./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.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_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/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_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/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_e409779b-35f3-467c-ad36-2600b5d7e067/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 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:01:52,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:01:52,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 01:01:52,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:01:52,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:01:52,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:01:52,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:01:52,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:01:52,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:01:52,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:01:52,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:01:52,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:01:52,182 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:01:52,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:01:52,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:01:52,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:01:52,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:01:52,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:01:52,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:01:52,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:01:52,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:01:52,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:01:52,187 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 01:01:52,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:01:52,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:01:52,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:01:52,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:01:52,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:01:52,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:01:52,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:01:52,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:01:52,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:01:52,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:01:52,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:01:52,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:01:52,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:01:52,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:01:52,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:01:52,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:01:52,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:01:52,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:01:52,194 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_e409779b-35f3-467c-ad36-2600b5d7e067/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2023-11-29 01:01:52,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:01:52,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:01:52,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:01:52,446 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:01:52,446 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:01:52,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2023-11-29 01:01:55,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:01:55,511 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:01:55,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2023-11-29 01:01:55,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/data/74cfeed8c/0faf47aff13742eb91aa1345a8834217/FLAG6c5fcaee5 [2023-11-29 01:01:55,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/data/74cfeed8c/0faf47aff13742eb91aa1345a8834217 [2023-11-29 01:01:55,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:01:55,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:01:55,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:01:55,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:01:55,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:01:55,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:01:55" (1/1) ... [2023-11-29 01:01:55,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154ca9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:55, skipping insertion in model container [2023-11-29 01:01:55,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:01:55" (1/1) ... [2023-11-29 01:01:55,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:01:56,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:01:56,027 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:01:56,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:01:56,145 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:01:56,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56 WrapperNode [2023-11-29 01:01:56,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:01:56,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:01:56,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:01:56,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:01:56,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,202 INFO L138 Inliner]: procedures = 269, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-11-29 01:01:56,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:01:56,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:01:56,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:01:56,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:01:56,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:01:56,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:01:56,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:01:56,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:01:56,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (1/1) ... [2023-11-29 01:01:56,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:01:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:01:56,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:01:56,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:01:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:01:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 01:01:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:01:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-29 01:01:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 01:01:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-29 01:01:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-29 01:01:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:01:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:01:56,307 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 01:01:56,432 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:01:56,433 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:01:56,649 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:01:56,668 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:01:56,668 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:01:56,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:01:56 BoogieIcfgContainer [2023-11-29 01:01:56,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:01:56,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:01:56,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:01:56,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:01:56,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:01:55" (1/3) ... [2023-11-29 01:01:56,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661b31a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:01:56, skipping insertion in model container [2023-11-29 01:01:56,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:56" (2/3) ... [2023-11-29 01:01:56,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661b31a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:01:56, skipping insertion in model container [2023-11-29 01:01:56,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:01:56" (3/3) ... [2023-11-29 01:01:56,678 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2023-11-29 01:01:56,684 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:01:56,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:01:56,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 01:01:56,692 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:01:56,738 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 01:01:56,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 223 flow [2023-11-29 01:01:56,820 INFO L124 PetriNetUnfolderBase]: 6/159 cut-off events. [2023-11-29 01:01:56,821 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 01:01:56,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 159 events. 6/159 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-11-29 01:01:56,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 223 flow [2023-11-29 01:01:56,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 108 transitions, 223 flow [2023-11-29 01:01:56,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:01:56,849 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;@226a6e5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:01:56,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 01:01:56,862 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:01:56,862 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 01:01:56,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:01:56,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:56,863 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] [2023-11-29 01:01:56,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 01:01:56,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2033798269, now seen corresponding path program 1 times [2023-11-29 01:01:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:56,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609603853] [2023-11-29 01:01:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:56,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:57,611 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 01:01:57,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:57,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609603853] [2023-11-29 01:01:57,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609603853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:57,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:57,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:01:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878259106] [2023-11-29 01:01:57,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:57,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:01:57,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:57,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:01:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:01:57,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2023-11-29 01:01:57,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 108 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 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 01:01:57,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:57,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2023-11-29 01:01:57,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:58,013 INFO L124 PetriNetUnfolderBase]: 36/304 cut-off events. [2023-11-29 01:01:58,013 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 01:01:58,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 304 events. 36/304 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1229 event pairs, 30 based on Foata normal form. 8/279 useless extension candidates. Maximal degree in co-relation 296. Up to 93 conditions per place. [2023-11-29 01:01:58,017 INFO L140 encePairwiseOnDemand]: 89/108 looper letters, 23 selfloop transitions, 13 changer transitions 2/116 dead transitions. [2023-11-29 01:01:58,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 116 transitions, 313 flow [2023-11-29 01:01:58,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:01:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:01:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2023-11-29 01:01:58,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8009259259259259 [2023-11-29 01:01:58,035 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2023-11-29 01:01:58,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2023-11-29 01:01:58,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:58,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2023-11-29 01:01:58,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 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 01:01:58,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 01:01:58,054 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 01:01:58,056 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 223 flow. Second operand 6 states and 519 transitions. [2023-11-29 01:01:58,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 116 transitions, 313 flow [2023-11-29 01:01:58,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 116 transitions, 313 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:01:58,065 INFO L231 Difference]: Finished difference. Result has 113 places, 113 transitions, 305 flow [2023-11-29 01:01:58,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2023-11-29 01:01:58,071 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2023-11-29 01:01:58,071 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 305 flow [2023-11-29 01:01:58,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 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 01:01:58,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:58,072 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] [2023-11-29 01:01:58,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:01:58,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 01:01:58,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:58,073 INFO L85 PathProgramCache]: Analyzing trace with hash -918803626, now seen corresponding path program 1 times [2023-11-29 01:01:58,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:58,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409896813] [2023-11-29 01:01:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:58,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:58,123 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 01:01:58,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409896813] [2023-11-29 01:01:58,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409896813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:58,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:58,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:01:58,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503384463] [2023-11-29 01:01:58,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:58,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:01:58,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:58,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:01:58,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:01:58,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 108 [2023-11-29 01:01:58,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 01:01:58,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:58,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 108 [2023-11-29 01:01:58,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:58,186 INFO L124 PetriNetUnfolderBase]: 9/209 cut-off events. [2023-11-29 01:01:58,186 INFO L125 PetriNetUnfolderBase]: For 15/18 co-relation queries the response was YES. [2023-11-29 01:01:58,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 209 events. 9/209 cut-off events. For 15/18 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 532 event pairs, 1 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 172. Up to 16 conditions per place. [2023-11-29 01:01:58,188 INFO L140 encePairwiseOnDemand]: 104/108 looper letters, 8 selfloop transitions, 3 changer transitions 5/117 dead transitions. [2023-11-29 01:01:58,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 117 transitions, 337 flow [2023-11-29 01:01:58,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:01:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:01:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-11-29 01:01:58,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9382716049382716 [2023-11-29 01:01:58,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-11-29 01:01:58,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-11-29 01:01:58,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:58,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-11-29 01:01:58,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 01:01:58,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 01:01:58,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 01:01:58,194 INFO L175 Difference]: Start difference. First operand has 113 places, 113 transitions, 305 flow. Second operand 3 states and 304 transitions. [2023-11-29 01:01:58,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 117 transitions, 337 flow [2023-11-29 01:01:58,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:01:58,200 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 301 flow [2023-11-29 01:01:58,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2023-11-29 01:01:58,201 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2023-11-29 01:01:58,202 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 301 flow [2023-11-29 01:01:58,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 01:01:58,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:58,202 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] [2023-11-29 01:01:58,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:01:58,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 01:01:58,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash 351144525, now seen corresponding path program 1 times [2023-11-29 01:01:58,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:58,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145026471] [2023-11-29 01:01:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:58,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:58,335 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 01:01:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145026471] [2023-11-29 01:01:58,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145026471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:58,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:58,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:01:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267828440] [2023-11-29 01:01:58,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:58,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:01:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:01:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:01:58,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 108 [2023-11-29 01:01:58,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 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 01:01:58,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:58,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 108 [2023-11-29 01:01:58,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:58,478 INFO L124 PetriNetUnfolderBase]: 16/289 cut-off events. [2023-11-29 01:01:58,478 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-29 01:01:58,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 289 events. 16/289 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1047 event pairs, 1 based on Foata normal form. 1/277 useless extension candidates. Maximal degree in co-relation 323. Up to 48 conditions per place. [2023-11-29 01:01:58,481 INFO L140 encePairwiseOnDemand]: 101/108 looper letters, 15 selfloop transitions, 2 changer transitions 4/113 dead transitions. [2023-11-29 01:01:58,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 113 transitions, 333 flow [2023-11-29 01:01:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:01:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:01:58,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2023-11-29 01:01:58,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8672839506172839 [2023-11-29 01:01:58,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2023-11-29 01:01:58,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2023-11-29 01:01:58,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:58,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2023-11-29 01:01:58,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 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 01:01:58,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 01:01:58,491 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 01:01:58,491 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 301 flow. Second operand 6 states and 562 transitions. [2023-11-29 01:01:58,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 113 transitions, 333 flow [2023-11-29 01:01:58,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 313 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 01:01:58,497 INFO L231 Difference]: Finished difference. Result has 122 places, 107 transitions, 275 flow [2023-11-29 01:01:58,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=122, PETRI_TRANSITIONS=107} [2023-11-29 01:01:58,498 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 15 predicate places. [2023-11-29 01:01:58,499 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 107 transitions, 275 flow [2023-11-29 01:01:58,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 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 01:01:58,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:58,500 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] [2023-11-29 01:01:58,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:01:58,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 01:01:58,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:58,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1101997642, now seen corresponding path program 1 times [2023-11-29 01:01:58,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:58,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043017613] [2023-11-29 01:01:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:58,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:58,549 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 01:01:58,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:58,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043017613] [2023-11-29 01:01:58,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043017613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:58,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:58,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:01:58,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666302669] [2023-11-29 01:01:58,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:58,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:01:58,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:01:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:01:58,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 108 [2023-11-29 01:01:58,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 107 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 01:01:58,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:58,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 108 [2023-11-29 01:01:58,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:58,607 INFO L124 PetriNetUnfolderBase]: 5/207 cut-off events. [2023-11-29 01:01:58,607 INFO L125 PetriNetUnfolderBase]: For 20/33 co-relation queries the response was YES. [2023-11-29 01:01:58,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 207 events. 5/207 cut-off events. For 20/33 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 547 event pairs, 3 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 241. Up to 25 conditions per place. [2023-11-29 01:01:58,609 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 8 selfloop transitions, 4 changer transitions 3/110 dead transitions. [2023-11-29 01:01:58,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 110 transitions, 311 flow [2023-11-29 01:01:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:01:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:01:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2023-11-29 01:01:58,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9228395061728395 [2023-11-29 01:01:58,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2023-11-29 01:01:58,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2023-11-29 01:01:58,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:58,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2023-11-29 01:01:58,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 01:01:58,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 01:01:58,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 01:01:58,615 INFO L175 Difference]: Start difference. First operand has 122 places, 107 transitions, 275 flow. Second operand 3 states and 299 transitions. [2023-11-29 01:01:58,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 110 transitions, 311 flow [2023-11-29 01:01:58,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 110 transitions, 297 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-29 01:01:58,619 INFO L231 Difference]: Finished difference. Result has 118 places, 107 transitions, 283 flow [2023-11-29 01:01:58,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=118, PETRI_TRANSITIONS=107} [2023-11-29 01:01:58,621 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2023-11-29 01:01:58,621 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 107 transitions, 283 flow [2023-11-29 01:01:58,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 01:01:58,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:58,622 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:58,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:01:58,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 01:01:58,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:58,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1120758050, now seen corresponding path program 1 times [2023-11-29 01:01:58,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:58,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453776523] [2023-11-29 01:01:58,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:58,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:01:58,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:01:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:01:58,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:01:58,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:01:58,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-11-29 01:01:58,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-29 01:01:58,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-29 01:01:58,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-29 01:01:58,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-11-29 01:01:58,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-29 01:01:58,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-29 01:01:58,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-29 01:01:58,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:01:58,706 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 01:01:58,709 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:01:58,709 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 01:01:58,733 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 01:01:58,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 126 transitions, 268 flow [2023-11-29 01:01:58,781 INFO L124 PetriNetUnfolderBase]: 11/278 cut-off events. [2023-11-29 01:01:58,781 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 01:01:58,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 278 events. 11/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 669 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 161. Up to 8 conditions per place. [2023-11-29 01:01:58,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 126 transitions, 268 flow [2023-11-29 01:01:58,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 126 transitions, 268 flow [2023-11-29 01:01:58,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:01:58,788 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;@226a6e5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:01:58,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-29 01:01:58,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:01:58,795 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 01:01:58,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:01:58,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:58,795 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] [2023-11-29 01:01:58,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:01:58,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash -876152835, now seen corresponding path program 1 times [2023-11-29 01:01:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596949312] [2023-11-29 01:01:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:58,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:59,120 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 01:01:59,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:59,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596949312] [2023-11-29 01:01:59,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596949312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:59,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:59,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:01:59,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253455556] [2023-11-29 01:01:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:59,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:01:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:59,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:01:59,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:01:59,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 126 [2023-11-29 01:01:59,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 126 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 0 states have call successors, (0), 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 01:01:59,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:59,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 126 [2023-11-29 01:01:59,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:59,628 INFO L124 PetriNetUnfolderBase]: 280/1685 cut-off events. [2023-11-29 01:01:59,628 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-29 01:01:59,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 1685 events. 280/1685 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13206 event pairs, 240 based on Foata normal form. 24/1578 useless extension candidates. Maximal degree in co-relation 729. Up to 488 conditions per place. [2023-11-29 01:01:59,640 INFO L140 encePairwiseOnDemand]: 107/126 looper letters, 30 selfloop transitions, 13 changer transitions 1/136 dead transitions. [2023-11-29 01:01:59,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 374 flow [2023-11-29 01:01:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:01:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:01:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2023-11-29 01:01:59,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2023-11-29 01:01:59,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 609 transitions. [2023-11-29 01:01:59,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 609 transitions. [2023-11-29 01:01:59,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:59,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 609 transitions. [2023-11-29 01:01:59,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 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 01:01:59,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 01:01:59,649 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 01:01:59,649 INFO L175 Difference]: Start difference. First operand has 126 places, 126 transitions, 268 flow. Second operand 6 states and 609 transitions. [2023-11-29 01:01:59,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 374 flow [2023-11-29 01:01:59,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:01:59,653 INFO L231 Difference]: Finished difference. Result has 132 places, 131 transitions, 350 flow [2023-11-29 01:01:59,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=132, PETRI_TRANSITIONS=131} [2023-11-29 01:01:59,654 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2023-11-29 01:01:59,655 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 131 transitions, 350 flow [2023-11-29 01:01:59,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 0 states have call successors, (0), 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 01:01:59,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:59,655 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] [2023-11-29 01:01:59,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:01:59,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:01:59,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:59,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1491637782, now seen corresponding path program 1 times [2023-11-29 01:01:59,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:59,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492272463] [2023-11-29 01:01:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:59,691 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 01:01:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:59,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492272463] [2023-11-29 01:01:59,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492272463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:59,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:59,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:01:59,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412108004] [2023-11-29 01:01:59,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:59,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:01:59,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:59,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:01:59,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:01:59,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 126 [2023-11-29 01:01:59,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 131 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 01:01:59,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:59,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 126 [2023-11-29 01:01:59,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:59,856 INFO L124 PetriNetUnfolderBase]: 120/876 cut-off events. [2023-11-29 01:01:59,856 INFO L125 PetriNetUnfolderBase]: For 100/143 co-relation queries the response was YES. [2023-11-29 01:01:59,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 876 events. 120/876 cut-off events. For 100/143 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5194 event pairs, 50 based on Foata normal form. 0/786 useless extension candidates. Maximal degree in co-relation 1040. Up to 139 conditions per place. [2023-11-29 01:01:59,864 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 16 selfloop transitions, 4 changer transitions 4/138 dead transitions. [2023-11-29 01:01:59,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 138 transitions, 404 flow [2023-11-29 01:01:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:01:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:01:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-11-29 01:01:59,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2023-11-29 01:01:59,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-11-29 01:01:59,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-11-29 01:01:59,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:59,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-11-29 01:01:59,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 01:01:59,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 01:01:59,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 01:01:59,869 INFO L175 Difference]: Start difference. First operand has 132 places, 131 transitions, 350 flow. Second operand 3 states and 351 transitions. [2023-11-29 01:01:59,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 138 transitions, 404 flow [2023-11-29 01:01:59,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 138 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:01:59,875 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 354 flow [2023-11-29 01:01:59,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2023-11-29 01:01:59,876 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2023-11-29 01:01:59,876 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 354 flow [2023-11-29 01:01:59,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 01:01:59,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:59,877 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] [2023-11-29 01:01:59,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:01:59,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:01:59,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2060384267, now seen corresponding path program 1 times [2023-11-29 01:01:59,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017035453] [2023-11-29 01:01:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:59,967 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 01:01:59,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:59,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017035453] [2023-11-29 01:01:59,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017035453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:59,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:59,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:01:59,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328689556] [2023-11-29 01:01:59,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:59,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:01:59,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:01:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:00,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 126 [2023-11-29 01:02:00,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 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 01:02:00,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:00,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 126 [2023-11-29 01:02:00,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:00,265 INFO L124 PetriNetUnfolderBase]: 185/1303 cut-off events. [2023-11-29 01:02:00,265 INFO L125 PetriNetUnfolderBase]: For 69/70 co-relation queries the response was YES. [2023-11-29 01:02:00,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 1303 events. 185/1303 cut-off events. For 69/70 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 9364 event pairs, 130 based on Foata normal form. 1/1210 useless extension candidates. Maximal degree in co-relation 1271. Up to 311 conditions per place. [2023-11-29 01:02:00,276 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 20 selfloop transitions, 2 changer transitions 4/133 dead transitions. [2023-11-29 01:02:00,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 398 flow [2023-11-29 01:02:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 651 transitions. [2023-11-29 01:02:00,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2023-11-29 01:02:00,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 651 transitions. [2023-11-29 01:02:00,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 651 transitions. [2023-11-29 01:02:00,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:00,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 651 transitions. [2023-11-29 01:02:00,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.5) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 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 01:02:00,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 01:02:00,285 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 01:02:00,285 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 354 flow. Second operand 6 states and 651 transitions. [2023-11-29 01:02:00,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 398 flow [2023-11-29 01:02:00,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 133 transitions, 376 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:00,290 INFO L231 Difference]: Finished difference. Result has 141 places, 127 transitions, 330 flow [2023-11-29 01:02:00,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=141, PETRI_TRANSITIONS=127} [2023-11-29 01:02:00,291 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 15 predicate places. [2023-11-29 01:02:00,292 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 127 transitions, 330 flow [2023-11-29 01:02:00,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 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 01:02:00,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:00,292 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] [2023-11-29 01:02:00,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:02:00,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:02:00,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:00,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1891960348, now seen corresponding path program 1 times [2023-11-29 01:02:00,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:00,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445962648] [2023-11-29 01:02:00,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:00,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:00,335 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 01:02:00,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:00,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445962648] [2023-11-29 01:02:00,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445962648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:00,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:00,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:00,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921293508] [2023-11-29 01:02:00,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:00,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:00,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:00,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2023-11-29 01:02:00,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 127 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:00,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:00,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2023-11-29 01:02:00,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:00,556 INFO L124 PetriNetUnfolderBase]: 172/1212 cut-off events. [2023-11-29 01:02:00,556 INFO L125 PetriNetUnfolderBase]: For 230/471 co-relation queries the response was YES. [2023-11-29 01:02:00,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 1212 events. 172/1212 cut-off events. For 230/471 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8777 event pairs, 77 based on Foata normal form. 3/1067 useless extension candidates. Maximal degree in co-relation 1784. Up to 270 conditions per place. [2023-11-29 01:02:00,566 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 19 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2023-11-29 01:02:00,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 136 transitions, 414 flow [2023-11-29 01:02:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-11-29 01:02:00,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2023-11-29 01:02:00,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-11-29 01:02:00,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-11-29 01:02:00,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:00,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-11-29 01:02:00,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 01:02:00,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 01:02:00,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 01:02:00,571 INFO L175 Difference]: Start difference. First operand has 141 places, 127 transitions, 330 flow. Second operand 3 states and 348 transitions. [2023-11-29 01:02:00,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 136 transitions, 414 flow [2023-11-29 01:02:00,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 136 transitions, 402 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 01:02:00,576 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 374 flow [2023-11-29 01:02:00,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2023-11-29 01:02:00,577 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 12 predicate places. [2023-11-29 01:02:00,577 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 374 flow [2023-11-29 01:02:00,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:00,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:00,578 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] [2023-11-29 01:02:00,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:02:00,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:02:00,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:00,579 INFO L85 PathProgramCache]: Analyzing trace with hash -739667362, now seen corresponding path program 1 times [2023-11-29 01:02:00,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:00,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410694284] [2023-11-29 01:02:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:00,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:02:00,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:00,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410694284] [2023-11-29 01:02:00,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410694284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:00,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:00,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:00,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439683584] [2023-11-29 01:02:00,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:00,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:02:00,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:00,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:02:00,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:02:01,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2023-11-29 01:02:01,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 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 01:02:01,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:01,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2023-11-29 01:02:01,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:01,522 INFO L124 PetriNetUnfolderBase]: 303/1623 cut-off events. [2023-11-29 01:02:01,522 INFO L125 PetriNetUnfolderBase]: For 243/261 co-relation queries the response was YES. [2023-11-29 01:02:01,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 1623 events. 303/1623 cut-off events. For 243/261 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12680 event pairs, 130 based on Foata normal form. 2/1498 useless extension candidates. Maximal degree in co-relation 2225. Up to 285 conditions per place. [2023-11-29 01:02:01,535 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 31 selfloop transitions, 5 changer transitions 0/147 dead transitions. [2023-11-29 01:02:01,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 476 flow [2023-11-29 01:02:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 649 transitions. [2023-11-29 01:02:01,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8584656084656085 [2023-11-29 01:02:01,539 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 649 transitions. [2023-11-29 01:02:01,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 649 transitions. [2023-11-29 01:02:01,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:01,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 649 transitions. [2023-11-29 01:02:01,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 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 01:02:01,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 01:02:01,544 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 01:02:01,545 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 374 flow. Second operand 6 states and 649 transitions. [2023-11-29 01:02:01,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 476 flow [2023-11-29 01:02:01,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 147 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:01,550 INFO L231 Difference]: Finished difference. Result has 140 places, 131 transitions, 368 flow [2023-11-29 01:02:01,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=368, PETRI_PLACES=140, PETRI_TRANSITIONS=131} [2023-11-29 01:02:01,551 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2023-11-29 01:02:01,552 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 131 transitions, 368 flow [2023-11-29 01:02:01,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 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 01:02:01,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:01,552 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:01,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:02:01,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:02:01,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:01,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1799855078, now seen corresponding path program 1 times [2023-11-29 01:02:01,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:01,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710105736] [2023-11-29 01:02:01,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:01,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 01:02:01,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:01,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710105736] [2023-11-29 01:02:01,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710105736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:01,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:01,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:01,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235475006] [2023-11-29 01:02:01,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:01,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:01,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:01,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:01,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:01,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2023-11-29 01:02:01,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 131 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 01:02:01,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:01,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2023-11-29 01:02:01,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:01,881 INFO L124 PetriNetUnfolderBase]: 236/1627 cut-off events. [2023-11-29 01:02:01,881 INFO L125 PetriNetUnfolderBase]: For 611/1680 co-relation queries the response was YES. [2023-11-29 01:02:01,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1627 events. 236/1627 cut-off events. For 611/1680 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13344 event pairs, 93 based on Foata normal form. 3/1484 useless extension candidates. Maximal degree in co-relation 2487. Up to 351 conditions per place. [2023-11-29 01:02:01,891 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 19 selfloop transitions, 10 changer transitions 0/140 dead transitions. [2023-11-29 01:02:01,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 463 flow [2023-11-29 01:02:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2023-11-29 01:02:01,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.917989417989418 [2023-11-29 01:02:01,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2023-11-29 01:02:01,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2023-11-29 01:02:01,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:01,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2023-11-29 01:02:01,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:01,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 01:02:01,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 01:02:01,897 INFO L175 Difference]: Start difference. First operand has 140 places, 131 transitions, 368 flow. Second operand 3 states and 347 transitions. [2023-11-29 01:02:01,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 140 transitions, 463 flow [2023-11-29 01:02:01,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 140 transitions, 453 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:02:01,903 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 440 flow [2023-11-29 01:02:01,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2023-11-29 01:02:01,904 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 13 predicate places. [2023-11-29 01:02:01,904 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 440 flow [2023-11-29 01:02:01,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 01:02:01,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:01,904 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] [2023-11-29 01:02:01,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:02:01,905 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:02:01,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:01,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1468378632, now seen corresponding path program 1 times [2023-11-29 01:02:01,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:01,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975117961] [2023-11-29 01:02:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:01,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:02,015 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 01:02:02,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:02,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975117961] [2023-11-29 01:02:02,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975117961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:02:02,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986962606] [2023-11-29 01:02:02,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:02,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:02,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:02,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:02,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:02:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:02,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:02:02,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:02,242 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 01:02:02,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:02:02,321 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 01:02:02,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986962606] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:02:02,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:02:02,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 01:02:02,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391125005] [2023-11-29 01:02:02,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:02:02,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:02:02,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:02,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:02:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:02:02,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2023-11-29 01:02:02,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 440 flow. Second operand has 9 states, 9 states have (on average 104.33333333333333) internal successors, (939), 9 states have internal predecessors, (939), 0 states have call successors, (0), 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 01:02:02,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:02,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2023-11-29 01:02:02,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:02,809 INFO L124 PetriNetUnfolderBase]: 186/1459 cut-off events. [2023-11-29 01:02:02,809 INFO L125 PetriNetUnfolderBase]: For 392/439 co-relation queries the response was YES. [2023-11-29 01:02:02,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2335 conditions, 1459 events. 186/1459 cut-off events. For 392/439 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10744 event pairs, 61 based on Foata normal form. 0/1405 useless extension candidates. Maximal degree in co-relation 1631. Up to 179 conditions per place. [2023-11-29 01:02:02,819 INFO L140 encePairwiseOnDemand]: 116/126 looper letters, 25 selfloop transitions, 9 changer transitions 12/157 dead transitions. [2023-11-29 01:02:02,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 157 transitions, 552 flow [2023-11-29 01:02:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:02:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 01:02:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 862 transitions. [2023-11-29 01:02:02,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8551587301587301 [2023-11-29 01:02:02,824 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 862 transitions. [2023-11-29 01:02:02,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 862 transitions. [2023-11-29 01:02:02,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:02,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 862 transitions. [2023-11-29 01:02:02,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 107.75) internal successors, (862), 8 states have internal predecessors, (862), 0 states have call successors, (0), 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 01:02:02,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:02,832 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:02,832 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 440 flow. Second operand 8 states and 862 transitions. [2023-11-29 01:02:02,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 157 transitions, 552 flow [2023-11-29 01:02:02,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 157 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:02,839 INFO L231 Difference]: Finished difference. Result has 147 places, 135 transitions, 431 flow [2023-11-29 01:02:02,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=431, PETRI_PLACES=147, PETRI_TRANSITIONS=135} [2023-11-29 01:02:02,840 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 21 predicate places. [2023-11-29 01:02:02,840 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 135 transitions, 431 flow [2023-11-29 01:02:02,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.33333333333333) internal successors, (939), 9 states have internal predecessors, (939), 0 states have call successors, (0), 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 01:02:02,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:02,841 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:02,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:02:03,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:02:03,042 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 01:02:03,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash 826716754, now seen corresponding path program 1 times [2023-11-29 01:02:03,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:03,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557482149] [2023-11-29 01:02:03,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:03,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:02:03,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:02:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:02:03,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:02:03,108 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:02:03,108 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-29 01:02:03,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-29 01:02:03,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-29 01:02:03,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 01:02:03,110 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:03,110 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:02:03,110 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 01:02:03,135 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 01:02:03,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 144 transitions, 315 flow [2023-11-29 01:02:03,195 INFO L124 PetriNetUnfolderBase]: 21/480 cut-off events. [2023-11-29 01:02:03,195 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-29 01:02:03,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 480 events. 21/480 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1445 event pairs, 1 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 286. Up to 16 conditions per place. [2023-11-29 01:02:03,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 144 transitions, 315 flow [2023-11-29 01:02:03,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 144 transitions, 315 flow [2023-11-29 01:02:03,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:02:03,201 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;@226a6e5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:02:03,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-29 01:02:03,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:02:03,205 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 01:02:03,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:02:03,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:03,205 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] [2023-11-29 01:02:03,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:03,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:03,206 INFO L85 PathProgramCache]: Analyzing trace with hash 706722813, now seen corresponding path program 1 times [2023-11-29 01:02:03,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:03,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628183251] [2023-11-29 01:02:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:03,411 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 01:02:03,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:03,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628183251] [2023-11-29 01:02:03,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628183251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:03,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:03,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:03,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281941119] [2023-11-29 01:02:03,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:03,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:02:03,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:03,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:02:03,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:02:03,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2023-11-29 01:02:03,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 144 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 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 01:02:03,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:03,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2023-11-29 01:02:03,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:04,599 INFO L124 PetriNetUnfolderBase]: 1609/7784 cut-off events. [2023-11-29 01:02:04,599 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2023-11-29 01:02:04,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10541 conditions, 7784 events. 1609/7784 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 82359 event pairs, 1387 based on Foata normal form. 81/7273 useless extension candidates. Maximal degree in co-relation 3410. Up to 2326 conditions per place. [2023-11-29 01:02:04,644 INFO L140 encePairwiseOnDemand]: 125/144 looper letters, 36 selfloop transitions, 13 changer transitions 1/156 dead transitions. [2023-11-29 01:02:04,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 437 flow [2023-11-29 01:02:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:04,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 699 transitions. [2023-11-29 01:02:04,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8090277777777778 [2023-11-29 01:02:04,647 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 699 transitions. [2023-11-29 01:02:04,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 699 transitions. [2023-11-29 01:02:04,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:04,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 699 transitions. [2023-11-29 01:02:04,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 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 01:02:04,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 01:02:04,652 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 01:02:04,652 INFO L175 Difference]: Start difference. First operand has 145 places, 144 transitions, 315 flow. Second operand 6 states and 699 transitions. [2023-11-29 01:02:04,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 437 flow [2023-11-29 01:02:04,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 156 transitions, 437 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:02:04,655 INFO L231 Difference]: Finished difference. Result has 151 places, 149 transitions, 397 flow [2023-11-29 01:02:04,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=151, PETRI_TRANSITIONS=149} [2023-11-29 01:02:04,656 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 6 predicate places. [2023-11-29 01:02:04,656 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 149 transitions, 397 flow [2023-11-29 01:02:04,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 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 01:02:04,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:04,657 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] [2023-11-29 01:02:04,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:02:04,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:04,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:04,658 INFO L85 PathProgramCache]: Analyzing trace with hash -662106090, now seen corresponding path program 1 times [2023-11-29 01:02:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325492030] [2023-11-29 01:02:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:04,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:04,679 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 01:02:04,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:04,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325492030] [2023-11-29 01:02:04,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325492030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:04,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:04,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:04,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987428762] [2023-11-29 01:02:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:04,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:04,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:04,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 144 [2023-11-29 01:02:04,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 149 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 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 01:02:04,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:04,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 144 [2023-11-29 01:02:04,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:05,312 INFO L124 PetriNetUnfolderBase]: 1072/4666 cut-off events. [2023-11-29 01:02:05,312 INFO L125 PetriNetUnfolderBase]: For 520/868 co-relation queries the response was YES. [2023-11-29 01:02:05,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7002 conditions, 4666 events. 1072/4666 cut-off events. For 520/868 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 43356 event pairs, 542 based on Foata normal form. 0/4183 useless extension candidates. Maximal degree in co-relation 6276. Up to 1110 conditions per place. [2023-11-29 01:02:05,341 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 23 selfloop transitions, 5 changer transitions 4/159 dead transitions. [2023-11-29 01:02:05,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 159 transitions, 473 flow [2023-11-29 01:02:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-11-29 01:02:05,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9212962962962963 [2023-11-29 01:02:05,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-11-29 01:02:05,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-11-29 01:02:05,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:05,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-11-29 01:02:05,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 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 01:02:05,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:05,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:05,348 INFO L175 Difference]: Start difference. First operand has 151 places, 149 transitions, 397 flow. Second operand 3 states and 398 transitions. [2023-11-29 01:02:05,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 159 transitions, 473 flow [2023-11-29 01:02:05,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 159 transitions, 469 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:02:05,376 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 409 flow [2023-11-29 01:02:05,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2023-11-29 01:02:05,378 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 8 predicate places. [2023-11-29 01:02:05,378 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 409 flow [2023-11-29 01:02:05,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 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 01:02:05,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:05,378 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] [2023-11-29 01:02:05,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:02:05,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:05,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:05,379 INFO L85 PathProgramCache]: Analyzing trace with hash -281166181, now seen corresponding path program 1 times [2023-11-29 01:02:05,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:05,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392051548] [2023-11-29 01:02:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:05,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:05,458 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 01:02:05,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:05,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392051548] [2023-11-29 01:02:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392051548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:05,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:05,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:05,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378401551] [2023-11-29 01:02:05,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:05,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:02:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:05,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:02:05,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:05,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2023-11-29 01:02:05,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 409 flow. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 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 01:02:05,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:05,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2023-11-29 01:02:05,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:06,306 INFO L124 PetriNetUnfolderBase]: 1392/6677 cut-off events. [2023-11-29 01:02:06,306 INFO L125 PetriNetUnfolderBase]: For 426/433 co-relation queries the response was YES. [2023-11-29 01:02:06,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9830 conditions, 6677 events. 1392/6677 cut-off events. For 426/433 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 67410 event pairs, 1078 based on Foata normal form. 1/6031 useless extension candidates. Maximal degree in co-relation 6067. Up to 1835 conditions per place. [2023-11-29 01:02:06,344 INFO L140 encePairwiseOnDemand]: 137/144 looper letters, 24 selfloop transitions, 2 changer transitions 4/152 dead transitions. [2023-11-29 01:02:06,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 152 transitions, 461 flow [2023-11-29 01:02:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 739 transitions. [2023-11-29 01:02:06,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8553240740740741 [2023-11-29 01:02:06,347 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 739 transitions. [2023-11-29 01:02:06,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 739 transitions. [2023-11-29 01:02:06,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:06,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 739 transitions. [2023-11-29 01:02:06,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 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 01:02:06,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 01:02:06,353 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 01:02:06,353 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 409 flow. Second operand 6 states and 739 transitions. [2023-11-29 01:02:06,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 152 transitions, 461 flow [2023-11-29 01:02:06,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 152 transitions, 437 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:06,362 INFO L231 Difference]: Finished difference. Result has 160 places, 146 transitions, 383 flow [2023-11-29 01:02:06,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=160, PETRI_TRANSITIONS=146} [2023-11-29 01:02:06,363 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 15 predicate places. [2023-11-29 01:02:06,363 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 146 transitions, 383 flow [2023-11-29 01:02:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 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 01:02:06,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:06,364 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] [2023-11-29 01:02:06,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:02:06,364 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:06,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:06,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1450795388, now seen corresponding path program 1 times [2023-11-29 01:02:06,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:06,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797302282] [2023-11-29 01:02:06,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:06,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:06,394 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 01:02:06,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:06,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797302282] [2023-11-29 01:02:06,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797302282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:06,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:06,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:06,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193379873] [2023-11-29 01:02:06,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:06,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:06,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2023-11-29 01:02:06,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 146 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 01:02:06,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:06,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2023-11-29 01:02:06,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:07,445 INFO L124 PetriNetUnfolderBase]: 1718/7427 cut-off events. [2023-11-29 01:02:07,445 INFO L125 PetriNetUnfolderBase]: For 1601/4150 co-relation queries the response was YES. [2023-11-29 01:02:07,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12028 conditions, 7427 events. 1718/7427 cut-off events. For 1601/4150 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 79319 event pairs, 957 based on Foata normal form. 8/6599 useless extension candidates. Maximal degree in co-relation 11957. Up to 2225 conditions per place. [2023-11-29 01:02:07,481 INFO L140 encePairwiseOnDemand]: 137/144 looper letters, 29 selfloop transitions, 9 changer transitions 0/161 dead transitions. [2023-11-29 01:02:07,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 161 transitions, 517 flow [2023-11-29 01:02:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-11-29 01:02:07,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9189814814814815 [2023-11-29 01:02:07,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-11-29 01:02:07,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-11-29 01:02:07,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:07,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-11-29 01:02:07,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 01:02:07,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:07,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:07,485 INFO L175 Difference]: Start difference. First operand has 160 places, 146 transitions, 383 flow. Second operand 3 states and 397 transitions. [2023-11-29 01:02:07,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 161 transitions, 517 flow [2023-11-29 01:02:07,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 161 transitions, 505 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 01:02:07,492 INFO L231 Difference]: Finished difference. Result has 157 places, 153 transitions, 447 flow [2023-11-29 01:02:07,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=157, PETRI_TRANSITIONS=153} [2023-11-29 01:02:07,493 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 12 predicate places. [2023-11-29 01:02:07,493 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 153 transitions, 447 flow [2023-11-29 01:02:07,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 01:02:07,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:07,494 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:07,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:02:07,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:07,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:07,494 INFO L85 PathProgramCache]: Analyzing trace with hash 691520110, now seen corresponding path program 1 times [2023-11-29 01:02:07,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:07,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366654875] [2023-11-29 01:02:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:07,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:02:07,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:07,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366654875] [2023-11-29 01:02:07,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366654875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:07,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:07,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396547307] [2023-11-29 01:02:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:07,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:02:07,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:07,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:02:07,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:02:08,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2023-11-29 01:02:08,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 153 transitions, 447 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 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 01:02:08,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:08,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2023-11-29 01:02:08,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:09,231 INFO L124 PetriNetUnfolderBase]: 2579/9442 cut-off events. [2023-11-29 01:02:09,232 INFO L125 PetriNetUnfolderBase]: For 1408/1642 co-relation queries the response was YES. [2023-11-29 01:02:09,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15939 conditions, 9442 events. 2579/9442 cut-off events. For 1408/1642 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 100651 event pairs, 1141 based on Foata normal form. 11/8474 useless extension candidates. Maximal degree in co-relation 13424. Up to 1863 conditions per place. [2023-11-29 01:02:09,295 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 43 selfloop transitions, 5 changer transitions 0/176 dead transitions. [2023-11-29 01:02:09,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 176 transitions, 589 flow [2023-11-29 01:02:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2023-11-29 01:02:09,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8622685185185185 [2023-11-29 01:02:09,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2023-11-29 01:02:09,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2023-11-29 01:02:09,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:09,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2023-11-29 01:02:09,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 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 01:02:09,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 01:02:09,305 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 01:02:09,305 INFO L175 Difference]: Start difference. First operand has 157 places, 153 transitions, 447 flow. Second operand 6 states and 745 transitions. [2023-11-29 01:02:09,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 176 transitions, 589 flow [2023-11-29 01:02:09,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 176 transitions, 571 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:09,319 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 437 flow [2023-11-29 01:02:09,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2023-11-29 01:02:09,320 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2023-11-29 01:02:09,321 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 437 flow [2023-11-29 01:02:09,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 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 01:02:09,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:09,322 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:09,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 01:02:09,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:09,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1404697062, now seen corresponding path program 1 times [2023-11-29 01:02:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697593797] [2023-11-29 01:02:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:09,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 01:02:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697593797] [2023-11-29 01:02:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697593797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:09,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:09,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:09,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177046243] [2023-11-29 01:02:09,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:09,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:09,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2023-11-29 01:02:09,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:09,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:09,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2023-11-29 01:02:09,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:10,782 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([453] L1038-->L1038-1: Formula: (= |v_#race~data~0_4| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][133], [Black: 159#true, 33#L1023-6true, 190#true, 3#L1023-6true, threadThread1of3ForFork0InUse, 119#L1038-1true, Black: 167#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of3ForFork0InUse, 183#true, threadThread3of3ForFork0NotInUse, Black: 179#(= |#race~data~0| |threadThread1of3ForFork0_#t~nondet5|), Black: 148#true, Black: 151#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 152#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 150#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)]) [2023-11-29 01:02:10,782 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-29 01:02:10,782 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 01:02:10,782 INFO L297 olderBase$Statistics]: existing Event has 142 ancestors and is cut-off event [2023-11-29 01:02:10,782 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 01:02:10,888 INFO L124 PetriNetUnfolderBase]: 2769/10937 cut-off events. [2023-11-29 01:02:10,888 INFO L125 PetriNetUnfolderBase]: For 5289/11689 co-relation queries the response was YES. [2023-11-29 01:02:10,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20367 conditions, 10937 events. 2769/10937 cut-off events. For 5289/11689 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 125598 event pairs, 1240 based on Foata normal form. 11/9718 useless extension candidates. Maximal degree in co-relation 17853. Up to 3354 conditions per place. [2023-11-29 01:02:10,940 INFO L140 encePairwiseOnDemand]: 137/144 looper letters, 31 selfloop transitions, 14 changer transitions 0/169 dead transitions. [2023-11-29 01:02:10,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 169 transitions, 606 flow [2023-11-29 01:02:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-11-29 01:02:10,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-29 01:02:10,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-11-29 01:02:10,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-11-29 01:02:10,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:10,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-11-29 01:02:10,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 01:02:10,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:10,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:10,946 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 437 flow. Second operand 3 states and 396 transitions. [2023-11-29 01:02:10,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 169 transitions, 606 flow [2023-11-29 01:02:10,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 169 transitions, 596 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:02:10,967 INFO L231 Difference]: Finished difference. Result has 158 places, 162 transitions, 557 flow [2023-11-29 01:02:10,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=557, PETRI_PLACES=158, PETRI_TRANSITIONS=162} [2023-11-29 01:02:10,968 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 13 predicate places. [2023-11-29 01:02:10,968 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 162 transitions, 557 flow [2023-11-29 01:02:10,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:10,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:10,969 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] [2023-11-29 01:02:10,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 01:02:10,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:10,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:10,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1679496552, now seen corresponding path program 1 times [2023-11-29 01:02:10,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:10,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996514435] [2023-11-29 01:02:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:10,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:11,060 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 01:02:11,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:11,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996514435] [2023-11-29 01:02:11,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996514435] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:02:11,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046922811] [2023-11-29 01:02:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:11,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:11,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:11,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:11,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:02:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:11,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:02:11,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:11,258 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 01:02:11,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:02:11,318 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 01:02:11,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046922811] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:02:11,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:02:11,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 01:02:11,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50821360] [2023-11-29 01:02:11,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:02:11,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:02:11,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:02:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:02:11,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2023-11-29 01:02:11,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 162 transitions, 557 flow. Second operand has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 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 01:02:11,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:11,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2023-11-29 01:02:11,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:12,920 INFO L124 PetriNetUnfolderBase]: 2028/10252 cut-off events. [2023-11-29 01:02:12,920 INFO L125 PetriNetUnfolderBase]: For 3361/3852 co-relation queries the response was YES. [2023-11-29 01:02:12,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17145 conditions, 10252 events. 2028/10252 cut-off events. For 3361/3852 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 115782 event pairs, 702 based on Foata normal form. 5/9494 useless extension candidates. Maximal degree in co-relation 12275. Up to 1342 conditions per place. [2023-11-29 01:02:12,985 INFO L140 encePairwiseOnDemand]: 134/144 looper letters, 48 selfloop transitions, 10 changer transitions 0/193 dead transitions. [2023-11-29 01:02:12,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 193 transitions, 736 flow [2023-11-29 01:02:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:02:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 01:02:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 987 transitions. [2023-11-29 01:02:12,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8567708333333334 [2023-11-29 01:02:12,990 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 987 transitions. [2023-11-29 01:02:12,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 987 transitions. [2023-11-29 01:02:12,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:12,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 987 transitions. [2023-11-29 01:02:12,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 123.375) internal successors, (987), 8 states have internal predecessors, (987), 0 states have call successors, (0), 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 01:02:12,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 144.0) internal successors, (1296), 9 states have internal predecessors, (1296), 0 states have call successors, (0), 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 01:02:12,998 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 144.0) internal successors, (1296), 9 states have internal predecessors, (1296), 0 states have call successors, (0), 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 01:02:12,998 INFO L175 Difference]: Start difference. First operand has 158 places, 162 transitions, 557 flow. Second operand 8 states and 987 transitions. [2023-11-29 01:02:12,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 193 transitions, 736 flow [2023-11-29 01:02:13,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 193 transitions, 710 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:13,015 INFO L231 Difference]: Finished difference. Result has 166 places, 164 transitions, 565 flow [2023-11-29 01:02:13,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=565, PETRI_PLACES=166, PETRI_TRANSITIONS=164} [2023-11-29 01:02:13,016 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 21 predicate places. [2023-11-29 01:02:13,016 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 164 transitions, 565 flow [2023-11-29 01:02:13,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 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 01:02:13,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:13,017 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:13,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:02:13,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:13,218 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:13,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:13,218 INFO L85 PathProgramCache]: Analyzing trace with hash 191513338, now seen corresponding path program 1 times [2023-11-29 01:02:13,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:13,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472840135] [2023-11-29 01:02:13,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:13,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:13,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:13,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472840135] [2023-11-29 01:02:13,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472840135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:13,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:13,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:02:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005047374] [2023-11-29 01:02:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:13,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:13,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:13,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 144 [2023-11-29 01:02:13,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 164 transitions, 565 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:13,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:13,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 144 [2023-11-29 01:02:13,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:13,624 INFO L124 PetriNetUnfolderBase]: 117/1870 cut-off events. [2023-11-29 01:02:13,624 INFO L125 PetriNetUnfolderBase]: For 622/801 co-relation queries the response was YES. [2023-11-29 01:02:13,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3071 conditions, 1870 events. 117/1870 cut-off events. For 622/801 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 15570 event pairs, 43 based on Foata normal form. 24/1814 useless extension candidates. Maximal degree in co-relation 2427. Up to 144 conditions per place. [2023-11-29 01:02:13,630 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 12 selfloop transitions, 6 changer transitions 0/159 dead transitions. [2023-11-29 01:02:13,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 159 transitions, 552 flow [2023-11-29 01:02:13,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2023-11-29 01:02:13,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9375 [2023-11-29 01:02:13,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2023-11-29 01:02:13,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2023-11-29 01:02:13,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:13,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2023-11-29 01:02:13,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:13,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:13,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:13,634 INFO L175 Difference]: Start difference. First operand has 166 places, 164 transitions, 565 flow. Second operand 3 states and 405 transitions. [2023-11-29 01:02:13,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 159 transitions, 552 flow [2023-11-29 01:02:13,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 159 transitions, 542 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-29 01:02:13,640 INFO L231 Difference]: Finished difference. Result has 165 places, 154 transitions, 487 flow [2023-11-29 01:02:13,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=165, PETRI_TRANSITIONS=154} [2023-11-29 01:02:13,641 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 20 predicate places. [2023-11-29 01:02:13,641 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 154 transitions, 487 flow [2023-11-29 01:02:13,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:13,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:13,642 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:02:13,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:13,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1812935107, now seen corresponding path program 1 times [2023-11-29 01:02:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:13,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028864980] [2023-11-29 01:02:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 01:02:13,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:13,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028864980] [2023-11-29 01:02:13,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028864980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:13,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:13,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:13,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314457180] [2023-11-29 01:02:13,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:13,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:13,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:13,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:13,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:13,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2023-11-29 01:02:13,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 01:02:13,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:13,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2023-11-29 01:02:13,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:14,010 INFO L124 PetriNetUnfolderBase]: 203/2177 cut-off events. [2023-11-29 01:02:14,011 INFO L125 PetriNetUnfolderBase]: For 1399/1861 co-relation queries the response was YES. [2023-11-29 01:02:14,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3967 conditions, 2177 events. 203/2177 cut-off events. For 1399/1861 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 19460 event pairs, 134 based on Foata normal form. 4/2041 useless extension candidates. Maximal degree in co-relation 3265. Up to 435 conditions per place. [2023-11-29 01:02:14,018 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 25 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2023-11-29 01:02:14,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 159 transitions, 569 flow [2023-11-29 01:02:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:14,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:14,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-11-29 01:02:14,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9004629629629629 [2023-11-29 01:02:14,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-11-29 01:02:14,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-11-29 01:02:14,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:14,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-11-29 01:02:14,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:14,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:14,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 01:02:14,022 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 487 flow. Second operand 3 states and 389 transitions. [2023-11-29 01:02:14,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 159 transitions, 569 flow [2023-11-29 01:02:14,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 159 transitions, 563 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:02:14,027 INFO L231 Difference]: Finished difference. Result has 168 places, 157 transitions, 521 flow [2023-11-29 01:02:14,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=168, PETRI_TRANSITIONS=157} [2023-11-29 01:02:14,028 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 23 predicate places. [2023-11-29 01:02:14,028 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 157 transitions, 521 flow [2023-11-29 01:02:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 01:02:14,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:14,028 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:14,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 01:02:14,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 01:02:14,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:14,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1768600753, now seen corresponding path program 1 times [2023-11-29 01:02:14,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760040933] [2023-11-29 01:02:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:02:14,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:02:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:02:14,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:02:14,091 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-11-29 01:02:14,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-11-29 01:02:14,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-11-29 01:02:14,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 01:02:14,093 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:14,094 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:02:14,094 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-29 01:02:14,116 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 01:02:14,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 162 transitions, 364 flow [2023-11-29 01:02:14,200 INFO L124 PetriNetUnfolderBase]: 43/850 cut-off events. [2023-11-29 01:02:14,200 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-29 01:02:14,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 850 events. 43/850 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3416 event pairs, 6 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 500. Up to 32 conditions per place. [2023-11-29 01:02:14,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 162 transitions, 364 flow [2023-11-29 01:02:14,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 162 transitions, 364 flow [2023-11-29 01:02:14,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:02:14,207 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;@226a6e5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:02:14,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-29 01:02:14,209 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:02:14,209 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 01:02:14,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:02:14,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:14,210 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] [2023-11-29 01:02:14,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:14,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1807509379, now seen corresponding path program 1 times [2023-11-29 01:02:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228577116] [2023-11-29 01:02:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:14,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:14,348 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 01:02:14,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:14,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228577116] [2023-11-29 01:02:14,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228577116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:14,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:14,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:14,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708145134] [2023-11-29 01:02:14,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:14,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:02:14,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:02:14,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:02:14,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 162 [2023-11-29 01:02:14,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 162 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 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 01:02:14,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:14,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 162 [2023-11-29 01:02:14,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:18,574 INFO L124 PetriNetUnfolderBase]: 8218/33014 cut-off events. [2023-11-29 01:02:18,574 INFO L125 PetriNetUnfolderBase]: For 1120/1120 co-relation queries the response was YES. [2023-11-29 01:02:18,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45649 conditions, 33014 events. 8218/33014 cut-off events. For 1120/1120 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 425131 event pairs, 7076 based on Foata normal form. 312/30786 useless extension candidates. Maximal degree in co-relation 14886. Up to 10644 conditions per place. [2023-11-29 01:02:18,756 INFO L140 encePairwiseOnDemand]: 143/162 looper letters, 42 selfloop transitions, 13 changer transitions 1/176 dead transitions. [2023-11-29 01:02:18,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 176 transitions, 502 flow [2023-11-29 01:02:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:18,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 789 transitions. [2023-11-29 01:02:18,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8117283950617284 [2023-11-29 01:02:18,759 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 789 transitions. [2023-11-29 01:02:18,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 789 transitions. [2023-11-29 01:02:18,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:18,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 789 transitions. [2023-11-29 01:02:18,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 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 01:02:18,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:18,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:18,763 INFO L175 Difference]: Start difference. First operand has 164 places, 162 transitions, 364 flow. Second operand 6 states and 789 transitions. [2023-11-29 01:02:18,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 176 transitions, 502 flow [2023-11-29 01:02:18,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 176 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:02:18,768 INFO L231 Difference]: Finished difference. Result has 170 places, 167 transitions, 446 flow [2023-11-29 01:02:18,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=170, PETRI_TRANSITIONS=167} [2023-11-29 01:02:18,769 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 6 predicate places. [2023-11-29 01:02:18,769 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 167 transitions, 446 flow [2023-11-29 01:02:18,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 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 01:02:18,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:18,770 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] [2023-11-29 01:02:18,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 01:02:18,770 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:18,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:18,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1209899350, now seen corresponding path program 1 times [2023-11-29 01:02:18,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:18,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600357855] [2023-11-29 01:02:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:18,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:18,795 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 01:02:18,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:18,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600357855] [2023-11-29 01:02:18,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600357855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:18,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:18,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:18,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921272127] [2023-11-29 01:02:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:18,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:18,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:18,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:18,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2023-11-29 01:02:18,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 167 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 01:02:18,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:18,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2023-11-29 01:02:18,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:22,720 INFO L124 PetriNetUnfolderBase]: 7860/26678 cut-off events. [2023-11-29 01:02:22,721 INFO L125 PetriNetUnfolderBase]: For 3149/5343 co-relation queries the response was YES. [2023-11-29 01:02:22,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40953 conditions, 26678 events. 7860/26678 cut-off events. For 3149/5343 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 321423 event pairs, 4292 based on Foata normal form. 0/24271 useless extension candidates. Maximal degree in co-relation 37726. Up to 7653 conditions per place. [2023-11-29 01:02:22,877 INFO L140 encePairwiseOnDemand]: 155/162 looper letters, 30 selfloop transitions, 6 changer transitions 4/180 dead transitions. [2023-11-29 01:02:22,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 180 transitions, 544 flow [2023-11-29 01:02:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2023-11-29 01:02:22,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9156378600823045 [2023-11-29 01:02:22,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2023-11-29 01:02:22,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2023-11-29 01:02:22,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:22,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2023-11-29 01:02:22,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 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 01:02:22,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:02:22,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:02:22,882 INFO L175 Difference]: Start difference. First operand has 170 places, 167 transitions, 446 flow. Second operand 3 states and 445 transitions. [2023-11-29 01:02:22,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 180 transitions, 544 flow [2023-11-29 01:02:22,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 180 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:02:22,989 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 466 flow [2023-11-29 01:02:22,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2023-11-29 01:02:22,990 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 8 predicate places. [2023-11-29 01:02:22,990 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 466 flow [2023-11-29 01:02:22,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 01:02:22,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:22,990 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] [2023-11-29 01:02:22,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 01:02:22,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:22,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1916427773, now seen corresponding path program 1 times [2023-11-29 01:02:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585457967] [2023-11-29 01:02:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:23,049 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 01:02:23,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:23,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585457967] [2023-11-29 01:02:23,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585457967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:23,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:23,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:23,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367603] [2023-11-29 01:02:23,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:23,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:02:23,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:23,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:02:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:23,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2023-11-29 01:02:23,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 466 flow. Second operand has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 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 01:02:23,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:23,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2023-11-29 01:02:23,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:27,661 INFO L124 PetriNetUnfolderBase]: 8759/34260 cut-off events. [2023-11-29 01:02:27,662 INFO L125 PetriNetUnfolderBase]: For 2360/2360 co-relation queries the response was YES. [2023-11-29 01:02:27,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51610 conditions, 34260 events. 8759/34260 cut-off events. For 2360/2360 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 439000 event pairs, 5733 based on Foata normal form. 1/29895 useless extension candidates. Maximal degree in co-relation 29068. Up to 9813 conditions per place. [2023-11-29 01:02:27,892 INFO L140 encePairwiseOnDemand]: 155/162 looper letters, 28 selfloop transitions, 2 changer transitions 4/171 dead transitions. [2023-11-29 01:02:27,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 171 transitions, 526 flow [2023-11-29 01:02:27,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 827 transitions. [2023-11-29 01:02:27,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8508230452674898 [2023-11-29 01:02:27,894 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 827 transitions. [2023-11-29 01:02:27,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 827 transitions. [2023-11-29 01:02:27,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:27,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 827 transitions. [2023-11-29 01:02:27,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 0 states have call successors, (0), 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 01:02:27,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:27,897 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:27,897 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 466 flow. Second operand 6 states and 827 transitions. [2023-11-29 01:02:27,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 171 transitions, 526 flow [2023-11-29 01:02:27,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 171 transitions, 500 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:27,961 INFO L231 Difference]: Finished difference. Result has 179 places, 165 transitions, 438 flow [2023-11-29 01:02:27,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=179, PETRI_TRANSITIONS=165} [2023-11-29 01:02:27,962 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 15 predicate places. [2023-11-29 01:02:27,962 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 165 transitions, 438 flow [2023-11-29 01:02:27,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 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 01:02:27,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:27,962 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] [2023-11-29 01:02:27,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 01:02:27,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:27,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:27,963 INFO L85 PathProgramCache]: Analyzing trace with hash 745533254, now seen corresponding path program 1 times [2023-11-29 01:02:27,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:27,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524470746] [2023-11-29 01:02:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:27,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:27,990 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 01:02:27,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:27,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524470746] [2023-11-29 01:02:27,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524470746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:27,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:27,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:27,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954100800] [2023-11-29 01:02:27,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:27,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:27,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:27,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:27,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:28,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 162 [2023-11-29 01:02:28,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 165 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 01:02:28,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:28,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 162 [2023-11-29 01:02:28,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:34,739 INFO L124 PetriNetUnfolderBase]: 13502/49384 cut-off events. [2023-11-29 01:02:34,739 INFO L125 PetriNetUnfolderBase]: For 10928/23790 co-relation queries the response was YES. [2023-11-29 01:02:34,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80529 conditions, 49384 events. 13502/49384 cut-off events. For 10928/23790 co-relation queries the response was YES. Maximal size of possible extension queue 1605. Compared 676274 event pairs, 7306 based on Foata normal form. 34/44013 useless extension candidates. Maximal degree in co-relation 80457. Up to 15734 conditions per place. [2023-11-29 01:02:35,161 INFO L140 encePairwiseOnDemand]: 154/162 looper letters, 39 selfloop transitions, 11 changer transitions 0/186 dead transitions. [2023-11-29 01:02:35,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 186 transitions, 624 flow [2023-11-29 01:02:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:35,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:35,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-29 01:02:35,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9176954732510288 [2023-11-29 01:02:35,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-29 01:02:35,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-29 01:02:35,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:35,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-29 01:02:35,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 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 01:02:35,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:02:35,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:02:35,166 INFO L175 Difference]: Start difference. First operand has 179 places, 165 transitions, 438 flow. Second operand 3 states and 446 transitions. [2023-11-29 01:02:35,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 186 transitions, 624 flow [2023-11-29 01:02:35,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 186 transitions, 612 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 01:02:35,210 INFO L231 Difference]: Finished difference. Result has 176 places, 174 transitions, 522 flow [2023-11-29 01:02:35,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=176, PETRI_TRANSITIONS=174} [2023-11-29 01:02:35,210 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 12 predicate places. [2023-11-29 01:02:35,210 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 174 transitions, 522 flow [2023-11-29 01:02:35,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 01:02:35,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:35,211 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] [2023-11-29 01:02:35,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 01:02:35,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:35,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:35,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1422689790, now seen corresponding path program 1 times [2023-11-29 01:02:35,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:35,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158909880] [2023-11-29 01:02:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:35,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:02:35,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:35,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158909880] [2023-11-29 01:02:35,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158909880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:35,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:35,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:02:35,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098363158] [2023-11-29 01:02:35,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:35,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:02:35,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:35,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:02:35,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:02:35,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2023-11-29 01:02:35,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 174 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 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 01:02:35,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:35,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2023-11-29 01:02:35,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:41,294 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][172], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 149#L1024true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, 51#L1022-3true, Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 196#true, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:41,295 INFO L294 olderBase$Statistics]: this new event has 163 ancestors and is cut-off event [2023-11-29 01:02:41,295 INFO L297 olderBase$Statistics]: existing Event has 163 ancestors and is cut-off event [2023-11-29 01:02:41,295 INFO L297 olderBase$Statistics]: existing Event has 114 ancestors and is cut-off event [2023-11-29 01:02:41,295 INFO L297 olderBase$Statistics]: existing Event has 114 ancestors and is cut-off event [2023-11-29 01:02:41,766 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][203], [threadThread2of4ForFork0NotInUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 113#L1023-6true, threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 196#true, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:41,766 INFO L294 olderBase$Statistics]: this new event has 167 ancestors and is cut-off event [2023-11-29 01:02:41,767 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:02:41,767 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:02:41,767 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:02:41,837 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][172], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 128#L1023-5true, 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 196#true, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:41,837 INFO L294 olderBase$Statistics]: this new event has 167 ancestors and is cut-off event [2023-11-29 01:02:41,837 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 01:02:41,837 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 01:02:41,837 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:02:41,966 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][197], [threadThread2of4ForFork0NotInUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 149#L1024true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 196#true, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:41,966 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 01:02:41,966 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 01:02:41,966 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 01:02:41,966 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 01:02:43,057 INFO L124 PetriNetUnfolderBase]: 18702/55132 cut-off events. [2023-11-29 01:02:43,057 INFO L125 PetriNetUnfolderBase]: For 8385/10470 co-relation queries the response was YES. [2023-11-29 01:02:43,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95577 conditions, 55132 events. 18702/55132 cut-off events. For 8385/10470 co-relation queries the response was YES. Maximal size of possible extension queue 1680. Compared 715222 event pairs, 8573 based on Foata normal form. 160/48913 useless extension candidates. Maximal degree in co-relation 80271. Up to 11744 conditions per place. [2023-11-29 01:02:43,481 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 55 selfloop transitions, 5 changer transitions 0/205 dead transitions. [2023-11-29 01:02:43,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 205 transitions, 704 flow [2023-11-29 01:02:43,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:02:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:02:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 841 transitions. [2023-11-29 01:02:43,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8652263374485597 [2023-11-29 01:02:43,483 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 841 transitions. [2023-11-29 01:02:43,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 841 transitions. [2023-11-29 01:02:43,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:43,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 841 transitions. [2023-11-29 01:02:43,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 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 01:02:43,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:43,487 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 01:02:43,487 INFO L175 Difference]: Start difference. First operand has 176 places, 174 transitions, 522 flow. Second operand 6 states and 841 transitions. [2023-11-29 01:02:43,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 205 transitions, 704 flow [2023-11-29 01:02:43,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:02:43,583 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 508 flow [2023-11-29 01:02:43,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2023-11-29 01:02:43,583 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 14 predicate places. [2023-11-29 01:02:43,583 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 508 flow [2023-11-29 01:02:43,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 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 01:02:43,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:43,584 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:43,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 01:02:43,584 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:43,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash -889612298, now seen corresponding path program 1 times [2023-11-29 01:02:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:43,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766570020] [2023-11-29 01:02:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:43,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 01:02:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766570020] [2023-11-29 01:02:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766570020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:43,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:43,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351388583] [2023-11-29 01:02:43,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:43,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:43,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:43,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 162 [2023-11-29 01:02:43,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 01:02:43,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:43,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 162 [2023-11-29 01:02:43,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:49,078 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([615] L1038-->L1038-1: Formula: (= |v_#race~data~0_4| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][134], [Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 113#L1023-6true, threadThread2of4ForFork0InUse, threadThread3of4ForFork0NotInUse, threadThread4of4ForFork0NotInUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 178#true, 135#L1038-1true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:49,078 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-29 01:02:49,078 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 01:02:49,078 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 01:02:49,078 INFO L297 olderBase$Statistics]: existing Event has 142 ancestors and is cut-off event [2023-11-29 01:02:49,438 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][193], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 113#L1023-6true, threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:49,438 INFO L294 olderBase$Statistics]: this new event has 144 ancestors and is cut-off event [2023-11-29 01:02:49,438 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 01:02:49,438 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 01:02:49,439 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 01:02:50,012 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][186], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 149#L1024true, 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,012 INFO L294 olderBase$Statistics]: this new event has 146 ancestors and is cut-off event [2023-11-29 01:02:50,012 INFO L297 olderBase$Statistics]: existing Event has 146 ancestors and is cut-off event [2023-11-29 01:02:50,012 INFO L297 olderBase$Statistics]: existing Event has 146 ancestors and is cut-off event [2023-11-29 01:02:50,012 INFO L297 olderBase$Statistics]: existing Event has 146 ancestors and is cut-off event [2023-11-29 01:02:50,366 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][193], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 113#L1023-6true, threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 93#L1024-3true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,366 INFO L294 olderBase$Statistics]: this new event has 148 ancestors and is cut-off event [2023-11-29 01:02:50,366 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2023-11-29 01:02:50,367 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2023-11-29 01:02:50,367 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2023-11-29 01:02:50,795 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][173], [Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 38#L1024true, Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 93#L1024-3true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,795 INFO L294 olderBase$Statistics]: this new event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,795 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,796 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,796 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,797 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][145], [Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 38#L1024true, Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, 90#L1024-3true, Black: 180#(= |#race~data~0| 0), 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,797 INFO L294 olderBase$Statistics]: this new event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,797 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,797 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,797 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2023-11-29 01:02:50,891 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][186], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, 26#L1023-5true, threadThread4of4ForFork0InUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, 149#L1024true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 93#L1024-3true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,891 INFO L294 olderBase$Statistics]: this new event has 150 ancestors and is not cut-off event [2023-11-29 01:02:50,891 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is not cut-off event [2023-11-29 01:02:50,891 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is not cut-off event [2023-11-29 01:02:50,891 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is not cut-off event [2023-11-29 01:02:50,932 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([717] L1023-4-->L1023-5: Formula: (= |v_threadThread2of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread2of4ForFork0_#t~nondet5=|v_threadThread2of4ForFork0_#t~nondet5_3|} OutVars{threadThread2of4ForFork0_#t~nondet5=|v_threadThread2of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][152], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 211#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, 90#L1024-3true, Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 128#L1023-5true, 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 93#L1024-3true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,932 INFO L294 olderBase$Statistics]: this new event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,932 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,932 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,932 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,936 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][173], [Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of4ForFork0InUse, 26#L1023-5true, threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 134#L1024-3true, 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 180#(= |#race~data~0| 0), 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 93#L1024-3true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,936 INFO L294 olderBase$Statistics]: this new event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,936 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,936 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,936 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,938 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][145], [Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 134#L1024-3true, 43#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, 90#L1024-3true, Black: 180#(= |#race~data~0| 0), 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:50,938 INFO L294 olderBase$Statistics]: this new event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,938 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,938 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:50,938 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 01:02:52,240 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([615] L1038-->L1038-1: Formula: (= |v_#race~data~0_4| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][134], [113#L1023-6true, threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, 39#L1022-3true, Black: 178#true, 135#L1038-1true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:52,240 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is cut-off event [2023-11-29 01:02:52,240 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2023-11-29 01:02:52,240 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2023-11-29 01:02:52,240 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is cut-off event [2023-11-29 01:02:53,052 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([615] L1038-->L1038-1: Formula: (= |v_#race~data~0_4| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][134], [threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 113#L1023-6true, threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 178#true, 135#L1038-1true, 68#L1023-5true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:53,052 INFO L294 olderBase$Statistics]: this new event has 167 ancestors and is cut-off event [2023-11-29 01:02:53,052 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:02:53,052 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 01:02:53,052 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 01:02:53,369 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([615] L1038-->L1038-1: Formula: (= |v_#race~data~0_4| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][134], [113#L1023-6true, threadThread2of4ForFork0InUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 29#L1023-6true, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 178#true, 135#L1038-1true, 93#L1024-3true, 202#true, threadThread1of4ForFork0InUse]) [2023-11-29 01:02:53,369 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2023-11-29 01:02:53,369 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 01:02:53,369 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-29 01:02:53,369 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-29 01:02:54,335 INFO L124 PetriNetUnfolderBase]: 23156/76593 cut-off events. [2023-11-29 01:02:54,335 INFO L125 PetriNetUnfolderBase]: For 40627/73233 co-relation queries the response was YES. [2023-11-29 01:02:54,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144808 conditions, 76593 events. 23156/76593 cut-off events. For 40627/73233 co-relation queries the response was YES. Maximal size of possible extension queue 2690. Compared 1093443 event pairs, 10454 based on Foata normal form. 62/66627 useless extension candidates. Maximal degree in co-relation 88444. Up to 25530 conditions per place. [2023-11-29 01:02:54,954 INFO L140 encePairwiseOnDemand]: 154/162 looper letters, 43 selfloop transitions, 18 changer transitions 0/198 dead transitions. [2023-11-29 01:02:54,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 198 transitions, 753 flow [2023-11-29 01:02:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:54,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:02:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2023-11-29 01:02:54,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9156378600823045 [2023-11-29 01:02:54,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2023-11-29 01:02:54,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2023-11-29 01:02:54,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:54,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2023-11-29 01:02:54,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 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 01:02:54,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:02:54,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:02:54,957 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 508 flow. Second operand 3 states and 445 transitions. [2023-11-29 01:02:54,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 198 transitions, 753 flow [2023-11-29 01:02:55,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 198 transitions, 743 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:02:55,053 INFO L231 Difference]: Finished difference. Result has 177 places, 187 transitions, 676 flow [2023-11-29 01:02:55,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=177, PETRI_TRANSITIONS=187} [2023-11-29 01:02:55,053 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 13 predicate places. [2023-11-29 01:02:55,053 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 187 transitions, 676 flow [2023-11-29 01:02:55,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 01:02:55,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:55,054 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] [2023-11-29 01:02:55,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 01:02:55,054 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:02:55,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 700029146, now seen corresponding path program 1 times [2023-11-29 01:02:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:55,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603027511] [2023-11-29 01:02:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:55,132 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 01:02:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603027511] [2023-11-29 01:02:55,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603027511] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:02:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854956376] [2023-11-29 01:02:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:55,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:55,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:55,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:55,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:02:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:55,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:02:55,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:55,399 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 01:02:55,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:02:55,457 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 01:02:55,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854956376] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:02:55,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:02:55,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 01:02:55,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981284718] [2023-11-29 01:02:55,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:02:55,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:02:55,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:55,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:02:55,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:02:55,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2023-11-29 01:02:55,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 187 transitions, 676 flow. Second operand has 9 states, 9 states have (on average 132.33333333333334) internal successors, (1191), 9 states have internal predecessors, (1191), 0 states have call successors, (0), 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 01:02:55,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:55,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2023-11-29 01:02:55,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:01,880 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][223], [threadThread2of4ForFork0NotInUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 113#L1023-6true, 26#L1023-5true, threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 219#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 209#true, Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 211#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 68#L1023-5true, threadThread1of4ForFork0InUse]) [2023-11-29 01:03:01,880 INFO L294 olderBase$Statistics]: this new event has 167 ancestors and is cut-off event [2023-11-29 01:03:01,880 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:03:01,880 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:03:01,880 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is cut-off event [2023-11-29 01:03:02,256 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][220], [threadThread2of4ForFork0NotInUse, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), 26#L1023-5true, threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 149#L1024true, 219#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 211#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 180#(= |#race~data~0| 0), 21#L1038-2true, 68#L1023-5true, threadThread1of4ForFork0InUse]) [2023-11-29 01:03:02,256 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 01:03:02,256 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 01:03:02,256 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 01:03:02,257 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 01:03:03,023 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][223], [113#L1023-6true, Black: 186#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of4ForFork0InUse, threadThread3of4ForFork0NotInUse, 26#L1023-5true, threadThread4of4ForFork0InUse, Black: 198#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 134#L1024-3true, 219#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 209#true, Black: 171#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 170#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 167#true, Black: 211#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 180#(= |#race~data~0| 0), 21#L1038-2true, threadThread1of4ForFork0InUse]) [2023-11-29 01:03:03,023 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2023-11-29 01:03:03,023 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 01:03:03,023 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 01:03:03,023 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 01:03:04,320 INFO L124 PetriNetUnfolderBase]: 17011/65418 cut-off events. [2023-11-29 01:03:04,320 INFO L125 PetriNetUnfolderBase]: For 24290/30004 co-relation queries the response was YES. [2023-11-29 01:03:04,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113789 conditions, 65418 events. 17011/65418 cut-off events. For 24290/30004 co-relation queries the response was YES. Maximal size of possible extension queue 1623. Compared 937442 event pairs, 5578 based on Foata normal form. 40/59134 useless extension candidates. Maximal degree in co-relation 83377. Up to 9168 conditions per place. [2023-11-29 01:03:04,871 INFO L140 encePairwiseOnDemand]: 152/162 looper letters, 61 selfloop transitions, 10 changer transitions 0/228 dead transitions. [2023-11-29 01:03:04,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 228 transitions, 912 flow [2023-11-29 01:03:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:03:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 01:03:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1112 transitions. [2023-11-29 01:03:04,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8580246913580247 [2023-11-29 01:03:04,874 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1112 transitions. [2023-11-29 01:03:04,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1112 transitions. [2023-11-29 01:03:04,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:04,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1112 transitions. [2023-11-29 01:03:04,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 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 01:03:04,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 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 01:03:04,879 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 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 01:03:04,879 INFO L175 Difference]: Start difference. First operand has 177 places, 187 transitions, 676 flow. Second operand 8 states and 1112 transitions. [2023-11-29 01:03:04,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 228 transitions, 912 flow [2023-11-29 01:03:05,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 228 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:03:05,026 INFO L231 Difference]: Finished difference. Result has 185 places, 190 transitions, 684 flow [2023-11-29 01:03:05,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=684, PETRI_PLACES=185, PETRI_TRANSITIONS=190} [2023-11-29 01:03:05,027 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 21 predicate places. [2023-11-29 01:03:05,027 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 190 transitions, 684 flow [2023-11-29 01:03:05,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 132.33333333333334) internal successors, (1191), 9 states have internal predecessors, (1191), 0 states have call successors, (0), 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 01:03:05,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:05,027 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:05,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:03:05,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e409779b-35f3-467c-ad36-2600b5d7e067/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:05,228 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:03:05,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1069193686, now seen corresponding path program 1 times [2023-11-29 01:03:05,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:05,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928228404] [2023-11-29 01:03:05,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:05,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:05,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:05,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928228404] [2023-11-29 01:03:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928228404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:05,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457694670] [2023-11-29 01:03:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:05,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:05,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:05,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 162 [2023-11-29 01:03:05,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 190 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 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 01:03:05,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:05,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 162 [2023-11-29 01:03:05,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:06,471 INFO L124 PetriNetUnfolderBase]: 688/8236 cut-off events. [2023-11-29 01:03:06,471 INFO L125 PetriNetUnfolderBase]: For 2810/3280 co-relation queries the response was YES. [2023-11-29 01:03:06,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13496 conditions, 8236 events. 688/8236 cut-off events. For 2810/3280 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 97964 event pairs, 149 based on Foata normal form. 199/8039 useless extension candidates. Maximal degree in co-relation 5263. Up to 662 conditions per place. [2023-11-29 01:03:06,506 INFO L140 encePairwiseOnDemand]: 154/162 looper letters, 16 selfloop transitions, 8 changer transitions 0/180 dead transitions. [2023-11-29 01:03:06,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 180 transitions, 643 flow [2023-11-29 01:03:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:03:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2023-11-29 01:03:06,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.934156378600823 [2023-11-29 01:03:06,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2023-11-29 01:03:06,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2023-11-29 01:03:06,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:06,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2023-11-29 01:03:06,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 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 01:03:06,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:03:06,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:03:06,509 INFO L175 Difference]: Start difference. First operand has 185 places, 190 transitions, 684 flow. Second operand 3 states and 454 transitions. [2023-11-29 01:03:06,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 180 transitions, 643 flow [2023-11-29 01:03:06,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 180 transitions, 633 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-29 01:03:06,519 INFO L231 Difference]: Finished difference. Result has 184 places, 173 transitions, 554 flow [2023-11-29 01:03:06,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=184, PETRI_TRANSITIONS=173} [2023-11-29 01:03:06,520 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 20 predicate places. [2023-11-29 01:03:06,520 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 173 transitions, 554 flow [2023-11-29 01:03:06,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 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 01:03:06,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:06,520 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:06,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 01:03:06,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:03:06,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:06,521 INFO L85 PathProgramCache]: Analyzing trace with hash -687293355, now seen corresponding path program 1 times [2023-11-29 01:03:06,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:06,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494774679] [2023-11-29 01:03:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:06,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 01:03:06,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:06,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494774679] [2023-11-29 01:03:06,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494774679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:06,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:06,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:03:06,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131040835] [2023-11-29 01:03:06,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:06,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:06,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:06,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 162 [2023-11-29 01:03:06,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 173 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 01:03:06,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:06,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 162 [2023-11-29 01:03:06,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:07,783 INFO L124 PetriNetUnfolderBase]: 1114/8848 cut-off events. [2023-11-29 01:03:07,783 INFO L125 PetriNetUnfolderBase]: For 6815/8873 co-relation queries the response was YES. [2023-11-29 01:03:07,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16774 conditions, 8848 events. 1114/8848 cut-off events. For 6815/8873 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 108185 event pairs, 714 based on Foata normal form. 24/8171 useless extension candidates. Maximal degree in co-relation 13084. Up to 2065 conditions per place. [2023-11-29 01:03:07,821 INFO L140 encePairwiseOnDemand]: 157/162 looper letters, 33 selfloop transitions, 5 changer transitions 0/180 dead transitions. [2023-11-29 01:03:07,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 180 transitions, 668 flow [2023-11-29 01:03:07,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:07,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:03:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2023-11-29 01:03:07,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8950617283950617 [2023-11-29 01:03:07,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2023-11-29 01:03:07,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2023-11-29 01:03:07,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:07,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2023-11-29 01:03:07,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 01:03:07,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:03:07,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:03:07,825 INFO L175 Difference]: Start difference. First operand has 184 places, 173 transitions, 554 flow. Second operand 3 states and 435 transitions. [2023-11-29 01:03:07,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 180 transitions, 668 flow [2023-11-29 01:03:07,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 180 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:03:07,845 INFO L231 Difference]: Finished difference. Result has 187 places, 176 transitions, 586 flow [2023-11-29 01:03:07,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=187, PETRI_TRANSITIONS=176} [2023-11-29 01:03:07,846 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 23 predicate places. [2023-11-29 01:03:07,846 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 176 transitions, 586 flow [2023-11-29 01:03:07,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 01:03:07,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:07,846 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:07,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 01:03:07,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:03:07,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:07,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1558139131, now seen corresponding path program 1 times [2023-11-29 01:03:07,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803936862] [2023-11-29 01:03:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:07,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:03:07,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803936862] [2023-11-29 01:03:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803936862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:07,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:07,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:03:07,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359474364] [2023-11-29 01:03:07,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:07,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:07,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:07,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 162 [2023-11-29 01:03:07,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 176 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 01:03:07,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:07,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 162 [2023-11-29 01:03:07,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:09,186 INFO L124 PetriNetUnfolderBase]: 1121/9276 cut-off events. [2023-11-29 01:03:09,186 INFO L125 PetriNetUnfolderBase]: For 9177/11582 co-relation queries the response was YES. [2023-11-29 01:03:09,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18055 conditions, 9276 events. 1121/9276 cut-off events. For 9177/11582 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 114569 event pairs, 707 based on Foata normal form. 18/8649 useless extension candidates. Maximal degree in co-relation 14364. Up to 2095 conditions per place. [2023-11-29 01:03:09,220 INFO L140 encePairwiseOnDemand]: 157/162 looper letters, 33 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2023-11-29 01:03:09,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 182 transitions, 691 flow [2023-11-29 01:03:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:09,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:03:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2023-11-29 01:03:09,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8930041152263375 [2023-11-29 01:03:09,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2023-11-29 01:03:09,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2023-11-29 01:03:09,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:09,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2023-11-29 01:03:09,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:09,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:03:09,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 01:03:09,223 INFO L175 Difference]: Start difference. First operand has 187 places, 176 transitions, 586 flow. Second operand 3 states and 434 transitions. [2023-11-29 01:03:09,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 182 transitions, 691 flow [2023-11-29 01:03:09,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 182 transitions, 677 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-29 01:03:09,248 INFO L231 Difference]: Finished difference. Result has 189 places, 179 transitions, 614 flow [2023-11-29 01:03:09,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=189, PETRI_TRANSITIONS=179} [2023-11-29 01:03:09,249 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 25 predicate places. [2023-11-29 01:03:09,249 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 179 transitions, 614 flow [2023-11-29 01:03:09,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 01:03:09,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:09,249 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:09,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 01:03:09,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 01:03:09,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:09,250 INFO L85 PathProgramCache]: Analyzing trace with hash -686973071, now seen corresponding path program 1 times [2023-11-29 01:03:09,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:09,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682636205] [2023-11-29 01:03:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:09,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:03:09,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:03:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:03:09,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:03:09,326 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:03:09,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-29 01:03:09,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-29 01:03:09,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-29 01:03:09,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-29 01:03:09,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-29 01:03:09,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 01:03:09,328 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:09,328 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 01:03:09,328 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-11-29 01:03:09,350 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-29 01:03:09,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 180 transitions, 415 flow [2023-11-29 01:03:09,530 INFO L124 PetriNetUnfolderBase]: 93/1560 cut-off events. [2023-11-29 01:03:09,530 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-11-29 01:03:09,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1666 conditions, 1560 events. 93/1560 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8071 event pairs, 23 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 895. Up to 80 conditions per place. [2023-11-29 01:03:09,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 180 transitions, 415 flow [2023-11-29 01:03:09,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 180 transitions, 415 flow [2023-11-29 01:03:09,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:03:09,539 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;@226a6e5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:03:09,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-29 01:03:09,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:03:09,542 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 01:03:09,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:03:09,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:09,543 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] [2023-11-29 01:03:09,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 01:03:09,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:09,543 INFO L85 PathProgramCache]: Analyzing trace with hash 171085181, now seen corresponding path program 1 times [2023-11-29 01:03:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:09,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174547385] [2023-11-29 01:03:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:09,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:09,677 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 01:03:09,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:09,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174547385] [2023-11-29 01:03:09,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174547385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:09,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:09,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:03:09,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057837619] [2023-11-29 01:03:09,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:09,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:03:09,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:09,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:03:09,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:03:09,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 180 [2023-11-29 01:03:09,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 180 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 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 01:03:09,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:09,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 180 [2023-11-29 01:03:09,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:27,606 INFO L124 PetriNetUnfolderBase]: 39523/136157 cut-off events. [2023-11-29 01:03:27,606 INFO L125 PetriNetUnfolderBase]: For 5419/5419 co-relation queries the response was YES. [2023-11-29 01:03:28,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192885 conditions, 136157 events. 39523/136157 cut-off events. For 5419/5419 co-relation queries the response was YES. Maximal size of possible extension queue 2921. Compared 2029905 event pairs, 33951 based on Foata normal form. 1214/126984 useless extension candidates. Maximal degree in co-relation 63922. Up to 47594 conditions per place. [2023-11-29 01:03:28,544 INFO L140 encePairwiseOnDemand]: 161/180 looper letters, 48 selfloop transitions, 13 changer transitions 1/196 dead transitions. [2023-11-29 01:03:28,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 196 transitions, 569 flow [2023-11-29 01:03:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:03:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:03:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 879 transitions. [2023-11-29 01:03:28,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8138888888888889 [2023-11-29 01:03:28,546 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 879 transitions. [2023-11-29 01:03:28,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 879 transitions. [2023-11-29 01:03:28,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:28,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 879 transitions. [2023-11-29 01:03:28,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 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 01:03:28,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 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 01:03:28,548 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 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 01:03:28,548 INFO L175 Difference]: Start difference. First operand has 183 places, 180 transitions, 415 flow. Second operand 6 states and 879 transitions. [2023-11-29 01:03:28,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 196 transitions, 569 flow [2023-11-29 01:03:28,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 196 transitions, 569 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:03:28,556 INFO L231 Difference]: Finished difference. Result has 189 places, 185 transitions, 497 flow [2023-11-29 01:03:28,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=497, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2023-11-29 01:03:28,556 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, 6 predicate places. [2023-11-29 01:03:28,556 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 497 flow [2023-11-29 01:03:28,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 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 01:03:28,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:28,557 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] [2023-11-29 01:03:28,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 01:03:28,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 01:03:28,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1482280490, now seen corresponding path program 1 times [2023-11-29 01:03:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:28,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144513898] [2023-11-29 01:03:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:28,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:28,580 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 01:03:28,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:28,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144513898] [2023-11-29 01:03:28,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144513898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:28,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:28,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:03:28,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429773429] [2023-11-29 01:03:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:28,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:28,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:28,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:28,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:28,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 180 [2023-11-29 01:03:28,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 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 01:03:28,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:28,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 180 [2023-11-29 01:03:28,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:49,708 INFO L124 PetriNetUnfolderBase]: 51884/148624 cut-off events. [2023-11-29 01:03:49,708 INFO L125 PetriNetUnfolderBase]: For 17102/28711 co-relation queries the response was YES. [2023-11-29 01:03:50,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233358 conditions, 148624 events. 51884/148624 cut-off events. For 17102/28711 co-relation queries the response was YES. Maximal size of possible extension queue 3616. Compared 2115850 event pairs, 29580 based on Foata normal form. 0/136449 useless extension candidates. Maximal degree in co-relation 217630. Up to 48608 conditions per place. [2023-11-29 01:03:51,194 INFO L140 encePairwiseOnDemand]: 172/180 looper letters, 37 selfloop transitions, 7 changer transitions 4/201 dead transitions. [2023-11-29 01:03:51,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 201 transitions, 617 flow [2023-11-29 01:03:51,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:51,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:03:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 492 transitions. [2023-11-29 01:03:51,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2023-11-29 01:03:51,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 492 transitions. [2023-11-29 01:03:51,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 492 transitions. [2023-11-29 01:03:51,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:51,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 492 transitions. [2023-11-29 01:03:51,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 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 01:03:51,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 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 01:03:51,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 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 01:03:51,198 INFO L175 Difference]: Start difference. First operand has 189 places, 185 transitions, 497 flow. Second operand 3 states and 492 transitions. [2023-11-29 01:03:51,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 201 transitions, 617 flow [2023-11-29 01:03:54,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 201 transitions, 613 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:03:54,341 INFO L231 Difference]: Finished difference. Result has 191 places, 187 transitions, 525 flow [2023-11-29 01:03:54,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=191, PETRI_TRANSITIONS=187} [2023-11-29 01:03:54,342 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, 8 predicate places. [2023-11-29 01:03:54,342 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 187 transitions, 525 flow [2023-11-29 01:03:54,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 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 01:03:54,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:54,342 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] [2023-11-29 01:03:54,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 01:03:54,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 01:03:54,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:54,343 INFO L85 PathProgramCache]: Analyzing trace with hash 63231537, now seen corresponding path program 1 times [2023-11-29 01:03:54,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:54,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691861588] [2023-11-29 01:03:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:54,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:54,395 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 01:03:54,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:54,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691861588] [2023-11-29 01:03:54,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691861588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:54,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:54,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:03:54,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5846908] [2023-11-29 01:03:54,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:54,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:54,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:54,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:54,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:54,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 180 [2023-11-29 01:03:54,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 187 transitions, 525 flow. Second operand has 5 states, 5 states have (on average 147.4) internal successors, (737), 5 states have internal predecessors, (737), 0 states have call successors, (0), 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 01:03:54,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:54,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 180 [2023-11-29 01:03:54,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:04:20,770 INFO L124 PetriNetUnfolderBase]: 56092/185150 cut-off events. [2023-11-29 01:04:20,770 INFO L125 PetriNetUnfolderBase]: For 14016/14027 co-relation queries the response was YES. [2023-11-29 01:04:21,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286266 conditions, 185150 events. 56092/185150 cut-off events. For 14016/14027 co-relation queries the response was YES. Maximal size of possible extension queue 3666. Compared 2835406 event pairs, 39289 based on Foata normal form. 1/160030 useless extension candidates. Maximal degree in co-relation 153437. Up to 57523 conditions per place. [2023-11-29 01:04:22,630 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 32 selfloop transitions, 2 changer transitions 4/190 dead transitions. [2023-11-29 01:04:22,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 190 transitions, 593 flow [2023-11-29 01:04:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:04:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:04:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 915 transitions. [2023-11-29 01:04:22,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8472222222222222 [2023-11-29 01:04:22,632 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 915 transitions. [2023-11-29 01:04:22,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 915 transitions. [2023-11-29 01:04:22,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:04:22,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 915 transitions. [2023-11-29 01:04:22,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 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 01:04:22,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 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 01:04:22,635 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 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 01:04:22,635 INFO L175 Difference]: Start difference. First operand has 191 places, 187 transitions, 525 flow. Second operand 6 states and 915 transitions. [2023-11-29 01:04:22,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 190 transitions, 593 flow [2023-11-29 01:04:24,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 190 transitions, 565 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 01:04:24,729 INFO L231 Difference]: Finished difference. Result has 198 places, 184 transitions, 495 flow [2023-11-29 01:04:24,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=495, PETRI_PLACES=198, PETRI_TRANSITIONS=184} [2023-11-29 01:04:24,730 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, 15 predicate places. [2023-11-29 01:04:24,730 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 184 transitions, 495 flow [2023-11-29 01:04:24,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.4) internal successors, (737), 5 states have internal predecessors, (737), 0 states have call successors, (0), 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 01:04:24,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:04:24,730 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] [2023-11-29 01:04:24,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 01:04:24,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 01:04:24,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:24,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1630350246, now seen corresponding path program 1 times [2023-11-29 01:04:24,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:24,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031313576] [2023-11-29 01:04:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:24,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:24,751 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 01:04:24,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:24,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031313576] [2023-11-29 01:04:24,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031313576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:24,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:24,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:04:24,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046300198] [2023-11-29 01:04:24,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:24,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:04:24,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:24,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:04:24,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:04:24,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 180 [2023-11-29 01:04:24,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 184 transitions, 495 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 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 01:04:24,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:04:24,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 180 [2023-11-29 01:04:24,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand