./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ --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 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:38:45,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:38:45,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 21:38:45,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:38:45,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:38:45,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:38:45,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:38:45,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:38:45,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:38:45,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:38:45,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:38:45,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:38:45,752 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:38:45,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:38:45,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:38:45,755 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:38:45,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:38:45,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:38:45,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:38:45,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:38:45,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:38:45,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:38:45,758 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:38:45,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:38:45,759 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:38:45,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:38:45,759 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:38:45,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:38:45,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:38:45,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:38:45,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:45,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:38:45,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:38:45,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:38:45,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:38:45,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:38:45,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:38:45,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:38:45,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:38:45,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:38:45,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:38:45,766 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_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 [2023-11-23 21:38:46,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:38:46,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:38:46,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:38:46,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:38:46,135 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:38:46,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2023-11-23 21:38:49,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:38:49,733 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:38:49,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2023-11-23 21:38:49,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/data/7ce155a9f/70f37be337e34cefa6510e46f76c4e7d/FLAG585266648 [2023-11-23 21:38:49,755 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/data/7ce155a9f/70f37be337e34cefa6510e46f76c4e7d [2023-11-23 21:38:49,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:38:49,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:38:49,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:49,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:38:49,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:38:49,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:49" (1/1) ... [2023-11-23 21:38:49,769 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28dcd1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:49, skipping insertion in model container [2023-11-23 21:38:49,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:49" (1/1) ... [2023-11-23 21:38:49,803 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:38:50,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:50,027 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:38:50,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:50,082 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:38:50,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50 WrapperNode [2023-11-23 21:38:50,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:50,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:50,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:38:50,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:38:50,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,180 INFO L138 Inliner]: procedures = 22, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 249 [2023-11-23 21:38:50,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:50,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:38:50,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:38:50,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:38:50,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:38:50,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:38:50,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:38:50,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:38:50,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (1/1) ... [2023-11-23 21:38:50,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:50,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:50,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:38:50,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa77a78-d8c2-4fe1-81e2-e334de45915b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:38:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:38:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 21:38:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 21:38:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 21:38:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 21:38:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 21:38:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 21:38:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 21:38:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 21:38:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:38:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-23 21:38:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-23 21:38:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-23 21:38:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-23 21:38:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:38:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:38:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:38:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:38:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:38:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:38:50,333 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:38:50,462 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:38:50,465 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:38:51,110 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:38:51,131 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:38:51,131 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 21:38:51,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:51 BoogieIcfgContainer [2023-11-23 21:38:51,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:38:51,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:38:51,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:38:51,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:38:51,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:38:49" (1/3) ... [2023-11-23 21:38:51,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2620753e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:51, skipping insertion in model container [2023-11-23 21:38:51,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:50" (2/3) ... [2023-11-23 21:38:51,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2620753e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:51, skipping insertion in model container [2023-11-23 21:38:51,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:51" (3/3) ... [2023-11-23 21:38:51,146 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2023-11-23 21:38:51,155 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:38:51,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:38:51,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-23 21:38:51,167 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:38:51,305 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-23 21:38:51,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 431 places, 433 transitions, 908 flow [2023-11-23 21:38:51,633 INFO L124 PetriNetUnfolderBase]: 21/427 cut-off events. [2023-11-23 21:38:51,633 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-23 21:38:51,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 427 events. 21/427 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 707 event pairs, 0 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 300. Up to 2 conditions per place. [2023-11-23 21:38:51,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 431 places, 433 transitions, 908 flow [2023-11-23 21:38:51,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 394 places, 394 transitions, 824 flow [2023-11-23 21:38:51,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:38:51,687 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;@1e4addc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:38:51,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2023-11-23 21:38:51,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:38:51,694 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-23 21:38:51,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:38:51,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:51,695 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] [2023-11-23 21:38:51,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:51,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash -549932649, now seen corresponding path program 1 times [2023-11-23 21:38:51,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:51,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857901943] [2023-11-23 21:38:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:51,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:51,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:51,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:51,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857901943] [2023-11-23 21:38:51,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857901943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:51,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:51,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72142786] [2023-11-23 21:38:51,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:51,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:52,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:52,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:52,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:52,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 433 [2023-11-23 21:38:52,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 394 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:52,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:52,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 433 [2023-11-23 21:38:52,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:52,420 INFO L124 PetriNetUnfolderBase]: 37/521 cut-off events. [2023-11-23 21:38:52,420 INFO L125 PetriNetUnfolderBase]: For 46/48 co-relation queries the response was YES. [2023-11-23 21:38:52,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 521 events. 37/521 cut-off events. For 46/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1750 event pairs, 20 based on Foata normal form. 91/508 useless extension candidates. Maximal degree in co-relation 485. Up to 68 conditions per place. [2023-11-23 21:38:52,434 INFO L140 encePairwiseOnDemand]: 423/433 looper letters, 22 selfloop transitions, 2 changer transitions 1/386 dead transitions. [2023-11-23 21:38:52,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 386 transitions, 856 flow [2023-11-23 21:38:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:52,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1226 transitions. [2023-11-23 21:38:52,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9438029253271748 [2023-11-23 21:38:52,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1226 transitions. [2023-11-23 21:38:52,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1226 transitions. [2023-11-23 21:38:52,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:52,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1226 transitions. [2023-11-23 21:38:52,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:52,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:52,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:52,500 INFO L175 Difference]: Start difference. First operand has 394 places, 394 transitions, 824 flow. Second operand 3 states and 1226 transitions. [2023-11-23 21:38:52,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 386 transitions, 856 flow [2023-11-23 21:38:52,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 386 transitions, 832 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-23 21:38:52,526 INFO L231 Difference]: Finished difference. Result has 383 places, 385 transitions, 786 flow [2023-11-23 21:38:52,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=786, PETRI_PLACES=383, PETRI_TRANSITIONS=385} [2023-11-23 21:38:52,536 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -11 predicate places. [2023-11-23 21:38:52,537 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 385 transitions, 786 flow [2023-11-23 21:38:52,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:52,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:52,539 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] [2023-11-23 21:38:52,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:38:52,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:52,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:52,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1657196562, now seen corresponding path program 1 times [2023-11-23 21:38:52,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:52,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805773183] [2023-11-23 21:38:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:52,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:52,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:52,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805773183] [2023-11-23 21:38:52,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805773183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:52,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:52,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:52,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050277855] [2023-11-23 21:38:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:52,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:52,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:52,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:52,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:52,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-23 21:38:52,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 385 transitions, 786 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:52,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:52,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-23 21:38:52,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:53,022 INFO L124 PetriNetUnfolderBase]: 37/519 cut-off events. [2023-11-23 21:38:53,023 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-23 21:38:53,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 519 events. 37/519 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1681 event pairs, 20 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 580. Up to 67 conditions per place. [2023-11-23 21:38:53,035 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/384 dead transitions. [2023-11-23 21:38:53,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 384 transitions, 830 flow [2023-11-23 21:38:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-23 21:38:53,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-23 21:38:53,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-23 21:38:53,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-23 21:38:53,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:53,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-23 21:38:53,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,058 INFO L175 Difference]: Start difference. First operand has 383 places, 385 transitions, 786 flow. Second operand 3 states and 1221 transitions. [2023-11-23 21:38:53,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 384 transitions, 830 flow [2023-11-23 21:38:53,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 384 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:53,072 INFO L231 Difference]: Finished difference. Result has 381 places, 384 transitions, 784 flow [2023-11-23 21:38:53,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=381, PETRI_TRANSITIONS=384} [2023-11-23 21:38:53,074 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -13 predicate places. [2023-11-23 21:38:53,075 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 384 transitions, 784 flow [2023-11-23 21:38:53,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:53,077 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] [2023-11-23 21:38:53,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:38:53,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:53,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:53,078 INFO L85 PathProgramCache]: Analyzing trace with hash -955341069, now seen corresponding path program 1 times [2023-11-23 21:38:53,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:53,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970093301] [2023-11-23 21:38:53,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:53,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:53,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:53,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970093301] [2023-11-23 21:38:53,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970093301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:53,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:53,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:53,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228705545] [2023-11-23 21:38:53,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:53,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:53,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:53,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:53,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:53,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 433 [2023-11-23 21:38:53,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 384 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:53,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 433 [2023-11-23 21:38:53,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:53,421 INFO L124 PetriNetUnfolderBase]: 37/518 cut-off events. [2023-11-23 21:38:53,422 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 21:38:53,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 518 events. 37/518 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1638 event pairs, 20 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 569. Up to 68 conditions per place. [2023-11-23 21:38:53,434 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 22 selfloop transitions, 2 changer transitions 0/383 dead transitions. [2023-11-23 21:38:53,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 383 transitions, 830 flow [2023-11-23 21:38:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1219 transitions. [2023-11-23 21:38:53,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9384141647421094 [2023-11-23 21:38:53,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1219 transitions. [2023-11-23 21:38:53,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1219 transitions. [2023-11-23 21:38:53,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:53,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1219 transitions. [2023-11-23 21:38:53,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,453 INFO L175 Difference]: Start difference. First operand has 381 places, 384 transitions, 784 flow. Second operand 3 states and 1219 transitions. [2023-11-23 21:38:53,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 383 transitions, 830 flow [2023-11-23 21:38:53,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 383 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:53,481 INFO L231 Difference]: Finished difference. Result has 380 places, 383 transitions, 782 flow [2023-11-23 21:38:53,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=782, PETRI_PLACES=380, PETRI_TRANSITIONS=383} [2023-11-23 21:38:53,484 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -14 predicate places. [2023-11-23 21:38:53,484 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 383 transitions, 782 flow [2023-11-23 21:38:53,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:53,486 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] [2023-11-23 21:38:53,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:38:53,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:53,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1179292841, now seen corresponding path program 1 times [2023-11-23 21:38:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:53,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173633939] [2023-11-23 21:38:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:53,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:53,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173633939] [2023-11-23 21:38:53,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173633939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:53,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:53,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:53,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969531205] [2023-11-23 21:38:53,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:53,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:53,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:53,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:53,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-23 21:38:53,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 383 transitions, 782 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:53,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-23 21:38:53,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:53,840 INFO L124 PetriNetUnfolderBase]: 37/517 cut-off events. [2023-11-23 21:38:53,840 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-23 21:38:53,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 517 events. 37/517 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1572 event pairs, 20 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 556. Up to 67 conditions per place. [2023-11-23 21:38:53,851 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/382 dead transitions. [2023-11-23 21:38:53,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 382 transitions, 826 flow [2023-11-23 21:38:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-23 21:38:53,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-23 21:38:53,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-23 21:38:53,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-23 21:38:53,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:53,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-23 21:38:53,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,867 INFO L175 Difference]: Start difference. First operand has 380 places, 383 transitions, 782 flow. Second operand 3 states and 1221 transitions. [2023-11-23 21:38:53,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 382 transitions, 826 flow [2023-11-23 21:38:53,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 382 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:53,878 INFO L231 Difference]: Finished difference. Result has 379 places, 382 transitions, 780 flow [2023-11-23 21:38:53,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=780, PETRI_PLACES=379, PETRI_TRANSITIONS=382} [2023-11-23 21:38:53,881 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -15 predicate places. [2023-11-23 21:38:53,882 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 382 transitions, 780 flow [2023-11-23 21:38:53,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:53,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:53,883 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] [2023-11-23 21:38:53,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:38:53,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:53,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash -192845590, now seen corresponding path program 1 times [2023-11-23 21:38:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:53,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737518339] [2023-11-23 21:38:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:53,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:53,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:53,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737518339] [2023-11-23 21:38:53,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737518339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:53,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:53,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:53,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063305050] [2023-11-23 21:38:53,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:53,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:53,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:53,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:54,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 433 [2023-11-23 21:38:54,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 382 transitions, 780 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:54,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 433 [2023-11-23 21:38:54,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:54,248 INFO L124 PetriNetUnfolderBase]: 37/516 cut-off events. [2023-11-23 21:38:54,253 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-23 21:38:54,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 516 events. 37/516 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1482 event pairs, 20 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 545. Up to 68 conditions per place. [2023-11-23 21:38:54,265 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 22 selfloop transitions, 2 changer transitions 0/381 dead transitions. [2023-11-23 21:38:54,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 381 transitions, 826 flow [2023-11-23 21:38:54,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:54,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1219 transitions. [2023-11-23 21:38:54,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9384141647421094 [2023-11-23 21:38:54,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1219 transitions. [2023-11-23 21:38:54,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1219 transitions. [2023-11-23 21:38:54,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:54,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1219 transitions. [2023-11-23 21:38:54,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,282 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,283 INFO L175 Difference]: Start difference. First operand has 379 places, 382 transitions, 780 flow. Second operand 3 states and 1219 transitions. [2023-11-23 21:38:54,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 381 transitions, 826 flow [2023-11-23 21:38:54,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 381 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:54,293 INFO L231 Difference]: Finished difference. Result has 378 places, 381 transitions, 778 flow [2023-11-23 21:38:54,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=378, PETRI_TRANSITIONS=381} [2023-11-23 21:38:54,297 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -16 predicate places. [2023-11-23 21:38:54,297 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 381 transitions, 778 flow [2023-11-23 21:38:54,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:54,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:54,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:38:54,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:54,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1605994722, now seen corresponding path program 1 times [2023-11-23 21:38:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:54,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17752946] [2023-11-23 21:38:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:54,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:54,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:54,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17752946] [2023-11-23 21:38:54,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17752946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:54,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:54,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:54,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461558871] [2023-11-23 21:38:54,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:54,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:54,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:54,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:54,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:54,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-23 21:38:54,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 381 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:54,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-23 21:38:54,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:54,630 INFO L124 PetriNetUnfolderBase]: 37/515 cut-off events. [2023-11-23 21:38:54,630 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-23 21:38:54,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 515 events. 37/515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1457 event pairs, 20 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 532. Up to 67 conditions per place. [2023-11-23 21:38:54,646 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/380 dead transitions. [2023-11-23 21:38:54,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 380 transitions, 822 flow [2023-11-23 21:38:54,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-23 21:38:54,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-23 21:38:54,651 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-23 21:38:54,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-23 21:38:54,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:54,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-23 21:38:54,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,661 INFO L175 Difference]: Start difference. First operand has 378 places, 381 transitions, 778 flow. Second operand 3 states and 1221 transitions. [2023-11-23 21:38:54,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 380 transitions, 822 flow [2023-11-23 21:38:54,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 380 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:54,671 INFO L231 Difference]: Finished difference. Result has 377 places, 380 transitions, 776 flow [2023-11-23 21:38:54,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=377, PETRI_TRANSITIONS=380} [2023-11-23 21:38:54,676 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -17 predicate places. [2023-11-23 21:38:54,676 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 380 transitions, 776 flow [2023-11-23 21:38:54,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:54,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:54,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:38:54,679 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:54,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash -240772870, now seen corresponding path program 1 times [2023-11-23 21:38:54,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:54,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159768694] [2023-11-23 21:38:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:54,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:54,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:54,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159768694] [2023-11-23 21:38:54,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159768694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:54,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:54,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:54,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975339880] [2023-11-23 21:38:54,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:54,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:54,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-23 21:38:54,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 380 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:54,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:54,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-23 21:38:54,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:56,105 INFO L124 PetriNetUnfolderBase]: 755/4819 cut-off events. [2023-11-23 21:38:56,105 INFO L125 PetriNetUnfolderBase]: For 63/80 co-relation queries the response was YES. [2023-11-23 21:38:56,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5824 conditions, 4819 events. 755/4819 cut-off events. For 63/80 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 45143 event pairs, 387 based on Foata normal form. 0/3549 useless extension candidates. Maximal degree in co-relation 5755. Up to 936 conditions per place. [2023-11-23 21:38:56,200 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/379 dead transitions. [2023-11-23 21:38:56,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 379 transitions, 820 flow [2023-11-23 21:38:56,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:56,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-23 21:38:56,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-23 21:38:56,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-23 21:38:56,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-23 21:38:56,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:56,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-23 21:38:56,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,216 INFO L175 Difference]: Start difference. First operand has 377 places, 380 transitions, 776 flow. Second operand 3 states and 1221 transitions. [2023-11-23 21:38:56,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 379 transitions, 820 flow [2023-11-23 21:38:56,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 379 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:56,226 INFO L231 Difference]: Finished difference. Result has 376 places, 379 transitions, 774 flow [2023-11-23 21:38:56,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=774, PETRI_PLACES=376, PETRI_TRANSITIONS=379} [2023-11-23 21:38:56,228 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -18 predicate places. [2023-11-23 21:38:56,228 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 379 transitions, 774 flow [2023-11-23 21:38:56,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:56,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:56,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:38:56,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:56,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:56,231 INFO L85 PathProgramCache]: Analyzing trace with hash 262272608, now seen corresponding path program 1 times [2023-11-23 21:38:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:56,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605532660] [2023-11-23 21:38:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:56,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:56,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:56,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605532660] [2023-11-23 21:38:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605532660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:56,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:56,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038905387] [2023-11-23 21:38:56,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:56,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:56,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:56,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 433 [2023-11-23 21:38:56,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 379 transitions, 774 flow. Second operand has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:56,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 433 [2023-11-23 21:38:56,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:56,522 INFO L124 PetriNetUnfolderBase]: 52/509 cut-off events. [2023-11-23 21:38:56,522 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-23 21:38:56,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 509 events. 52/509 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1811 event pairs, 30 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 581. Up to 90 conditions per place. [2023-11-23 21:38:56,529 INFO L140 encePairwiseOnDemand]: 424/433 looper letters, 29 selfloop transitions, 3 changer transitions 0/379 dead transitions. [2023-11-23 21:38:56,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 379 transitions, 843 flow [2023-11-23 21:38:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:56,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1214 transitions. [2023-11-23 21:38:56,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9345650500384911 [2023-11-23 21:38:56,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1214 transitions. [2023-11-23 21:38:56,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1214 transitions. [2023-11-23 21:38:56,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:56,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1214 transitions. [2023-11-23 21:38:56,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,544 INFO L175 Difference]: Start difference. First operand has 376 places, 379 transitions, 774 flow. Second operand 3 states and 1214 transitions. [2023-11-23 21:38:56,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 379 transitions, 843 flow [2023-11-23 21:38:56,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 379 transitions, 839 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:38:56,553 INFO L231 Difference]: Finished difference. Result has 371 places, 374 transitions, 771 flow [2023-11-23 21:38:56,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=771, PETRI_PLACES=371, PETRI_TRANSITIONS=374} [2023-11-23 21:38:56,555 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -23 predicate places. [2023-11-23 21:38:56,555 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 374 transitions, 771 flow [2023-11-23 21:38:56,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:56,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:56,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:38:56,557 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:56,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1359064935, now seen corresponding path program 1 times [2023-11-23 21:38:56,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:56,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344552758] [2023-11-23 21:38:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344552758] [2023-11-23 21:38:56,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344552758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:56,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:56,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:56,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826818291] [2023-11-23 21:38:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:56,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:56,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:56,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:56,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:56,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 433 [2023-11-23 21:38:56,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 374 transitions, 771 flow. Second operand has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:56,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 433 [2023-11-23 21:38:56,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:56,763 INFO L124 PetriNetUnfolderBase]: 52/505 cut-off events. [2023-11-23 21:38:56,763 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 21:38:56,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 505 events. 52/505 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1785 event pairs, 30 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 563. Up to 88 conditions per place. [2023-11-23 21:38:56,772 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 27 selfloop transitions, 3 changer transitions 0/375 dead transitions. [2023-11-23 21:38:56,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 375 transitions, 838 flow [2023-11-23 21:38:56,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-23 21:38:56,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.939183987682833 [2023-11-23 21:38:56,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-23 21:38:56,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-23 21:38:56,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:56,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-23 21:38:56,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,830 INFO L175 Difference]: Start difference. First operand has 371 places, 374 transitions, 771 flow. Second operand 3 states and 1220 transitions. [2023-11-23 21:38:56,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 375 transitions, 838 flow [2023-11-23 21:38:56,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 375 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:38:56,842 INFO L231 Difference]: Finished difference. Result has 368 places, 370 transitions, 771 flow [2023-11-23 21:38:56,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=771, PETRI_PLACES=368, PETRI_TRANSITIONS=370} [2023-11-23 21:38:56,844 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -26 predicate places. [2023-11-23 21:38:56,844 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 370 transitions, 771 flow [2023-11-23 21:38:56,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:56,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:56,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:38:56,847 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:56,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:56,848 INFO L85 PathProgramCache]: Analyzing trace with hash -511043295, now seen corresponding path program 1 times [2023-11-23 21:38:56,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:56,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372903114] [2023-11-23 21:38:56,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:56,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:56,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:56,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372903114] [2023-11-23 21:38:56,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372903114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:56,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:56,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:56,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954325369] [2023-11-23 21:38:56,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:56,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:56,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:56,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 433 [2023-11-23 21:38:56,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 370 transitions, 771 flow. Second operand has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:56,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:56,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 433 [2023-11-23 21:38:56,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:57,220 INFO L124 PetriNetUnfolderBase]: 70/878 cut-off events. [2023-11-23 21:38:57,220 INFO L125 PetriNetUnfolderBase]: For 24/28 co-relation queries the response was YES. [2023-11-23 21:38:57,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 878 events. 70/878 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4352 event pairs, 25 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 951. Up to 96 conditions per place. [2023-11-23 21:38:57,238 INFO L140 encePairwiseOnDemand]: 423/433 looper letters, 32 selfloop transitions, 4 changer transitions 0/374 dead transitions. [2023-11-23 21:38:57,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 374 transitions, 859 flow [2023-11-23 21:38:57,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1218 transitions. [2023-11-23 21:38:57,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9376443418013857 [2023-11-23 21:38:57,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1218 transitions. [2023-11-23 21:38:57,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1218 transitions. [2023-11-23 21:38:57,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:57,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1218 transitions. [2023-11-23 21:38:57,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,256 INFO L175 Difference]: Start difference. First operand has 368 places, 370 transitions, 771 flow. Second operand 3 states and 1218 transitions. [2023-11-23 21:38:57,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 374 transitions, 859 flow [2023-11-23 21:38:57,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 374 transitions, 856 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:38:57,267 INFO L231 Difference]: Finished difference. Result has 364 places, 366 transitions, 776 flow [2023-11-23 21:38:57,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=364, PETRI_TRANSITIONS=366} [2023-11-23 21:38:57,270 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -30 predicate places. [2023-11-23 21:38:57,270 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 366 transitions, 776 flow [2023-11-23 21:38:57,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:57,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:57,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:38:57,272 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:57,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:57,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1486304676, now seen corresponding path program 1 times [2023-11-23 21:38:57,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112361174] [2023-11-23 21:38:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:57,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:57,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:57,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112361174] [2023-11-23 21:38:57,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112361174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:57,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:57,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:57,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289920218] [2023-11-23 21:38:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:57,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:57,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 433 [2023-11-23 21:38:57,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 366 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:57,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 433 [2023-11-23 21:38:57,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:57,773 INFO L124 PetriNetUnfolderBase]: 104/1021 cut-off events. [2023-11-23 21:38:57,774 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-23 21:38:57,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 1021 events. 104/1021 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5792 event pairs, 9 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 920. Up to 151 conditions per place. [2023-11-23 21:38:57,791 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 31 selfloop transitions, 3 changer transitions 0/371 dead transitions. [2023-11-23 21:38:57,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 371 transitions, 863 flow [2023-11-23 21:38:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:57,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1224 transitions. [2023-11-23 21:38:57,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9422632794457275 [2023-11-23 21:38:57,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1224 transitions. [2023-11-23 21:38:57,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1224 transitions. [2023-11-23 21:38:57,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:57,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1224 transitions. [2023-11-23 21:38:57,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,807 INFO L175 Difference]: Start difference. First operand has 364 places, 366 transitions, 776 flow. Second operand 3 states and 1224 transitions. [2023-11-23 21:38:57,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 371 transitions, 863 flow [2023-11-23 21:38:57,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 371 transitions, 859 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:38:57,819 INFO L231 Difference]: Finished difference. Result has 361 places, 362 transitions, 775 flow [2023-11-23 21:38:57,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=775, PETRI_PLACES=361, PETRI_TRANSITIONS=362} [2023-11-23 21:38:57,821 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -33 predicate places. [2023-11-23 21:38:57,821 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 362 transitions, 775 flow [2023-11-23 21:38:57,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:57,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:57,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:38:57,823 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:57,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:57,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1081218718, now seen corresponding path program 1 times [2023-11-23 21:38:57,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:57,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066254238] [2023-11-23 21:38:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:57,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:57,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:57,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066254238] [2023-11-23 21:38:57,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066254238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:57,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:57,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978146516] [2023-11-23 21:38:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:57,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:57,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 433 [2023-11-23 21:38:57,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 362 transitions, 775 flow. Second operand has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:57,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 433 [2023-11-23 21:38:57,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:58,416 INFO L124 PetriNetUnfolderBase]: 153/1634 cut-off events. [2023-11-23 21:38:58,416 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-11-23 21:38:58,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 1634 events. 153/1634 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11217 event pairs, 12 based on Foata normal form. 0/1427 useless extension candidates. Maximal degree in co-relation 1419. Up to 235 conditions per place. [2023-11-23 21:38:58,453 INFO L140 encePairwiseOnDemand]: 423/433 looper letters, 34 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2023-11-23 21:38:58,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 368 transitions, 873 flow [2023-11-23 21:38:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-23 21:38:58,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.939183987682833 [2023-11-23 21:38:58,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-23 21:38:58,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-23 21:38:58,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:58,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-23 21:38:58,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:58,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:58,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:58,473 INFO L175 Difference]: Start difference. First operand has 361 places, 362 transitions, 775 flow. Second operand 3 states and 1220 transitions. [2023-11-23 21:38:58,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 368 transitions, 873 flow [2023-11-23 21:38:58,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 368 transitions, 870 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:38:58,489 INFO L231 Difference]: Finished difference. Result has 357 places, 358 transitions, 780 flow [2023-11-23 21:38:58,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=780, PETRI_PLACES=357, PETRI_TRANSITIONS=358} [2023-11-23 21:38:58,491 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -37 predicate places. [2023-11-23 21:38:58,492 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 358 transitions, 780 flow [2023-11-23 21:38:58,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:58,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:58,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:58,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:38:58,494 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:58,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash 330918765, now seen corresponding path program 1 times [2023-11-23 21:38:58,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:58,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284204459] [2023-11-23 21:38:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:58,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:58,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:58,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284204459] [2023-11-23 21:38:58,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284204459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:58,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:58,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:58,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271941577] [2023-11-23 21:38:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:58,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:58,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:58,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:58,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 433 [2023-11-23 21:38:58,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 358 transitions, 780 flow. Second operand has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:58,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:58,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 433 [2023-11-23 21:38:58,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:59,206 INFO L124 PetriNetUnfolderBase]: 222/2345 cut-off events. [2023-11-23 21:38:59,206 INFO L125 PetriNetUnfolderBase]: For 169/173 co-relation queries the response was YES. [2023-11-23 21:38:59,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2970 conditions, 2345 events. 222/2345 cut-off events. For 169/173 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 18370 event pairs, 23 based on Foata normal form. 1/2066 useless extension candidates. Maximal degree in co-relation 1891. Up to 332 conditions per place. [2023-11-23 21:38:59,240 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 30 selfloop transitions, 3 changer transitions 19/365 dead transitions. [2023-11-23 21:38:59,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 365 transitions, 875 flow [2023-11-23 21:38:59,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1225 transitions. [2023-11-23 21:38:59,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9430331023864511 [2023-11-23 21:38:59,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1225 transitions. [2023-11-23 21:38:59,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1225 transitions. [2023-11-23 21:38:59,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:59,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1225 transitions. [2023-11-23 21:38:59,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,253 INFO L175 Difference]: Start difference. First operand has 357 places, 358 transitions, 780 flow. Second operand 3 states and 1225 transitions. [2023-11-23 21:38:59,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 365 transitions, 875 flow [2023-11-23 21:38:59,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 365 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:38:59,261 INFO L231 Difference]: Finished difference. Result has 354 places, 335 transitions, 740 flow [2023-11-23 21:38:59,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=354, PETRI_TRANSITIONS=335} [2023-11-23 21:38:59,263 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -40 predicate places. [2023-11-23 21:38:59,263 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 335 transitions, 740 flow [2023-11-23 21:38:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:59,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:59,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:38:59,264 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:38:59,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:59,265 INFO L85 PathProgramCache]: Analyzing trace with hash -498504540, now seen corresponding path program 1 times [2023-11-23 21:38:59,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:59,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604136647] [2023-11-23 21:38:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:59,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604136647] [2023-11-23 21:38:59,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604136647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:59,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:59,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:59,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165133365] [2023-11-23 21:38:59,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:59,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:59,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:59,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:59,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 433 [2023-11-23 21:38:59,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 335 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:59,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 433 [2023-11-23 21:38:59,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:14,846 INFO L124 PetriNetUnfolderBase]: 18653/70621 cut-off events. [2023-11-23 21:39:14,846 INFO L125 PetriNetUnfolderBase]: For 1780/1943 co-relation queries the response was YES. [2023-11-23 21:39:15,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102231 conditions, 70621 events. 18653/70621 cut-off events. For 1780/1943 co-relation queries the response was YES. Maximal size of possible extension queue 2585. Compared 1052028 event pairs, 8500 based on Foata normal form. 9/61071 useless extension candidates. Maximal degree in co-relation 36105. Up to 23233 conditions per place. [2023-11-23 21:39:15,864 INFO L140 encePairwiseOnDemand]: 421/433 looper letters, 29 selfloop transitions, 6 changer transitions 0/340 dead transitions. [2023-11-23 21:39:15,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 340 transitions, 825 flow [2023-11-23 21:39:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:39:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-23 21:39:15,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.939183987682833 [2023-11-23 21:39:15,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-23 21:39:15,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-23 21:39:15,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:15,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-23 21:39:15,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:15,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:15,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:15,880 INFO L175 Difference]: Start difference. First operand has 354 places, 335 transitions, 740 flow. Second operand 3 states and 1220 transitions. [2023-11-23 21:39:15,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 340 transitions, 825 flow [2023-11-23 21:39:16,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 340 transitions, 822 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:39:16,141 INFO L231 Difference]: Finished difference. Result has 332 places, 335 transitions, 767 flow [2023-11-23 21:39:16,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=767, PETRI_PLACES=332, PETRI_TRANSITIONS=335} [2023-11-23 21:39:16,143 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -62 predicate places. [2023-11-23 21:39:16,143 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 335 transitions, 767 flow [2023-11-23 21:39:16,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:16,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:16,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:16,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:39:16,145 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:16,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:16,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1077198239, now seen corresponding path program 1 times [2023-11-23 21:39:16,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:16,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576921350] [2023-11-23 21:39:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:16,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:16,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:16,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576921350] [2023-11-23 21:39:16,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576921350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:16,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:16,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:16,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712357023] [2023-11-23 21:39:16,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:16,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:16,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:16,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:16,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 433 [2023-11-23 21:39:16,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 335 transitions, 767 flow. Second operand has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:16,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:16,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 433 [2023-11-23 21:39:16,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:18,412 INFO L124 PetriNetUnfolderBase]: 2051/10903 cut-off events. [2023-11-23 21:39:18,412 INFO L125 PetriNetUnfolderBase]: For 84/102 co-relation queries the response was YES. [2023-11-23 21:39:18,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15378 conditions, 10903 events. 2051/10903 cut-off events. For 84/102 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 131268 event pairs, 546 based on Foata normal form. 0/9291 useless extension candidates. Maximal degree in co-relation 8432. Up to 2106 conditions per place. [2023-11-23 21:39:18,670 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 25 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2023-11-23 21:39:18,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 339 transitions, 834 flow [2023-11-23 21:39:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:18,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:39:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1227 transitions. [2023-11-23 21:39:18,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445727482678984 [2023-11-23 21:39:18,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1227 transitions. [2023-11-23 21:39:18,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1227 transitions. [2023-11-23 21:39:18,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:18,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1227 transitions. [2023-11-23 21:39:18,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,687 INFO L175 Difference]: Start difference. First operand has 332 places, 335 transitions, 767 flow. Second operand 3 states and 1227 transitions. [2023-11-23 21:39:18,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 339 transitions, 834 flow [2023-11-23 21:39:18,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 339 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 21:39:18,701 INFO L231 Difference]: Finished difference. Result has 333 places, 334 transitions, 769 flow [2023-11-23 21:39:18,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=333, PETRI_TRANSITIONS=334} [2023-11-23 21:39:18,704 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -61 predicate places. [2023-11-23 21:39:18,704 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 334 transitions, 769 flow [2023-11-23 21:39:18,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:18,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:18,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:39:18,706 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:18,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:18,707 INFO L85 PathProgramCache]: Analyzing trace with hash 400150128, now seen corresponding path program 1 times [2023-11-23 21:39:18,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:18,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033364271] [2023-11-23 21:39:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:18,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:18,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:18,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033364271] [2023-11-23 21:39:18,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033364271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:18,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:18,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812145496] [2023-11-23 21:39:18,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:18,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:18,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:18,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:18,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:18,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 433 [2023-11-23 21:39:18,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 334 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:18,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 433 [2023-11-23 21:39:18,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:23,260 INFO L124 PetriNetUnfolderBase]: 3507/18059 cut-off events. [2023-11-23 21:39:23,261 INFO L125 PetriNetUnfolderBase]: For 429/438 co-relation queries the response was YES. [2023-11-23 21:39:23,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25937 conditions, 18059 events. 3507/18059 cut-off events. For 429/438 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 236948 event pairs, 1169 based on Foata normal form. 0/15818 useless extension candidates. Maximal degree in co-relation 25148. Up to 2985 conditions per place. [2023-11-23 21:39:23,546 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 24 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2023-11-23 21:39:23,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 338 transitions, 834 flow [2023-11-23 21:39:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:23,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:39:23,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1229 transitions. [2023-11-23 21:39:23,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9461123941493457 [2023-11-23 21:39:23,551 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1229 transitions. [2023-11-23 21:39:23,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1229 transitions. [2023-11-23 21:39:23,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:23,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1229 transitions. [2023-11-23 21:39:23,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.6666666666667) internal successors, (1229), 3 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:23,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:23,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:23,560 INFO L175 Difference]: Start difference. First operand has 333 places, 334 transitions, 769 flow. Second operand 3 states and 1229 transitions. [2023-11-23 21:39:23,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 338 transitions, 834 flow [2023-11-23 21:39:23,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 338 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:39:23,574 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 767 flow [2023-11-23 21:39:23,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=767, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2023-11-23 21:39:23,576 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -62 predicate places. [2023-11-23 21:39:23,576 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 767 flow [2023-11-23 21:39:23,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:23,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:23,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:23,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 21:39:23,577 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:23,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash 538070738, now seen corresponding path program 1 times [2023-11-23 21:39:23,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:23,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537204896] [2023-11-23 21:39:23,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:23,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:23,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537204896] [2023-11-23 21:39:23,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537204896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:23,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:23,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:23,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150146573] [2023-11-23 21:39:23,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:23,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:23,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:23,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:23,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 433 [2023-11-23 21:39:23,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 767 flow. Second operand has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:23,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:23,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 433 [2023-11-23 21:39:23,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:27,104 INFO L124 PetriNetUnfolderBase]: 3234/16112 cut-off events. [2023-11-23 21:39:27,105 INFO L125 PetriNetUnfolderBase]: For 631/666 co-relation queries the response was YES. [2023-11-23 21:39:27,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23628 conditions, 16112 events. 3234/16112 cut-off events. For 631/666 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 203694 event pairs, 1093 based on Foata normal form. 0/14261 useless extension candidates. Maximal degree in co-relation 22492. Up to 2594 conditions per place. [2023-11-23 21:39:27,395 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 26 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-23 21:39:27,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 337 transitions, 836 flow [2023-11-23 21:39:27,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:39:27,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1227 transitions. [2023-11-23 21:39:27,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445727482678984 [2023-11-23 21:39:27,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1227 transitions. [2023-11-23 21:39:27,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1227 transitions. [2023-11-23 21:39:27,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:27,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1227 transitions. [2023-11-23 21:39:27,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:27,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:27,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:27,411 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 767 flow. Second operand 3 states and 1227 transitions. [2023-11-23 21:39:27,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 337 transitions, 836 flow [2023-11-23 21:39:27,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 337 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:39:27,427 INFO L231 Difference]: Finished difference. Result has 331 places, 332 transitions, 765 flow [2023-11-23 21:39:27,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=331, PETRI_TRANSITIONS=332} [2023-11-23 21:39:27,428 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -63 predicate places. [2023-11-23 21:39:27,429 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 332 transitions, 765 flow [2023-11-23 21:39:27,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:27,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:27,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:27,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 21:39:27,430 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:27,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1480384220, now seen corresponding path program 1 times [2023-11-23 21:39:27,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:27,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483309711] [2023-11-23 21:39:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:27,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:27,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:27,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483309711] [2023-11-23 21:39:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483309711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:27,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:27,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:27,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392320374] [2023-11-23 21:39:27,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:27,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:27,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:27,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:27,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:27,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 433 [2023-11-23 21:39:27,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 332 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:27,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:27,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 433 [2023-11-23 21:39:27,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:30,705 INFO L124 PetriNetUnfolderBase]: 2711/13679 cut-off events. [2023-11-23 21:39:30,705 INFO L125 PetriNetUnfolderBase]: For 759/800 co-relation queries the response was YES. [2023-11-23 21:39:30,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19935 conditions, 13679 events. 2711/13679 cut-off events. For 759/800 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 166579 event pairs, 937 based on Foata normal form. 0/12073 useless extension candidates. Maximal degree in co-relation 18739. Up to 2226 conditions per place. [2023-11-23 21:39:30,929 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 24 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2023-11-23 21:39:30,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 336 transitions, 830 flow [2023-11-23 21:39:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:30,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:39:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1229 transitions. [2023-11-23 21:39:30,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9461123941493457 [2023-11-23 21:39:30,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1229 transitions. [2023-11-23 21:39:30,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1229 transitions. [2023-11-23 21:39:30,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:30,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1229 transitions. [2023-11-23 21:39:30,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.6666666666667) internal successors, (1229), 3 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:30,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:30,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:30,945 INFO L175 Difference]: Start difference. First operand has 331 places, 332 transitions, 765 flow. Second operand 3 states and 1229 transitions. [2023-11-23 21:39:30,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 336 transitions, 830 flow [2023-11-23 21:39:30,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 336 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:39:30,962 INFO L231 Difference]: Finished difference. Result has 330 places, 331 transitions, 763 flow [2023-11-23 21:39:30,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=763, PETRI_PLACES=330, PETRI_TRANSITIONS=331} [2023-11-23 21:39:30,963 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -64 predicate places. [2023-11-23 21:39:30,963 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 331 transitions, 763 flow [2023-11-23 21:39:30,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:30,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:30,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:30,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 21:39:30,965 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:30,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:30,965 INFO L85 PathProgramCache]: Analyzing trace with hash -675761760, now seen corresponding path program 1 times [2023-11-23 21:39:30,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:30,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619147331] [2023-11-23 21:39:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:30,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:32,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:32,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619147331] [2023-11-23 21:39:32,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619147331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:32,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:32,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:39:32,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228412268] [2023-11-23 21:39:32,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:32,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:39:32,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:32,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:39:32,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:39:32,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 433 [2023-11-23 21:39:32,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 331 transitions, 763 flow. Second operand has 6 states, 6 states have (on average 404.1666666666667) internal successors, (2425), 6 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:32,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:32,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 433 [2023-11-23 21:39:32,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:33,575 INFO L124 PetriNetUnfolderBase]: 1050/6716 cut-off events. [2023-11-23 21:39:33,575 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-23 21:39:33,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8946 conditions, 6716 events. 1050/6716 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 70012 event pairs, 188 based on Foata normal form. 0/5927 useless extension candidates. Maximal degree in co-relation 8258. Up to 1280 conditions per place. [2023-11-23 21:39:33,699 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 14 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2023-11-23 21:39:33,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 330 transitions, 797 flow [2023-11-23 21:39:33,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:39:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:39:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2431 transitions. [2023-11-23 21:39:33,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9357197844495766 [2023-11-23 21:39:33,709 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2431 transitions. [2023-11-23 21:39:33,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2431 transitions. [2023-11-23 21:39:33,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:33,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2431 transitions. [2023-11-23 21:39:33,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 405.1666666666667) internal successors, (2431), 6 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:33,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:33,727 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:33,727 INFO L175 Difference]: Start difference. First operand has 330 places, 331 transitions, 763 flow. Second operand 6 states and 2431 transitions. [2023-11-23 21:39:33,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 330 transitions, 797 flow [2023-11-23 21:39:33,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 330 transitions, 793 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:39:33,740 INFO L231 Difference]: Finished difference. Result has 332 places, 330 transitions, 765 flow [2023-11-23 21:39:33,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=332, PETRI_TRANSITIONS=330} [2023-11-23 21:39:33,741 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -62 predicate places. [2023-11-23 21:39:33,742 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 330 transitions, 765 flow [2023-11-23 21:39:33,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.1666666666667) internal successors, (2425), 6 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:33,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:33,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:33,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 21:39:33,744 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread5Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:33,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1144326919, now seen corresponding path program 1 times [2023-11-23 21:39:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:33,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275418776] [2023-11-23 21:39:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:33,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:33,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:33,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275418776] [2023-11-23 21:39:33,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275418776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:33,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:33,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:33,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270508191] [2023-11-23 21:39:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:33,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:33,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:34,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 433 [2023-11-23 21:39:34,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 330 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:34,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:34,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 433 [2023-11-23 21:39:34,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:36,731 INFO L124 PetriNetUnfolderBase]: 2159/11245 cut-off events. [2023-11-23 21:39:36,731 INFO L125 PetriNetUnfolderBase]: For 609/642 co-relation queries the response was YES. [2023-11-23 21:39:36,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16117 conditions, 11245 events. 2159/11245 cut-off events. For 609/642 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 129737 event pairs, 749 based on Foata normal form. 0/9984 useless extension candidates. Maximal degree in co-relation 10918. Up to 1912 conditions per place. [2023-11-23 21:39:36,875 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 26 selfloop transitions, 2 changer transitions 0/334 dead transitions. [2023-11-23 21:39:36,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 334 transitions, 834 flow [2023-11-23 21:39:36,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:39:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1227 transitions. [2023-11-23 21:39:36,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445727482678984 [2023-11-23 21:39:36,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1227 transitions. [2023-11-23 21:39:36,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1227 transitions. [2023-11-23 21:39:36,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:36,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1227 transitions. [2023-11-23 21:39:36,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:36,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:36,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:36,888 INFO L175 Difference]: Start difference. First operand has 332 places, 330 transitions, 765 flow. Second operand 3 states and 1227 transitions. [2023-11-23 21:39:36,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 334 transitions, 834 flow [2023-11-23 21:39:36,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 334 transitions, 827 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 21:39:36,900 INFO L231 Difference]: Finished difference. Result has 329 places, 329 transitions, 760 flow [2023-11-23 21:39:36,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=329, PETRI_TRANSITIONS=329} [2023-11-23 21:39:36,901 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -65 predicate places. [2023-11-23 21:39:36,901 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 329 transitions, 760 flow [2023-11-23 21:39:36,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:36,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:36,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:36,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 21:39:36,903 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread6Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-23 21:39:36,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:36,903 INFO L85 PathProgramCache]: Analyzing trace with hash 442954409, now seen corresponding path program 1 times [2023-11-23 21:39:36,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:36,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885851470] [2023-11-23 21:39:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:36,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:36,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:36,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885851470] [2023-11-23 21:39:36,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885851470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:36,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:36,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:36,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111001025] [2023-11-23 21:39:36,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:36,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:36,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:36,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:36,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:36,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 433 [2023-11-23 21:39:36,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 329 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 405.3333333333333) internal successors, (1216), 3 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:36,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:36,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 433 [2023-11-23 21:39:36,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand