578225068619 [2023-11-29 00:58:34,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3009 transitions. [2023-11-29 00:58:34,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3009 transitions. [2023-11-29 00:58:34,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:58:34,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3009 transitions. [2023-11-29 00:58:34,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1003.0) internal successors, (3009), 3 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:34,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1093.0) internal successors, (4372), 4 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:34,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1093.0) internal successors, (4372), 4 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:34,461 INFO L175 Difference]: Start difference. First operand has 953 places, 958 transitions, 1933 flow. Second operand 3 states and 3009 transitions. [2023-11-29 00:58:34,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 959 transitions, 1993 flow [2023-11-29 00:58:34,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 959 transitions, 1983 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:58:34,488 INFO L231 Difference]: Finished difference. Result has 945 places, 959 transitions, 1935 flow [2023-11-29 00:58:34,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1935, PETRI_PLACES=945, PETRI_TRANSITIONS=959} [2023-11-29 00:58:34,491 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -60 predicate places. [2023-11-29 00:58:34,491 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 959 transitions, 1935 flow [2023-11-29 00:58:34,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 994.3333333333334) internal successors, (2983), 3 states have internal predecessors, (2983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:34,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:58:34,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:58:34,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:58:34,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:58:34,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:58:34,496 INFO L85 PathProgramCache]: Analyzing trace with hash -52067411, now seen corresponding path program 1 times [2023-11-29 00:58:34,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:58:34,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412372098] [2023-11-29 00:58:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:58:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:58:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:58:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:58:34,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412372098] [2023-11-29 00:58:34,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412372098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:58:34,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:58:34,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:58:34,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117245726] [2023-11-29 00:58:34,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:58:34,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:58:34,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:34,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:58:34,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:58:36,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 1093 [2023-11-29 00:58:36,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 959 transitions, 1935 flow. Second operand has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:36,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:58:36,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 1093 [2023-11-29 00:58:36,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:58:50,466 INFO L124 PetriNetUnfolderBase]: 12308/58409 cut-off events. [2023-11-29 00:58:50,466 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 00:58:50,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81041 conditions, 58409 events. 12308/58409 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 679870 event pairs, 11009 based on Foata normal form. 0/51467 useless extension candidates. Maximal degree in co-relation 80957. Up to 22610 conditions per place. [2023-11-29 00:58:50,712 INFO L140 encePairwiseOnDemand]: 1087/1093 looper letters, 236 selfloop transitions, 5 changer transitions 0/958 dead transitions. [2023-11-29 00:58:50,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 2415 flow [2023-11-29 00:58:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:58:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:58:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4921 transitions. [2023-11-29 00:58:50,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7503812137846905 [2023-11-29 00:58:50,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4921 transitions. [2023-11-29 00:58:50,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4921 transitions. [2023-11-29 00:58:50,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:58:50,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4921 transitions. [2023-11-29 00:58:50,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 820.1666666666666) internal successors, (4921), 6 states have internal predecessors, (4921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,765 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,766 INFO L175 Difference]: Start difference. First operand has 945 places, 959 transitions, 1935 flow. Second operand 6 states and 4921 transitions. [2023-11-29 00:58:50,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 2415 flow [2023-11-29 00:58:50,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 958 transitions, 2413 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 00:58:50,793 INFO L231 Difference]: Finished difference. Result has 948 places, 958 transitions, 1941 flow [2023-11-29 00:58:50,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1941, PETRI_PLACES=948, PETRI_TRANSITIONS=958} [2023-11-29 00:58:50,797 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -57 predicate places. [2023-11-29 00:58:50,797 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 958 transitions, 1941 flow [2023-11-29 00:58:50,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:50,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:58:50,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:58:50,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:58:50,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:58:50,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:58:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash -855045044, now seen corresponding path program 1 times [2023-11-29 00:58:50,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:58:50,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179374268] [2023-11-29 00:58:50,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:58:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:58:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:58:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:58:51,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:51,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179374268] [2023-11-29 00:58:51,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179374268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:58:51,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:58:51,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:58:51,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951544515] [2023-11-29 00:58:51,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:58:51,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:58:51,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:51,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:58:51,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:58:52,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 1093 [2023-11-29 00:58:52,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 958 transitions, 1941 flow. Second operand has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:58:52,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:58:52,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 1093 [2023-11-29 00:58:52,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:05,653 INFO L124 PetriNetUnfolderBase]: 12308/58407 cut-off events. [2023-11-29 00:59:05,653 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 00:59:05,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81048 conditions, 58407 events. 12308/58407 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 679279 event pairs, 11009 based on Foata normal form. 0/51467 useless extension candidates. Maximal degree in co-relation 80950. Up to 22610 conditions per place. [2023-11-29 00:59:05,866 INFO L140 encePairwiseOnDemand]: 1087/1093 looper letters, 236 selfloop transitions, 5 changer transitions 0/957 dead transitions. [2023-11-29 00:59:05,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 957 transitions, 2421 flow [2023-11-29 00:59:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:59:05,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:59:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4921 transitions. [2023-11-29 00:59:05,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7503812137846905 [2023-11-29 00:59:05,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4921 transitions. [2023-11-29 00:59:05,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4921 transitions. [2023-11-29 00:59:05,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:05,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4921 transitions. [2023-11-29 00:59:05,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 820.1666666666666) internal successors, (4921), 6 states have internal predecessors, (4921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:05,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:05,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:05,925 INFO L175 Difference]: Start difference. First operand has 948 places, 958 transitions, 1941 flow. Second operand 6 states and 4921 transitions. [2023-11-29 00:59:05,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 957 transitions, 2421 flow [2023-11-29 00:59:05,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 957 transitions, 2411 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:59:05,950 INFO L231 Difference]: Finished difference. Result has 947 places, 957 transitions, 1939 flow [2023-11-29 00:59:05,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1939, PETRI_PLACES=947, PETRI_TRANSITIONS=957} [2023-11-29 00:59:05,953 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -58 predicate places. [2023-11-29 00:59:05,953 INFO L495 AbstractCegarLoop]: Abstraction has has 947 places, 957 transitions, 1939 flow [2023-11-29 00:59:05,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:05,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:05,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:05,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:59:05,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:59:05,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:05,957 INFO L85 PathProgramCache]: Analyzing trace with hash 364461159, now seen corresponding path program 1 times [2023-11-29 00:59:05,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:05,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056183085] [2023-11-29 00:59:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:05,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:59:06,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:06,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056183085] [2023-11-29 00:59:06,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056183085] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:59:06,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612012995] [2023-11-29 00:59:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:06,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:59:06,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:59:06,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:59:06,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:59:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:06,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:59:06,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:59:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:59:06,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:59:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:59:06,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612012995] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:59:06,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:59:06,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-29 00:59:06,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322713532] [2023-11-29 00:59:06,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:59:06,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:59:06,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:06,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:59:06,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:59:06,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1093 [2023-11-29 00:59:06,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 957 transitions, 1939 flow. Second operand has 6 states, 6 states have (on average 994.1666666666666) internal successors, (5965), 6 states have internal predecessors, (5965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:06,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:06,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1093 [2023-11-29 00:59:06,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:07,802 INFO L124 PetriNetUnfolderBase]: 243/4839 cut-off events. [2023-11-29 00:59:07,802 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-29 00:59:07,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5174 conditions, 4839 events. 243/4839 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 36151 event pairs, 110 based on Foata normal form. 2/4189 useless extension candidates. Maximal degree in co-relation 5026. Up to 301 conditions per place. [2023-11-29 00:59:07,845 INFO L140 encePairwiseOnDemand]: 1089/1093 looper letters, 29 selfloop transitions, 5 changer transitions 0/961 dead transitions. [2023-11-29 00:59:07,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 961 transitions, 2017 flow [2023-11-29 00:59:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:59:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 00:59:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4996 transitions. [2023-11-29 00:59:07,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.914181152790485 [2023-11-29 00:59:07,862 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4996 transitions. [2023-11-29 00:59:07,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4996 transitions. [2023-11-29 00:59:07,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:07,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4996 transitions. [2023-11-29 00:59:07,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 999.2) internal successors, (4996), 5 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:07,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1093.0) internal successors, (6558), 6 states have internal predecessors, (6558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:07,893 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1093.0) internal successors, (6558), 6 states have internal predecessors, (6558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:07,893 INFO L175 Difference]: Start difference. First operand has 947 places, 957 transitions, 1939 flow. Second operand 5 states and 4996 transitions. [2023-11-29 00:59:07,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 961 transitions, 2017 flow [2023-11-29 00:59:07,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 961 transitions, 2007 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:59:07,916 INFO L231 Difference]: Finished difference. Result has 949 places, 959 transitions, 1959 flow [2023-11-29 00:59:07,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1959, PETRI_PLACES=949, PETRI_TRANSITIONS=959} [2023-11-29 00:59:07,919 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -56 predicate places. [2023-11-29 00:59:07,919 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 959 transitions, 1959 flow [2023-11-29 00:59:07,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 994.1666666666666) internal successors, (5965), 6 states have internal predecessors, (5965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:07,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:07,922 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:07,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:59:08,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2330f9e6-3f2f-46dd-a135-a706ce80576b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:59:08,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:59:08,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash -837952759, now seen corresponding path program 2 times [2023-11-29 00:59:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:08,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241727634] [2023-11-29 00:59:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:08,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-29 00:59:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:09,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241727634] [2023-11-29 00:59:09,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241727634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:09,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:09,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:59:09,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906186126] [2023-11-29 00:59:09,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:09,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:59:09,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:09,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:59:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:59:10,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 777 out of 1093 [2023-11-29 00:59:10,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 959 transitions, 1959 flow. Second operand has 6 states, 6 states have (on average 780.3333333333334) internal successors, (4682), 6 states have internal predecessors, (4682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:10,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:10,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 777 of 1093 [2023-11-29 00:59:10,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:24,025 INFO L124 PetriNetUnfolderBase]: 12098/58163 cut-off events. [2023-11-29 00:59:24,025 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-29 00:59:24,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80415 conditions, 58163 events. 12098/58163 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 677578 event pairs, 10807 based on Foata normal form. 0/51244 useless extension candidates. Maximal degree in co-relation 80235. Up to 22214 conditions per place. [2023-11-29 00:59:24,297 INFO L140 encePairwiseOnDemand]: 1081/1093 looper letters, 232 selfloop transitions, 10 changer transitions 0/957 dead transitions. [2023-11-29 00:59:24,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 957 transitions, 2439 flow [2023-11-29 00:59:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:59:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:59:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4906 transitions. [2023-11-29 00:59:24,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7480939310765478 [2023-11-29 00:59:24,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4906 transitions. [2023-11-29 00:59:24,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4906 transitions. [2023-11-29 00:59:24,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:24,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4906 transitions. [2023-11-29 00:59:24,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 817.6666666666666) internal successors, (4906), 6 states have internal predecessors, (4906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:24,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:24,341 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:24,341 INFO L175 Difference]: Start difference. First operand has 949 places, 959 transitions, 1959 flow. Second operand 6 states and 4906 transitions. [2023-11-29 00:59:24,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 957 transitions, 2439 flow [2023-11-29 00:59:24,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 957 transitions, 2433 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 00:59:24,366 INFO L231 Difference]: Finished difference. Result has 951 places, 957 transitions, 1969 flow [2023-11-29 00:59:24,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=947, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1969, PETRI_PLACES=951, PETRI_TRANSITIONS=957} [2023-11-29 00:59:24,368 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -54 predicate places. [2023-11-29 00:59:24,369 INFO L495 AbstractCegarLoop]: Abstraction has has 951 places, 957 transitions, 1969 flow [2023-11-29 00:59:24,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 780.3333333333334) internal successors, (4682), 6 states have internal predecessors, (4682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:24,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:24,371 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:24,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:59:24,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:59:24,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash 261610054, now seen corresponding path program 1 times [2023-11-29 00:59:24,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:24,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584100423] [2023-11-29 00:59:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-29 00:59:25,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:25,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584100423] [2023-11-29 00:59:25,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584100423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:25,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:25,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:59:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865707782] [2023-11-29 00:59:25,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:25,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:59:25,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:25,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:59:25,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:59:26,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 777 out of 1093 [2023-11-29 00:59:26,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 957 transitions, 1969 flow. Second operand has 6 states, 6 states have (on average 780.3333333333334) internal successors, (4682), 6 states have internal predecessors, (4682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:26,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:26,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 777 of 1093 [2023-11-29 00:59:26,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:41,077 INFO L124 PetriNetUnfolderBase]: 12098/58161 cut-off events. [2023-11-29 00:59:41,077 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-29 00:59:41,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80421 conditions, 58161 events. 12098/58161 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 677288 event pairs, 10807 based on Foata normal form. 0/51244 useless extension candidates. Maximal degree in co-relation 80243. Up to 22214 conditions per place. [2023-11-29 00:59:41,331 INFO L140 encePairwiseOnDemand]: 1081/1093 looper letters, 232 selfloop transitions, 10 changer transitions 0/955 dead transitions. [2023-11-29 00:59:41,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 954 places, 955 transitions, 2449 flow [2023-11-29 00:59:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:59:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:59:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4906 transitions. [2023-11-29 00:59:41,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7480939310765478 [2023-11-29 00:59:41,344 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4906 transitions. [2023-11-29 00:59:41,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4906 transitions. [2023-11-29 00:59:41,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:41,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4906 transitions. [2023-11-29 00:59:41,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 817.6666666666666) internal successors, (4906), 6 states have internal predecessors, (4906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:41,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:41,368 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:41,368 INFO L175 Difference]: Start difference. First operand has 951 places, 957 transitions, 1969 flow. Second operand 6 states and 4906 transitions. [2023-11-29 00:59:41,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 954 places, 955 transitions, 2449 flow [2023-11-29 00:59:41,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 949 places, 955 transitions, 2429 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:59:41,388 INFO L231 Difference]: Finished difference. Result has 949 places, 955 transitions, 1965 flow [2023-11-29 00:59:41,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=944, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1965, PETRI_PLACES=949, PETRI_TRANSITIONS=955} [2023-11-29 00:59:41,390 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -56 predicate places. [2023-11-29 00:59:41,390 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 955 transitions, 1965 flow [2023-11-29 00:59:41,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 780.3333333333334) internal successors, (4682), 6 states have internal predecessors, (4682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:41,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:41,391 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:41,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:59:41,392 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:59:41,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:41,392 INFO L85 PathProgramCache]: Analyzing trace with hash -896292304, now seen corresponding path program 1 times [2023-11-29 00:59:41,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:41,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187965518] [2023-11-29 00:59:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:41,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-29 00:59:42,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:42,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187965518] [2023-11-29 00:59:42,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187965518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:42,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:42,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:59:42,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833968520] [2023-11-29 00:59:42,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:42,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:59:42,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:42,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:59:42,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:59:44,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 938 out of 1093 [2023-11-29 00:59:44,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 955 transitions, 1965 flow. Second operand has 6 states, 6 states have (on average 943.8333333333334) internal successors, (5663), 6 states have internal predecessors, (5663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:44,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:44,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 938 of 1093 [2023-11-29 00:59:44,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:48,105 INFO L124 PetriNetUnfolderBase]: 1169/14839 cut-off events. [2023-11-29 00:59:48,105 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-29 00:59:48,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16667 conditions, 14839 events. 1169/14839 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 146682 event pairs, 562 based on Foata normal form. 0/12763 useless extension candidates. Maximal degree in co-relation 16489. Up to 1599 conditions per place. [2023-11-29 00:59:48,183 INFO L140 encePairwiseOnDemand]: 1073/1093 looper letters, 122 selfloop transitions, 58 changer transitions 0/1052 dead transitions. [2023-11-29 00:59:48,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 954 places, 1052 transitions, 2519 flow [2023-11-29 00:59:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:59:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:59:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5809 transitions. [2023-11-29 00:59:48,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8857883501067398 [2023-11-29 00:59:48,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5809 transitions. [2023-11-29 00:59:48,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5809 transitions. [2023-11-29 00:59:48,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:48,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5809 transitions. [2023-11-29 00:59:48,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 968.1666666666666) internal successors, (5809), 6 states have internal predecessors, (5809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:48,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:48,214 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:48,214 INFO L175 Difference]: Start difference. First operand has 949 places, 955 transitions, 1965 flow. Second operand 6 states and 5809 transitions. [2023-11-29 00:59:48,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 954 places, 1052 transitions, 2519 flow [2023-11-29 00:59:48,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 949 places, 1052 transitions, 2499 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:59:48,232 INFO L231 Difference]: Finished difference. Result has 954 places, 1012 transitions, 2329 flow [2023-11-29 00:59:48,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=944, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2329, PETRI_PLACES=954, PETRI_TRANSITIONS=1012} [2023-11-29 00:59:48,235 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -51 predicate places. [2023-11-29 00:59:48,235 INFO L495 AbstractCegarLoop]: Abstraction has has 954 places, 1012 transitions, 2329 flow [2023-11-29 00:59:48,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 943.8333333333334) internal successors, (5663), 6 states have internal predecessors, (5663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:48,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:48,236 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:59:48,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:59:48,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:48,236 INFO L85 PathProgramCache]: Analyzing trace with hash -12046141, now seen corresponding path program 1 times [2023-11-29 00:59:48,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:48,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085298286] [2023-11-29 00:59:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-29 00:59:48,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:48,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085298286] [2023-11-29 00:59:48,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085298286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:48,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:48,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:59:48,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647776812] [2023-11-29 00:59:48,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:48,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:59:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:48,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:59:48,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:59:48,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 993 out of 1093 [2023-11-29 00:59:48,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 1012 transitions, 2329 flow. Second operand has 3 states, 3 states have (on average 994.3333333333334) internal successors, (2983), 3 states have internal predecessors, (2983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:48,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:48,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 993 of 1093 [2023-11-29 00:59:48,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:59:50,577 INFO L124 PetriNetUnfolderBase]: 482/8877 cut-off events. [2023-11-29 00:59:50,577 INFO L125 PetriNetUnfolderBase]: For 110/142 co-relation queries the response was YES. [2023-11-29 00:59:50,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9863 conditions, 8877 events. 482/8877 cut-off events. For 110/142 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 76409 event pairs, 159 based on Foata normal form. 1/7665 useless extension candidates. Maximal degree in co-relation 9716. Up to 449 conditions per place. [2023-11-29 00:59:50,628 INFO L140 encePairwiseOnDemand]: 1090/1093 looper letters, 36 selfloop transitions, 2 changer transitions 0/1022 dead transitions. [2023-11-29 00:59:50,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 1022 transitions, 2425 flow [2023-11-29 00:59:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:59:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:59:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3018 transitions. [2023-11-29 00:59:50,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9204025617566332 [2023-11-29 00:59:50,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3018 transitions. [2023-11-29 00:59:50,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3018 transitions. [2023-11-29 00:59:50,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:59:50,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3018 transitions. [2023-11-29 00:59:50,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.0) internal successors, (3018), 3 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:50,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1093.0) internal successors, (4372), 4 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:50,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1093.0) internal successors, (4372), 4 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:50,644 INFO L175 Difference]: Start difference. First operand has 954 places, 1012 transitions, 2329 flow. Second operand 3 states and 3018 transitions. [2023-11-29 00:59:50,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 1022 transitions, 2425 flow [2023-11-29 00:59:50,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 1022 transitions, 2425 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:59:50,664 INFO L231 Difference]: Finished difference. Result has 957 places, 1012 transitions, 2337 flow [2023-11-29 00:59:50,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=2329, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1012, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2337, PETRI_PLACES=957, PETRI_TRANSITIONS=1012} [2023-11-29 00:59:50,666 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -48 predicate places. [2023-11-29 00:59:50,667 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 1012 transitions, 2337 flow [2023-11-29 00:59:50,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 994.3333333333334) internal successors, (2983), 3 states have internal predecessors, (2983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:50,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:50,667 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:50,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:59:50,668 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-29 00:59:50,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:50,668 INFO L85 PathProgramCache]: Analyzing trace with hash 550622152, now seen corresponding path program 1 times [2023-11-29 00:59:50,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:50,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408718346] [2023-11-29 00:59:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:50,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:59:50,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:59:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:59:50,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:59:50,895 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:59:50,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (112 of 113 remaining) [2023-11-29 00:59:50,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (111 of 113 remaining) [2023-11-29 00:59:50,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (110 of 113 remaining) [2023-11-29 00:59:50,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (109 of 113 remaining) [2023-11-29 00:59:50,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (108 of 113 remaining) [2023-11-29 00:59:50,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (107 of 113 remaining) [2023-11-29 00:59:50,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (106 of 113 remaining) [2023-11-29 00:59:50,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (105 of 113 remaining) [2023-11-29 00:59:50,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (104 of 113 remaining) [2023-11-29 00:59:50,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (103 of 113 remaining) [2023-11-29 00:59:50,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (102 of 113 remaining) [2023-11-29 00:59:50,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (101 of 113 remaining) [2023-11-29 00:59:50,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (100 of 113 remaining) [2023-11-29 00:59:50,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (99 of 113 remaining) [2023-11-29 00:59:50,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (98 of 113 remaining) [2023-11-29 00:59:50,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (97 of 113 remaining) [2023-11-29 00:59:50,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (96 of 113 remaining) [2023-11-29 00:59:50,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (95 of 113 remaining) [2023-11-29 00:59:50,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (94 of 113 remaining) [2023-11-29 00:59:50,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (93 of 113 remaining) [2023-11-29 00:59:50,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (92 of 113 remaining) [2023-11-29 00:59:50,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (91 of 113 remaining) [2023-11-29 00:59:50,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (90 of 113 remaining) [2023-11-29 00:59:50,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (89 of 113 remaining) [2023-11-29 00:59:50,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (88 of 113 remaining) [2023-11-29 00:59:50,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (87 of 113 remaining) [2023-11-29 00:59:50,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (86 of 113 remaining) [2023-11-29 00:59:50,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (85 of 113 remaining) [2023-11-29 00:59:50,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (84 of 113 remaining) [2023-11-29 00:59:50,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (83 of 113 remaining) [2023-11-29 00:59:50,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (82 of 113 remaining) [2023-11-29 00:59:50,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (81 of 113 remaining) [2023-11-29 00:59:50,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (80 of 113 remaining) [2023-11-29 00:59:50,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (79 of 113 remaining) [2023-11-29 00:59:50,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (78 of 113 remaining) [2023-11-29 00:59:50,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (77 of 113 remaining) [2023-11-29 00:59:50,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (76 of 113 remaining) [2023-11-29 00:59:50,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (75 of 113 remaining) [2023-11-29 00:59:50,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (74 of 113 remaining) [2023-11-29 00:59:50,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (73 of 113 remaining) [2023-11-29 00:59:50,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (72 of 113 remaining) [2023-11-29 00:59:50,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (71 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (70 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE (69 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (68 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (67 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (66 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (65 of 113 remaining) [2023-11-29 00:59:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (64 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (63 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (62 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (61 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (60 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (59 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (58 of 113 remaining) [2023-11-29 00:59:50,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (57 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (56 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (55 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (54 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (53 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (52 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (51 of 113 remaining) [2023-11-29 00:59:50,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (50 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (49 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (48 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (47 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (46 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (45 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (44 of 113 remaining) [2023-11-29 00:59:50,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (43 of 113 remaining) [2023-11-29 00:59:50,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (42 of 113 remaining) [2023-11-29 00:59:50,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (41 of 113 remaining) [2023-11-29 00:59:50,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (40 of 113 remaining) [2023-11-29 00:59:50,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (39 of 113 remaining) [2023-11-29 00:59:50,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (38 of 113 remaining) [2023-11-29 00:59:50,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (37 of 113 remaining) [2023-11-29 00:59:50,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (36 of 113 remaining) [2023-11-29 00:59:50,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (35 of 113 remaining) [2023-11-29 00:59:50,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (34 of 113 remaining) [2023-11-29 00:59:50,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (33 of 113 remaining) [2023-11-29 00:59:50,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (32 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (31 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (30 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (29 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (28 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (27 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (26 of 113 remaining) [2023-11-29 00:59:50,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (25 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (24 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (23 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (22 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (21 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (20 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (19 of 113 remaining) [2023-11-29 00:59:50,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (18 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (17 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (16 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (15 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (14 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (13 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (12 of 113 remaining) [2023-11-29 00:59:50,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (11 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (10 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (9 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (8 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (7 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (6 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (5 of 113 remaining) [2023-11-29 00:59:50,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (4 of 113 remaining) [2023-11-29 00:59:50,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (3 of 113 remaining) [2023-11-29 00:59:50,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (2 of 113 remaining) [2023-11-29 00:59:50,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (1 of 113 remaining) [2023-11-29 00:59:50,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (0 of 113 remaining) [2023-11-29 00:59:50,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:59:50,919 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:50,921 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 00:59:50,922 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 00:59:51,128 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 00:59:51,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1405 places, 1530 transitions, 3076 flow [2023-11-29 00:59:52,655 INFO L124 PetriNetUnfolderBase]: 230/2617 cut-off events. [2023-11-29 00:59:52,655 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 00:59:52,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2629 conditions, 2617 events. 230/2617 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 12924 event pairs, 0 based on Foata normal form. 0/2194 useless extension candidates. Maximal degree in co-relation 1602. Up to 8 conditions per place. [2023-11-29 00:59:52,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 1405 places, 1530 transitions, 3076 flow [2023-11-29 00:59:52,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1405 places, 1530 transitions, 3076 flow [2023-11-29 00:59:52,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:59:52,774 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@141dd95f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:59:52,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2023-11-29 00:59:52,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:59:52,778 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2023-11-29 00:59:52,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:59:52,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:59:52,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:52,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-11-29 00:59:52,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1635842537, now seen corresponding path program 1 times [2023-11-29 00:59:52,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:52,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560771257] [2023-11-29 00:59:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:59:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:59:52,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:52,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560771257] [2023-11-29 00:59:52,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560771257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:59:52,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:59:52,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:59:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424539490] [2023-11-29 00:59:52,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:59:52,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:59:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:59:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:59:54,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1084 out of 1530 [2023-11-29 00:59:54,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1405 places, 1530 transitions, 3076 flow. Second operand has 6 states, 6 states have (on average 1085.5) internal successors, (6513), 6 states have internal predecessors, (6513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:59:54,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:59:54,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1084 of 1530 [2023-11-29 00:59:54,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand